RSS

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=RSS si Weblog-uri =
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[[Image:arrowvi.gif]]  <span lang="IT"><font face="Arial">RSS</font></span>
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<font color="#000080"> <span lang="IT"><font face="Arial"><font size="2">RSS este un protocol deschis de publicare a informatiei pe Web. Un </font></font></span><font size="2"> '' <span lang="IT"><font face="Arial">RSS</font></span>''<span lang="IT"><font face="Arial"><span lang="IT"><font face="Arial"> (Rich Site Summary) feed este un fisier XML, care descrie continutul unui site, fiind actualizat odata cu acesta. </font></span></font></span> </font><font face="Arial"> <font size="2">Initial utilizat de Netcape pentru a crea pagini ''My Netscape'', RSS a fost adoptat de serviciile de informare (news syndication services ), weblog-uri. </font></font></font>
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<font color="#000080"> <font face="Arial"><font size="2">RSS este considerat si prescurtarea de la </font></font><font size="2">'' <font face="Arial">RDF (Resource Description Framework) Site Summary</font>''</font><font face="Arial"><font size="2"> sau </font>''<font size="2">Really Simple Syndication.</font>''</font></font>
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<span lang="IT"><font face="Arial"> <font size="2" color="#000080">RSS este important pentru ca permite informarea despre actualizari ale resurselor online fara a face apel la e-mailuri sau Newslettere, implicit reducand posibilitatea de a primi spam si virusi. Vom vedea de asemenea importanta RSS pentru educatie.</font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080">Un fisier RSS include un logo, linkul la site, un camp de citire si itemii de noutate; fiecare item consta din URL-ul articolului respectiv, titlul, o descriere.</font></font></span>
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<font face="Arial"><font size="2" color="#000080">Sisteme numite agregatoare – ''aggregators'' sau ''harvesters'', citesc RSS-urile si informeaza abonatii lor asupra modificarilor de pe site, informatia fiind astfel transmisa unei audiente largi - ''syndicated''. Informatia din fisierele RSS este stocata in baze de date, care pot fi accesate cu multiple criterii de cautare.</font></font>
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* ''' <span lang="FR"><font face="Arial"><font size="2" color="#000080">De ce sunt importante RSS-urile pentru eLearning?</font></font></span>'''
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<font color="#000080"> <span lang="FR"><font face="Arial"><font size="2">Intrucat RSS este un fisier XML, este un exemplu functional pentru paradigma L</font></font></span><font size="2"><font face="Arial">earning </font> <span lang="FR"><font face="Arial">O</font></span><font face="Arial">bject</font><span lang="FR"><font face="Arial"> si metadata. </font></span> </font><span lang="IT"><font face="Arial"><font size="2">La fel cum noutatile semnalate prin RSS sunt indexate si distribuite intr-o retea RSS, pot fi indexate si distribuite LOs.</font></font></span></font>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Distribuirea este mult mai larga decat intr-un LMS - ''Learning Management System'', unde accesul este limitat doar la utilizatorii autorizati, iar costul unei retele RSS este mult mai ieftina decat a unui LMS.</font></font></span>
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* <font color="#000080"> <span lang="IT"><font face="Arial">'''<font size="2">Arhitectura unei retele RSS</font>'''</font></span></font>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Structura unei retele RSS consta din trei componente principale:</font></font></span>
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# <font face="Arial"><font size="2" color="#000080">un numar mare de provideri de continut, descris prin fisierul RSS propriu </font></font>
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# <font face="Arial"><font size="2" color="#000080">un numar relativ mic de agregatoare, care citesc si indexeaza fisierele RSS</font></font>
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# <span lang="IT"><font face="Arial"><font size="2" color="#000080"> un numar mare de aplicatii de citire – RSS readers; un utilizator al unei astfel de aplicatii poate vizualiza descrierile noutatilor ( itemii ) si vizita fiecare articol.</font></font></span>
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* ''' <span lang="IT"><font face="Arial"><font size="2" color="#000080"> Structura </font></font></span><font size="2" color="#000080"> <font face="Arial">si editarea </font> <span lang="IT"><font face="Arial">unui fisier RSS</font></span></font>'''
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Structura RSS este prezentata mai jos si va fi urmarita prin pasii urmatori, care descriu crearea unui astfel de fisier, utilizand un editor text.</font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> [[Image:image001.gif]] </font></font></span>
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<span lang="IT"><font face="Arial"> '''<font size="2" color="#ff0000">1.</font>'''<font size="2" color="#000080"> Editarea RSS feed se face intr-un editor text oarecare.</font></font></span>
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<span lang="IT"><font face="Arial"> <font size="2" color="#ff0000">'''2.'''</font><font size="2" color="#000080"> Se poate pleca de la un template, ca cel de mai jos, care se copiaza cu numele </font><font size="2" color="#0000ff">nume_site.rss</font><font size="2" color="#000080"><nowiki>: </nowiki></font></font></span>
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<span lang="IT"> <font size="1" color="#0000ff" face="Verdana"> <?xml version="1.0" encoding="ISO-8859-1" ?></font></span>
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<span lang="IT"> <font size="1" color="#0000ff" face="Verdana"> <rss version="0.91"></font></span>
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<span lang="IT"> <font size="1" color="#0000ff" face="Verdana"> <channel></font></span>
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<span lang="IT"> <font size="1" color="#0000ff" face="Verdana"> <title></font><font size="1" color="#000080" face="Verdana">Timsoft</font><font size="1" color="#0000ff" face="Verdana"></title></font></span>
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<span lang="IT"><font size="1" face="Verdana"><font color="#0000ff"> <link></font><font color="#000080">http:/</font></font></span><font size="1" face="Verdana"><font color="#000080">/www.timsoft.ro</font><font color="#0000ff"></link></font></font>
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<font size="1" color="#0000ff" face="Verdana"> <description></font><font size="1" color="#000080" face="Verdana">Timsoft – Site eLearning</font><font size="1" color="#0000ff" face="Verdana"></description></font>
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<font size="1" color="#0000ff" face="Verdana"> <language></font><font size="1" color="#000080" face="Verdana">ro-ro</font><font size="1" color="#0000ff" face="Verdana"></language></font>
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<font size="1" color="#0000ff" face="Verdana"> <image></font>
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<font size="1" color="#0000ff" face="Verdana"> <title></font><font size="1" color="#000080" face="Verdana">Timsoft eLearning</font><font size="1" color="#0000ff" face="Verdana"></title></font>
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<font size="1" color="#0000ff" face="Verdana"> <url></font><font size="1" color="#000080" face="Verdana">http://www.timsoft.ro/images/rss.gif</font><font size="1" color="#0000ff" face="Verdana"></url></font>
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<font size="1" color="#0000ff" face="Verdana"> <link></font><font size="1" color="#000080" face="Verdana">http://www.timsoft.ro</font><font size="1" color="#0000ff" face="Verdana"></link></font>
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<font size="1" color="#0000ff" face="Verdana"> <width></font><font size="1" color="#000080" face="Verdana">36</font><font size="1" color="#0000ff" face="Verdana"></width></font>
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<font size="1" color="#0000ff" face="Verdana"> <height></font><font size="1" color="#000080" face="Verdana">14</font><font size="1" color="#0000ff" face="Verdana"></height></font>
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<font size="1" color="#0000ff" face="Verdana"></image></font>
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<font size="1" color="#0000ff" face="Verdana"> <item></font>
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<font size="1" color="#0000ff" face="Verdana"> <title></font><font size="1" color="#000080" face="Verdana">Un nou curs online</font><font size="1" color="#0000ff" face="Verdana"></title></font>
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<font size="1" color="#0000ff" face="Verdana"> <link></font><font size="1" color="#000080" face="Verdana">http://www.timsoft.ro/cursuri.shtml</font><font size="1" color="#0000ff" face="Verdana"></link></font>
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<font size="1" color="#0000ff" face="Verdana"> <description></font>
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<font color="#000080">  <span lang="FR"><font size="1" face="Verdana"> Incepand cu luna iunie, Timsoft ofera un nou curs online, </font></span></font>
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<font color="#000080"> <span lang="FR"></span> <font size="1" face="Verdana">care pregateste facilitatori eLearning.</font></font>
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<font size="1" color="#0000ff" face="Verdana"> </description></font>
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<font size="1" color="#0000ff" face="Verdana"> </item></font>
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<font size="1" color="#0000ff" face="Verdana"> <item></font>
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<font size="1" color="#0000ff" face="Verdana"> <title></font><font size="1" color="#000080" face="Verdana">eLearning pentru Manageri</font><font size="1" color="#0000ff" face="Verdana"></title></font>
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<font size="1" color="#0000ff" face="Verdana"> <link></font><font size="1" color="#000080" face="Verdana">http://www.timsoft.ro/phare</font><font size="1" color="#0000ff" face="Verdana"></link></font>
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<font color="#0000ff">  <span lang="IT"><font size="1" face="Verdana"> <description></font></span></font>
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<font size="1" color="#000080">  </font> <font size="1" color="#000080" face="Verdana"> <span lang="IT"> Miercuri, 28 aprilie, orele 12, are loc la Camera de Comert si Industrie din Cluj-Napoca, </span> </font>
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<span lang="IT"> <font size="1" color="#000080" face="Verdana"> festivitatea de inmanare a diplomelor si de incheiere a proiectului Phare </font></span>
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<font size="1" face="Verdana"> [http://www.timsoft.ro/phare <u><font color="blue"> <span lang="IT" style="text-decoration: none"><font color="rgb(0, 0, 128)">"Sistem de educatie continua la distanta prin intermediul Internetului"</font></span></font></u>]</font><span lang="IT"><font size="1" color="#000080" face="Verdana">.</font></span>
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<font size="1" color="#000080" face="Verdana">  </font> <font size="1" color="#0000ff" face="Verdana"></description></font>
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<font size="1" color="#0000ff" face="Verdana"> </item></font>
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<font size="1" color="#0000ff" face="Verdana"> </channel></font>
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<font size="1" color="#0000ff" face="Verdana"> </rss></font>
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<font face="Arial"> '''<font size="2" color="#ff0000">3.</font>'''<font size="2" color="#000080"> Definirea unui canal </font></font>
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<font face="Arial"><font size="2" color="#000080">Intre tag-urile <channel> si </channel>, este descris site-ul.</font></font>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Trebuie actualizate in template-ul de mai sus patru informatii: </font> </font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> title – numele site-ului</font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> link - URL-ul home page-ul site-ul</font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> description -o descriere scurta a site-ului </font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> language – limba in care este scris site-ul – valori posibile: <u> http://blogs.law.harvard.edu/tech/stories/storyReader$15</u>.</font></font></span>
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<span lang="IT"><font face="Arial"> <font size="2" color="#ff0000"> '''4.'''</font><font size="2" color="#000080"> Imaginea RSS feed </font></font></span>
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<font size="2" color="#000080"><font face="Arial">Este optionala</font></font><span lang="IT"><font face="Arial"><font size="2" color="#000080">. </font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Imaginea se descrie la fel ca si canalul, prin elementele:</font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> title – numele imaginii, utilizat pentru tag-ul alt</font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> url - URL-ul imaginii </font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> link – URL –ul unde se va ajunge dupa click pe imagine – de obicei e url-ul canalului</font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> width - latimea imaginii in pixeli</font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> height – inaltimea imaginii in pixeli.</font></font></span>
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<span lang="IT"><font face="Arial"> <font size="2" color="#ff0000">'''5.'''</font><font size="2" color="#000080"> Definire linkuri </font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Articolele pe care vizitatorii trebuie sa le citeasca pe site, sunt puse intre o pereche de tag-uri <item> si</item>, cuprinzand informatiile:</font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> title – titlu articol</font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> link - URL-ul articolului</font></font></span>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> description - sumar articol, poate aparea si autor, data.</font></font></span>
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<span lang="IT"><font face="Arial"><font size="2"> <font color="#ff0000"> '''6.'''</font><font color="#000080"> Caractere </font> </font><font size="2" color="#000080"> ''Escape ''</font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Intrucat RSS este un fisier XML, unele caractere sunt ilegale, si trebuie scrise prin secvente Escape – similare caracterelor speciale din HTML. </font></font></span>
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* <font color="#000080">'''<span lang="FR"><font face="Arial"> <font size="2">&</font></font></span>'''<span lang="FR"><font face="Arial"><font size="2"> - &amp; </font></font></span></font>
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* <font size="2" color="#000080"><span lang="FR"><font face="Arial"> '''"''' - &quot;</font></span></font>
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* <font color="#000080">'''<span lang="FR"><font face="Arial"> <font size="2">'</font></font></span>'''<span lang="FR"><font face="Arial"><font size="2"> - &apos;</font></font></span></font>
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* <font color="#000080">'''<span lang="FR"><font face="Arial"> <font size="2">></font></font></span>'''<span lang="FR"><font face="Arial"><font size="2"> - &gt; </font></font></span></font>
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* <font color="#000080">'''<span lang="FR"><font face="Arial"> <font size="2"><</font></font></span>'''<span lang="FR"><font face="Arial"><font size="2"> - &lt; </font></font></span></font>
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<span lang="FR"><font face="Arial"> <font size="2" color="#ff0000">'''7.'''</font><font size="2" color="#000080"> Incarcare fisier RSS pe server</font></font></span>
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<span lang="FR"><font face="Arial"><font size="2" color="#000080"> Este bine ca fisierul RSS sa fie pus in acelasi director cu home page. </font></font></span>
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<span lang="FR"><font face="Arial"> '''<font size="2" color="#ff0000">8. </font>'''<font size="2" color="#000080"> Validare RSS</font></font></span>
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<span lang="FR"><font face="Arial"><font size="2" color="#000080"> Este un pas optional, dar recomandat.</font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Iata mai jos cateva validatoare RSS : </font></font></span>
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* <u> <span lang="IT"><font face="Arial"> [http://rss.scripting.com/ <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2">http://rss.scripting.com/</font></font></font></u>]</font></span></u>
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* <span lang="IT"><font face="Arial"><font size="2" color="#000080"> http://feedvalidator.org</font></font></span>
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<span lang="IT"><font face="Arial"> '''<font size="2" color="#ff0000">9.</font>'''<font size="2" color="#000080"> Informare asupra existentei fisierului RSS</font></font></span><font size="2" color="#000080"><font face="Arial"><nowiki>:</nowiki></font></font>
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<span lang="IT"><font face="Arial"><font size="2"> <font color="#ff0000">'''a. ''' </font> <font color="#000080">Adaugati un buton XML paginii principale [[Image:image002.gif]] – poate fi descarcat de aici: </font> [http://www.timsoft.ro/images/rss.gif <u><font color="blue"> <font color="rgb(0, 0, 128)">http://www.timsoft.ro/images/rss.gif</font></font></u>]<font color="#000080"><nowiki>; plasati imaginea pe pagina principala, cu un link la fisierul RSS:</nowiki></font></font></font></span>
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<font face="Arial"><font size="2" color="#000080"><a href="http://www.mysite.com/mysite.rss"><img src="rss.gif" width=36 height=14 alt="RSS feed" title="RSS feed" border="0"></a> </font></font>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Imaginile uzuale pentru RSS sunt:</font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> [[Image:image004.jpg]] </font></font></span>
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<font face="Arial"> <font size="2" color="#ff0000">'''b. ''' </font><font size="2" color="#000080">Se poate trimite adresa fisierului RSS catre agregatoare, astfel informandu-le sa-l verifice pentru a gasi actualizarile: </font></font>
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* <font size="2" color="#000080"><font face="Arial">Daypop: <u>http://www.daypop.com/info/submit.htm</u></font></font>
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* <font size="2" color="#000080"><font face="Arial">Syndic8: <u> http://www.syndic8.com/suggest.php?Mode=data</u></font></font>
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<font face="Arial"><font size="2" color="#000080">S-a ajuns la un RSS functional.</font></font>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Puteti sa va informati asupra standardelor RSS 1.0 and RSS 2.0 si sa actualizati RSS feed-ul, urmand acelasi proces: se modifica un template, care se va valida.</font></font></span>
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[#0 [[Image:arrowtop_01.gif]]]
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''' <font face="Arial"></font><font size="2" color="#ff0000"><font face="Arial"> [[Image:arrowvi.gif]]</font></font><font face="Arial"><font size="2" color="#ff0000"> Weblog-uri</font></font>'''
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<font face="Arial"><font size="2" color="#000080">Weblogurile, numite si bloguri, au un rol important in reteaua RSS. Un weblog este un site actualizat cu intrari ce sunt automat indexate si datate. Este similar unui jurnal.</font></font>
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<font color="#000080"> <span lang="IT"><font face="Arial"><font size="2">Ceea ce distinge un weblog de o pagina personala este faptul ca weblogul contine intrari cu comentarii si linkuri spre alte resurse online. </font></font></span> </font>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Termenul de Weblog-ul a fost creat de </font></font></span><font size="2"> <font face="Arial"> [http://www.rebeccablood.net/essays/weblog_history.html <u><font color="blue"> <span lang="IT" style="text-decoration: none"><font color="rgb(0, 0, 128)">Jorn Barger</font></span></font></u>]</font><font color="#000080"><span lang="IT"><font face="Arial"> in 1997 – vezi Weblog History - </font></span></font> <font face="Arial"> [http://www.rebeccablood.net/essays/weblog_history.html <u><font color="blue"> <span lang="IT"><font color="rgb(0, 0, 128)"> http://www.rebeccablood.net/essays/weblog_history.html</font></span></font></u>]</font></font><span lang="IT"><font face="Arial"><font size="2" color="#000080"> - si reprezinta una dintre aplicatiile cele mai populare ale RSS.</font></font></span>
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<font face="Arial"><font size="2"><font color="#000080">Se estimeaza existenta a 8 milioane de webloguri - vezi [http://www.pubsub.com PubSub], noi [http://www.timsoft.ro/weblog/index.php?title=statistici_webloguri&more=1&c=1&tb=1&pb=1 mii fiind create zilnic].</font></font></font>
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<span lang="IT"><font face="Arial"><font size="2"> <font color="#000080">Exista webloguri ale unor experti in eLearning sau webloguri utilizate pentru comunicarea cu studentii care participa la un curs – o astfel de initiativa exista la Facultatea de Informatica din Iasi, cursul “Dezvoltare de Aplicatii in Visual Studio .NET” - </font><u> [http://ms.info.uaic.ro/Weblogs/netdev <u><font color="blue"> <font color="rgb(0, 0, 128)">http://ms.info.uaic.ro/Weblogs/netdev</font></font></u>]</u><font color="#000080">. </font></font></font></span><font size="2"><font color="#000080"> <font face="Arial">La Timisoara, weblog-uri are Microsoft Academic Program - </font></font><span lang="IT"><font face="Arial"> [http://ms.utt.ro/weblog/ <u><font color="blue"> <span lang="EN-GB"><font color="rgb(0, 0, 128)">http://ms.utt.ro/weblog/</font></span></font></u>]</font></span></font><font face="Arial"><font size="2" color="#000080">.</font></font>
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<font face="Arial"><font size="2" color="#000080">[http://www.timsoft.ro/weblog eLearningBlog] este tot un weblog educational - iata o [http://www.timsoft.ro/weblog/index.php?title=utilizarea_weblogurilor_in_educatie_invi&more=1&c=1&tb=1&pb=1 descriere] a utilizare sale pentru cursuri. La Blogroll veti gasi o lista a altor weblog-uri educationale romanesti. </font></font>
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<font face="Arial"><font size="2" color="#000080">Puteti gasi o [http://www.timsoft.ro/index.php?pagina=resurse9 colectie de webloguri/RSS romanesti] cu [http://www.timsoft.ro/ro/rss2.php reprezentarea] functie de PageRank.</font></font>
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<span lang="IT"><font face="Arial"><font size="2"> <font color="#000080">O diagrama foarte sugestiva - </font> [http://www.edtechpost.ca/gems/matrix2.gif <u><font color="blue"> <font color="rgb(0, 0, 128)">http://www.edtechpost.ca/gems/matrix2.gif</font></font></u>]<font color="#000080"> - referitoare la utilizarea weblogurilor in educatie, se gaseste pe cunoscutul weblog EdTechPost al lui Scott Leslie - </font> [http://edtechpost.ca/mt/ <u><font color="blue"> <font color="rgb(0, 0, 128)">http://edtechpost.ca/mt/</font></font></u>]<font color="#000080">. Utilizatorii sunt profesori si studenti, iar weblogurile pot fi doar citite sau si comentate. Mai jos apare aceasta diagrama, in traducerea in limba romana:</font></font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> [[Image:image006.jpg]] </font></font></span>
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<span lang="IT"><font face="Arial"><font size="2"> <font color="#000080">Mai jos apare weblogul lui George Siemens, unul dintre cele mai accesate din domeniul eLearning - </font> [http://www.elearnspace.org/blog <u><font color="blue"> <font color="rgb(0, 0, 128)">http://www.elearnspace.org/blog</font></font></u>]<font color="#000080">.</font></font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> [[Image:image008.jpg]] </font></font></span>
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<span lang="IT"><font face="Arial"><font size="2"> <font color="#000080">Un proiect interesant de utilizare a weblog-ului este ResumeBlog - </font> [http://www.resumeblog.com/ <u><font color="blue"> <font color="rgb(0, 0, 128)">http://www.resumeblog.com</font></font></u>]<font color="#000080"> - de dezvoltare a carierei.</font></font></font></span>
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[#0 [[Image:arrowtop_01.gif]]]
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''' <font size="2" color="#ff0000"> <font face="Arial"> [[Image:arrowvi.gif]] </font> <span lang="IT"><font face="Arial">Agregatoare</font></span></font>'''
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Exista doua tipuri de agregatoare: centralizate si personale.</font></font></span>
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<font face="Arial"><font size="2" color="#000080">Un '' agregator centralizat'' este utilizat de un numar mare de persoane. Fiecare utilizator se aboneaza la o colectie de RSS-uri, pe care le poate sorta pe categorii, poate realiza cautari in baza de date a agregatorului care contine itemii tuturor RSS-urilor monitorizate.</font></font>
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<font face="Arial"><font size="2" color="#000080">Unele agregatoare sunt free, cum este Bloglines - <u> http://www.bloglines.com</u>.</font></font>
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<font face="Arial"><font size="2"><font color="#000080"> Un '' agregator personal'' este o aplicatie care ruleaza local. Poate accesa un agregator centralizat sau direct un canal RSS. Exemple sunt: RSSReader - </font> [http://www.rssreader.com/ <u><font color="blue"> <font color="rgb(0, 0, 128)">http://www.rssreader.com</font></font></u>]<font color="#000080">, Active Web Read - </font><u> [http://www.deskshare.com/awr.aspx <u><font color="blue"> <font color="rgb(0, 0, 128)">http://www.deskshare.com/awr.aspx</font></font></u>]</u><font color="#000080">, Amphetadesk - </font> [http://www.disobey.com/amphetadesk <u><font color="blue"> <font color="rgb(0, 0, 128)">http://www.disobey.com/amphetadesk</font></font></u>]<font color="#000080">, FeedDemon - </font></font><font size="2" color="#000080"><u> http://feeddemon.com/feeddemon/index.asp</u>. A se vedea o lista mai ampla la insemnarea [http://www.timsoft.ro/weblog/index.php?title=quicksub_si_protocolul_feed&more=1&c=1&tb=1&pb=1 quickSub si protocolul feed://].</font></font>
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<font face="Arial"><font size="2" color="#000080">Aaron Swartz - [http://www.aaronsw.com http<u><nowiki>://www.aaronsw.com</nowiki></u>] – este cunoscut pentru agregatorul care converteste canale RSS in mesaje transmise prin e-mail. </font></font>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Agregatoarele fac parte dintr-o categorie mai larga de aplicatii, numite '' harvesters''<nowiki>; acestea preiau metadate aflate pe diferite servere si le furnizeaza intr-o forma specifica diferitelor aplicatii.</nowiki></font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080">In domeniul aducational, agregarea descrierii resurselor online asigura accesibilitatea si reutilizarea acestora de catre o comunitate mai larga. </font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Cea mai cunoscuta initiativa ''metadata harvesting'' in educatie este Open Archives Initiative (OAI) - </font></font></span><font size="2"> <font face="Arial"> [http://www.openarchives.org/ <u><font color="blue"> <span lang="IT"><font color="rgb(0, 0, 128)">http://www.openarchives.org/</font></span></font></u>]</font></font><span lang="IT"><font face="Arial"><font size="2" color="#000080">, care permite accesul la articole academice.</font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> [http://www.google.com/search?hl=en&q=%E2%80%98%22metadata%2Bharvesting%22%2Bprojects%E2%80%99&btnG=Google%2BSearch Cautarea google] cu ‘"metadata harvesting" projects’ va localiza proiecte similare.</font></font></span>
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<span lang="IT"><font face="Arial"><font size="2" color="#000080"> Alte aplicatii sunt ''headline viewers'', al caror scop este de a furniza o lista de titluri de la un agregator. O astfel de aplicatie este </font> </font></span><font size="2"><font face="Arial"> <span lang="IT" style="text-decoration: none"><font color="rgb(0, 0, 128)">HeadlineViewer</font></span></font><font color="#000080"><span lang="IT"><font face="Arial"> - </font></span></font><font face="Arial"> [http://www.headlineviewer.com/ <u><font color="blue"> <span lang="IT"><font color="rgb(0, 0, 128)">http://www.headlineviewer.com</font></span></font></u>]</font></font><span lang="IT"><font face="Arial"><font size="2" color="#000080">.</font></font></span>
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<font color="#000080"> <span lang="IT"><font face="Arial"><font size="2">Deosebirea dintre un </font></font></span><font size="2">'' <span lang="IT"><font face="Arial">headline viewer</font></span>''</font><span lang="IT"><font face="Arial"><font size="2"> si un agregator personal consta in aceea ca primul ofera o lista de canale legate de o anumita topica, nefiind necesara o inscriere, ca la al doilea. </font></font></span></font>
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* ''' <font face="Arial"><font size="2" color="#000080">Dezavantaje RSS</font></font>'''
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<font face="Arial"><font size="2" color="#000080">RSS este un instrument important pentru sindicarea informatiei. Lipsa catorva facilitati, face insa sa nu fie o solutie robusta pentru localizarea si organizarea informatiei educationale: </font></font>
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* <font color="#000080"><span lang="IT" dir="ltr"><font face="Arial"> <font size="2">lipsa informatiei de copyright atat in articolele originale, cat si in RSS feeds; RSS presupune ca articolele si metadatele sunt publicate pe pagini free, deci doar resursele free pot fi accesate prin RSS;</font></font></span></font>
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* <font color="#000080"><span lang="IT" dir="ltr"><font face="Arial"> <font size="2"> inabilitatea agregatoarelor RSS de a analiza date conforme diferitelor standarde</font></font></span></font>
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* <font color="#000080"><span lang="IT" dir="ltr"><font face="Arial"> <font size="2">weblogurile comenteaza resurse online – pentru articolele comentate, se realizeaza o dublare a informatiei din RSS, pe site-ul original si in weblog. </font></font></span></font>
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[#0 [[Image:arrowtop_01.gif]]]
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'''<font size="2" color="#ff0000"><font face="Arial"> [[Image:arrowvi.gif]] </font> </font> <span lang="IT"><font face="Arial"><font size="2" color="#ff0000"> Alte informatii</font></font></span>'''
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<span style="font-weight: 700"><font face="Arial"><font size="2" color="#000080">XML</font></font></span>
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* <span lang="FR" dir="ltr"><font face="Arial"> <font size="2" color="#000080">XML.org - </font> [http://www.xml.org <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2">http://www.xml.org</font></font></font></u>]</font></span>
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* <span dir="ltr"><font face="Arial"> <font size="2" color="#000080">XML Beginners Guide - </font> [http://www.xml.org/xml/resources_focus_beginnerguide.shtml <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.xml.org/xml/resources_focus_beginnerguide.shtml</font></font></font></u>]</font></span>
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* <span dir="ltr"><font face="Arial"> <font size="2" color="#000080">XML - </font> [http://www.mvoice.com/metadata/ <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2">http://www.mvoice.com/metadata/</font></font></font></u>]</font></span>
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* <span dir="ltr"><font face="Arial"> <font size="2" color="#000080">XML for the absolute beginner, XML with Java - </font> [http://www.javaworld.com/javaworld/jw-04-1999/jw-04-xml.html <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.javaworld.com/javaworld/jw-04-1999/jw-04-xml.html</font></font></font></u>]</font></span>
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* <font color="#000080"><span lang="IT" dir="ltr"><font face="Arial"> <font size="2">Articole – Sabin-Corneliu Buraga - </font><u><font size="2"> [http://thor.info.uaic.ro/%7Ebusaco/pub.html http://thor.info.uaic.ro/~busaco/pub.html]</font></u></font></span></font>
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<span style="font-weight: 700"><font face="Arial"><font size="2" color="#000080">RSS</font></font></span>
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* <font size="2" color="#000080"><span dir="ltr"><font face="Arial"> RSS Standards - </font></span></font><font face="Arial"> [http://www.ourpla.net/cgi-bin/pikie.cgi?RssStandards <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.ourpla.net/cgi-bin/pikie.cgi?RssStandards</font></font></font></u>]</font>
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* <font size="2" color="#000080"><span dir="ltr"><font face="Arial"> De</font></span><span lang="IT" dir="ltr"><font face="Arial">scriere RSS 2.0 - </font></span> </font> <font face="Arial"> [http://blogs.law.harvard.edu/tech/rss <u><font color="blue"> <span lang="IT"><font color="rgb(0, 0, 128)"><font size="2"> http://blogs.law.harvard.edu/tech/rss</font></font></span></font></u>]</font>
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* <span dir="ltr"><font face="Arial"> <font size="2" color="#000080">Istoric RSS - </font> [http://blogs.law.harvard.edu/tech/rssVersionHistory <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://blogs.law.harvard.edu/tech/rssVersionHistory</font></font></font></u>]</font></span>
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* <span dir="ltr"><font face="Arial"> <font size="2" color="#000080">Weblog History - - </font> [http://www.rebeccablood.net/essays/weblog_history.html <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.rebeccablood.net/essays/weblog_history.html</font></font></font></u>]</font></span>
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* <span dir="ltr"><font face="Arial"> <font size="2" color="#000080">RSS Resources - </font> [http://www.lights.com/weblogs/rss1.html <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.lights.com/weblogs/rss1.html</font></font></font></u>]</font></span>
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* <span dir="ltr"><font face="Arial"> <font size="2" color="#000080">Editor RSS - AnyRSS - Free Custom News Feed Generator - </font> [http://anyrss.maquis.org/ <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2">http://anyrss.maquis.org/</font></font></font></u>]</font></span>
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* <span dir="ltr"><font face="Arial"><font size="2" color="#000080">Motoare de cautare in RSS-uri - </font> [http://www.feedster.com <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2">http://www.feedster.com</font></font></font></u>], [http://www.terrar.com <u><font color="blue"><font color="rgb(0, 0, 128)"><font size="2">http://www.terrar.com</font></font></font></u>] </font></span>
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* <span dir="ltr"><font face="Arial"><font size="2" color="#000080">Search Feeds - </font> [http://www.timsoft.ro/weblog/index.php?title=ce_inseamna_search_feeds_si_la_ce_folose&more=1&c=1&tb=1&pb=1 <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2">http://www.timsoft.ro/weblog/index.php?title=ce_inseamna_search_feeds_si_la_ce_folose&more=1&c=1&tb=1&pb=1</font></font></font></u>]</font></span>
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* <span dir="ltr">'''<span style="font-weight: normal"><font face="Arial"><font size="2" color="#000080">Syndicating Learning Objects with RSS and Trackback – Alan Lavine - </font>[http://www.mcli.dist.maricopa.edu/show/merlot03 <u><font color="blue"><font color="rgb(0, 0, 128)"><font size="2">http://www.mcli.dist.maricopa.edu/show/merlot03</font></font></font></u>]</font></span>'''</span>
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* <font face="Arial"><font size="2"><font color="#000080">An Introduction to RSS for Educational Designers - Stephen Downes<br /></font> [http://www.downes.ca/files/RSS_Educ.htm <u><font color="blue"> <font color="rgb(0, 0, 128)">http://www.downes.ca/files/RSS_Educ.htm</font></font></u>]</font></font>
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* <font color="#000080"><font face="Arial"><font size="2">Open Standards - </font><u><font size="2"> http://xml.coverpages.org</font></u></font></font>
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* <font face="Arial"><font size="2"><font color="#000080"> Distributed Learning Object Repository Network - DLORN<br /></font> [http://www.downes.ca/cgi-bin/dlorn/dlorn <u><font color="blue"> <font color="rgb(0, 0, 128)">http://www.downes.ca/cgi-bin/dlorn/dlorn</font></font></u>]</font></font>
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* <font face="Arial"> <font size="2"><font color="#000080">RSS: The Next Killer App For Education - Mary Harrsch<br /></font> [http://ts.mivu.org/default.asp?show=article&id=2010 <u><font color="blue"> <font color="rgb(0, 0, 128)"> http://ts.mivu.org/default.asp?show=article&id=2010</font></font></u>]</font></font>
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* '''<span style="font-weight: normal"><font face="Arial"> <font size="2" color="#000080">RSS Tutorial for Content Publishers and Webmasters - </font> [http://www.mnot.net/rss/tutorial/ <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.mnot.net/rss/tutorial</font></font></font></u>]</font></span>'''
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* <font color="#000080"><font face="Arial"><font size="2">RSS 1.0: RDF Site Summary</font></font></font><font face="Arial"><font size="2" color="#000080"> - </font> [http://www.w3.org/2001/09/rdfprimer/rss.html <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.w3.org/2001/09/rdfprimer/rss.html</font></font></font></u>]</font>
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* <font face="Arial"> <span style="text-decoration: none"><font color="rgb(0, 0, 128)"><font size="2"> Feedster Builder :: Create a Feed</font></font></span><font color="#000080"><font size="2"> - <u>http://feedster.com/tools.php</u></font></font></font>
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* <font face="Arial"><font size="2"><font color="#000080">SUN RSS Utilities – A Tutorial - </font> [http://java.sun.com/developer/technicalArticles/javaserverpages/rss_utilities/ <u><font color="blue"> <font color="rgb(0, 0, 128)"> http://java.sun.com/developer/technicalArticles/javaserverpages/rss_utilities/</font></font></u>]</font></font>
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* <font face="Arial"><font size="2" color="#000080">RSS Workshop - </font> [http://rssgov.com/rssworkshop.html <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://rssgov.com/rssworkshop.html</font></font></font></u>]</font>
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* <font face="Arial"><font size="2" color="#000080">Editare, validare, publicare - RSS channel editor and directory - <u> http://rssxpress.ukoln.ac.uk</u></font></font>
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* <font face="Arial"><font color="#000080"><font size="2"> Serence – FeedReadear, Editor RSS - [http://www.serence.com  http]</font><u><font size="2">[http://www.serence.com <nowiki>://www.serence.com</nowiki>]</font></u></font><font size="2" color="#000080">.</font></font>
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''' <font face="Arial"><font size="2" color="#000080">Weblog-uri</font></font>'''
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* <font color="#000080">''' <span style="font-weight: normal"><font face="Arial"><font size="2"> Sisteme gazduire weblog-uri in Romania – <u> http://www.weblog.ro</u></font></font></span><font face="Arial"><font color="#000080"><font size="2">,</font></font></font><span style="font-weight: normal"><font face="Arial"><font size="2"><u> http://www.eyecon.ro/index/category/eyeblog </u></font></font></span>'''</font>
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* <font face="Arial"><font size="2" color="#000080">Colectie de webloguri/RSS romanesti - http://www.timsoft.ro/index.php?pagina=resurse9</font></font>
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* <font face="Arial"><font size="2" color="#000080">Radio Userland – Personal Weblogs - </font> [http://radio.userland.com/ <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2">http://radio.userland.com</font></font></font></u>]</font>
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* <font face="Arial"><font size="2" color="#000080">Blogger - </font> [http://www.blogger.com <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2">http://www.blogger.com</font></font></font></u>]</font>
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* <font face="Arial"><font size="2" color="#000080">Blog Software Breakdown – evaluare software weblog - </font> [http://www.asymptomatic.net/blogbreakdown.htm <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.asymptomatic.net/blogbreakdown.htm</font></font></font></u>]</font>
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* '''<span style="font-weight: normal"><font face="Arial"> <font size="2" color="#000080">Weblogg-ed - Using Weblogs and RSS in Education - </font> [http://www.weblogg-ed.com/ <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2">http://www.weblogg-ed.com/</font></font></font></u>]</font></span>'''
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* '''<span style="font-weight: normal"><font face="Arial"> <font size="2" color="#000080">Weblogs in Education - </font> [http://www.calvinly.com/weblog/000094.html <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.calvinly.com/weblog/000094.html</font></font></font></u>]</font></span>'''
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* '''<span style="font-weight: normal"><font face="Arial"> <font size="2" color="#000080">eduBlogs - http://alterego.manilasites.com/stories/storyReader$212</font></font></span>'''
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* '''<span style="font-weight: normal"><font face="Arial"> <font size="2" color="#000080">Internet Research Weblog - </font> [http://www.researchbuzz.com <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://www.researchbuzz.coml</font></font></font></u>]</font></span>'''
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* <font face="Arial"><font size="2" color="#000080">All About Blogs and RSS - </font><u> [http://msdn.microsoft.com/msdnmag/issues/04/04/XMLFiles/default.aspx <u><font color="blue"> <font color="rgb(0, 0, 128)"><font size="2"> http://msdn.microsoft.com/msdnmag/issues/04/04/XMLFiles/default.aspx</font></font></font></u>]</u></font>
[[Categorie:Softuri web gratuite]]
[[Categorie:Softuri web gratuite]]
[[Categorie:RSS]]
[[Categorie:RSS]]

Versiunea de la data 2 februarie 2009 12:02

RSS si Weblog-uri

Arrowvi.gif RSS

RSS este un protocol deschis de publicare a informatiei pe Web. Un RSS (Rich Site Summary) feed este un fisier XML, care descrie continutul unui site, fiind actualizat odata cu acesta. Initial utilizat de Netcape pentru a crea pagini My Netscape, RSS a fost adoptat de serviciile de informare (news syndication services ), weblog-uri.

RSS este considerat si prescurtarea de la RDF (Resource Description Framework) Site Summary sau Really Simple Syndication.

RSS este important pentru ca permite informarea despre actualizari ale resurselor online fara a face apel la e-mailuri sau Newslettere, implicit reducand posibilitatea de a primi spam si virusi. Vom vedea de asemenea importanta RSS pentru educatie.

Un fisier RSS include un logo, linkul la site, un camp de citire si itemii de noutate; fiecare item consta din URL-ul articolului respectiv, titlul, o descriere.

Sisteme numite agregatoare – aggregators sau harvesters, citesc RSS-urile si informeaza abonatii lor asupra modificarilor de pe site, informatia fiind astfel transmisa unei audiente largi - syndicated. Informatia din fisierele RSS este stocata in baze de date, care pot fi accesate cu multiple criterii de cautare.

  • De ce sunt importante RSS-urile pentru eLearning?

Intrucat RSS este un fisier XML, este un exemplu functional pentru paradigma Learning Object si metadata. La fel cum noutatile semnalate prin RSS sunt indexate si distribuite intr-o retea RSS, pot fi indexate si distribuite LOs.

Distribuirea este mult mai larga decat intr-un LMS - Learning Management System, unde accesul este limitat doar la utilizatorii autorizati, iar costul unei retele RSS este mult mai ieftina decat a unui LMS.

  • Arhitectura unei retele RSS

Structura unei retele RSS consta din trei componente principale:

  1. un numar mare de provideri de continut, descris prin fisierul RSS propriu
  2. un numar relativ mic de agregatoare, care citesc si indexeaza fisierele RSS
  3. un numar mare de aplicatii de citire – RSS readers; un utilizator al unei astfel de aplicatii poate vizualiza descrierile noutatilor ( itemii ) si vizita fiecare articol.
  • Structura si editarea unui fisier RSS

Structura RSS este prezentata mai jos si va fi urmarita prin pasii urmatori, care descriu crearea unui astfel de fisier, utilizand un editor text.

Image001.gif

1. Editarea RSS feed se face intr-un editor text oarecare.

2. Se poate pleca de la un template, ca cel de mai jos, care se copiaza cu numele nume_site.rss:

<?xml version="1.0" encoding="ISO-8859-1" ?>

<rss version="0.91">

<channel>

<title>Timsoft</title>

<link>http://www.timsoft.ro</link>

<description>Timsoft – Site eLearning</description>

<language>ro-ro</language>

<image>

<title>Timsoft eLearning</title>

<url>http://www.timsoft.ro/images/rss.gif</url>

<link>http://www.timsoft.ro</link>

<width>36</width>

<height>14</height>

</image>

<item>

<title>Un nou curs online</title>

<link>http://www.timsoft.ro/cursuri.shtml</link>

<description>

Incepand cu luna iunie, Timsoft ofera un nou curs online,

care pregateste facilitatori eLearning.

</description>

</item>

<item>

<title>eLearning pentru Manageri</title>

<link>http://www.timsoft.ro/phare</link>

<description>

Miercuri, 28 aprilie, orele 12, are loc la Camera de Comert si Industrie din Cluj-Napoca,

festivitatea de inmanare a diplomelor si de incheiere a proiectului Phare

"Sistem de educatie continua la distanta prin intermediul Internetului".

</description>

</item>

</channel>

</rss>

3. Definirea unui canal

Intre tag-urile <channel> si </channel>, este descris site-ul.

Trebuie actualizate in template-ul de mai sus patru informatii:

4. Imaginea RSS feed

Este optionala.

Imaginea se descrie la fel ca si canalul, prin elementele:

  • title – numele imaginii, utilizat pentru tag-ul alt
  • url - URL-ul imaginii
  • link – URL –ul unde se va ajunge dupa click pe imagine – de obicei e url-ul canalului
  • width - latimea imaginii in pixeli
  • height – inaltimea imaginii in pixeli.

5. Definire linkuri

Articolele pe care vizitatorii trebuie sa le citeasca pe site, sunt puse intre o pereche de tag-uri <item> si</item>, cuprinzand informatiile:

  • title – titlu articol
  • link - URL-ul articolului
  • description - sumar articol, poate aparea si autor, data.

6. Caractere Escape

Intrucat RSS este un fisier XML, unele caractere sunt ilegale, si trebuie scrise prin secvente Escape – similare caracterelor speciale din HTML.

  • & - &
  • " - "
  • ' - &apos;
  • > - >
  • < - <

7. Incarcare fisier RSS pe server

Este bine ca fisierul RSS sa fie pus in acelasi director cu home page.

8. Validare RSS

Este un pas optional, dar recomandat.

Iata mai jos cateva validatoare RSS :

9. Informare asupra existentei fisierului RSS:

a. Adaugati un buton XML paginii principale Image002.gif – poate fi descarcat de aici: http://www.timsoft.ro/images/rss.gif; plasati imaginea pe pagina principala, cu un link la fisierul RSS:

<a href="http://www.mysite.com/mysite.rss"><img src="rss.gif" width=36 height=14 alt="RSS feed" title="RSS feed" border="0"></a>

Imaginile uzuale pentru RSS sunt:

Image004.jpg

b. Se poate trimite adresa fisierului RSS catre agregatoare, astfel informandu-le sa-l verifice pentru a gasi actualizarile:

S-a ajuns la un RSS functional.

Puteti sa va informati asupra standardelor RSS 1.0 and RSS 2.0 si sa actualizati RSS feed-ul, urmand acelasi proces: se modifica un template, care se va valida.

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Arrowvi.gif Weblog-uri

Weblogurile, numite si bloguri, au un rol important in reteaua RSS. Un weblog este un site actualizat cu intrari ce sunt automat indexate si datate. Este similar unui jurnal.

Ceea ce distinge un weblog de o pagina personala este faptul ca weblogul contine intrari cu comentarii si linkuri spre alte resurse online.

Termenul de Weblog-ul a fost creat de Jorn Barger in 1997 – vezi Weblog History - http://www.rebeccablood.net/essays/weblog_history.html - si reprezinta una dintre aplicatiile cele mai populare ale RSS.

Se estimeaza existenta a 8 milioane de webloguri - vezi PubSub, noi mii fiind create zilnic.

Exista webloguri ale unor experti in eLearning sau webloguri utilizate pentru comunicarea cu studentii care participa la un curs – o astfel de initiativa exista la Facultatea de Informatica din Iasi, cursul “Dezvoltare de Aplicatii in Visual Studio .NET” - <u> http://ms.info.uaic.ro/Weblogs/netdev</u>. La Timisoara, weblog-uri are Microsoft Academic Program - http://ms.utt.ro/weblog/.

eLearningBlog este tot un weblog educational - iata o descriere a utilizare sale pentru cursuri. La Blogroll veti gasi o lista a altor weblog-uri educationale romanesti.

Puteti gasi o colectie de webloguri/RSS romanesti cu reprezentarea functie de PageRank.

O diagrama foarte sugestiva - http://www.edtechpost.ca/gems/matrix2.gif - referitoare la utilizarea weblogurilor in educatie, se gaseste pe cunoscutul weblog EdTechPost al lui Scott Leslie - http://edtechpost.ca/mt/. Utilizatorii sunt profesori si studenti, iar weblogurile pot fi doar citite sau si comentate. Mai jos apare aceasta diagrama, in traducerea in limba romana:

Image006.jpg

Mai jos apare weblogul lui George Siemens, unul dintre cele mai accesate din domeniul eLearning - http://www.elearnspace.org/blog.

Image008.jpg

Un proiect interesant de utilizare a weblog-ului este ResumeBlog - http://www.resumeblog.com - de dezvoltare a carierei.

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Arrowvi.gif Agregatoare

Exista doua tipuri de agregatoare: centralizate si personale.

Un agregator centralizat este utilizat de un numar mare de persoane. Fiecare utilizator se aboneaza la o colectie de RSS-uri, pe care le poate sorta pe categorii, poate realiza cautari in baza de date a agregatorului care contine itemii tuturor RSS-urilor monitorizate.

Unele agregatoare sunt free, cum este Bloglines - http://www.bloglines.com.

Un agregator personal este o aplicatie care ruleaza local. Poate accesa un agregator centralizat sau direct un canal RSS. Exemple sunt: RSSReader - http://www.rssreader.com, Active Web Read - <u> http://www.deskshare.com/awr.aspx</u>, Amphetadesk - http://www.disobey.com/amphetadesk, FeedDemon - http://feeddemon.com/feeddemon/index.asp. A se vedea o lista mai ampla la insemnarea quickSub si protocolul feed://.

Aaron Swartz - http://www.aaronsw.com – este cunoscut pentru agregatorul care converteste canale RSS in mesaje transmise prin e-mail.

Agregatoarele fac parte dintr-o categorie mai larga de aplicatii, numite harvesters; acestea preiau metadate aflate pe diferite servere si le furnizeaza intr-o forma specifica diferitelor aplicatii.

In domeniul aducational, agregarea descrierii resurselor online asigura accesibilitatea si reutilizarea acestora de catre o comunitate mai larga.

Cea mai cunoscuta initiativa metadata harvesting in educatie este Open Archives Initiative (OAI) - http://www.openarchives.org/, care permite accesul la articole academice.

Cautarea google cu ‘"metadata harvesting" projects’ va localiza proiecte similare.

Alte aplicatii sunt headline viewers, al caror scop este de a furniza o lista de titluri de la un agregator. O astfel de aplicatie este HeadlineViewer - http://www.headlineviewer.com.

Deosebirea dintre un headline viewer si un agregator personal consta in aceea ca primul ofera o lista de canale legate de o anumita topica, nefiind necesara o inscriere, ca la al doilea.

  • Dezavantaje RSS

RSS este un instrument important pentru sindicarea informatiei. Lipsa catorva facilitati, face insa sa nu fie o solutie robusta pentru localizarea si organizarea informatiei educationale:

  • lipsa informatiei de copyright atat in articolele originale, cat si in RSS feeds; RSS presupune ca articolele si metadatele sunt publicate pe pagini free, deci doar resursele free pot fi accesate prin RSS;
  • inabilitatea agregatoarelor RSS de a analiza date conforme diferitelor standarde
  • weblogurile comenteaza resurse online – pentru articolele comentate, se realizeaza o dublare a informatiei din RSS, pe site-ul original si in weblog.

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Arrowvi.gif Alte informatii

XML

RSS

Weblog-uri

Adus de la "http://wiki.domenii.eu/wiki/RSS"
Unelte personale
Trusa de unelte