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Aggr=
egation
& Syndication with Rich Site Summary (RSS=
)
Michael Samson
Fall 2004 GODORT-M= = meeting
Fall 2004 GODORT-M= = meeting
Intern=
et
today
•E-mail
–Costly, non-cross platform
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–Inefficient (filters & delivery of legitimate content)
–Old, unchanged
–Trust ? (think spam, viruses)
•Web
–Time consuming (browsing & searching)
–Search engines: too much info, very =
complex to use
•
•
RSS
•Rich Site Summary
•Really Simple Syndication
•RDF Simple Syndication
•Rich Site Services
•Really Stops (Salvation from) Spam ?
RSS -
history
•Apple engineer idea in 1990’
<=
span
style=3D'font-size:92%'>•Netscape in 1999
•Today:
‘Reincarnated’ RSS
0.9x, 1.x, 2.xRSS - =
what
is ?
<=
span
style=3D'font-size:75%'>•dialect of XML
•XML format for Web syndication
•XML grammar for sharing data
RSS - =
web
democratization
•WebMaster ó elite=
class
<=
span
class=3DBB style=3D'position:absolute;left:-6.23%'>•NewsMaste=
r ó
=
RSS &a=
mp;
HTML
•G=
aining
popularity
–Lockergnome : 1 million hits from unique IP via RSS in Jan. 2004
•Parallels
HTML’s evolu=
tion
RSS - =
why ?
•Us=
er in
control =3D increased productivity & efficiency
•Convenience: 1 click 1 page current awareness (alert service)
•Easy to understand, use, control (add, delete)
=
;
•Access to richer pool of resources
•Platform independent
•Personalized site subscription
<=
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•Customized database query
•Next level of customization
•Web course feeds&=
nbsp;
•Content NOT stopped (filters & spam)
•Replace e-mail & web browsing
•XML is more pervasive, simple, & practical
RSS -
advantages I
•ALERT service
•Cuts to the chase: filtering, sorting, distractions free (ads, pop-ups, flash, viruses)
•Distribution well beyond occasional web visits
•Reuse content on a large scale
<=
/div>
•Drives conversation & enhances <=
span
style=3D'position:absolute;top:73.75%;left:31.64%;width:60.11%;height:6.0%=
'>communication
•
RSS -
advantages II
•Adds value to web site
•Multiple gateway (another doorway to push info)
•No third parties (self-syndication)
•<=
span
style=3D'font-size:67%'>LO (Learning Objects) feeds
•Predictability (seen at specific intervals of time)
•Loyalty (blog)
RSS -
disadvantages
•3-pane (frame) / chronological display
•Authority, quality, credibility, relevancy
•Can’t be measured, tracked, accounted for
•Another e-Marketing tool?
•Not everything is RSS-’ized’
•Separated, un-contextual
•Synchronization between multiple computers (client, aggregation)
=
•
RSS -
disadvantages II
•Bandwidth hog (NOT Bloglines)
•Tools may be Trojans, malicious software
•Error prone (fast publishing)
•Limited formatting options
RSS
RSS
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RSS
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RSS
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RSS
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RSS
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RSS
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RSS
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RSS
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RSS
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RSS
•No reply button
•NO tailoring to readership
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•Overload: one more tool to learn?!...
•Too many flavors, too many feeds
RSS -
specifications
•7 RSS specs: 0.9x, 1.x, 2.x
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–All XML based (define structure)
–1.0 & 2.0 totally different spec
–RSS 1.0=3DRDF compliant (powerful, complex)
–RSS 2.0 =3Dnon RDF (simpler)
–Atom (Pie, Echo) combines best features from both
•RDF is used for Semantic web – technology for machines to understand the web
•RSS without RDF is used for syndication only
RSS -
publish & subscribe
&#=
8226;Push
& pull mechanism
&=
#8226;Syndication
(push)
&=
#8226;Aggregation
(pull)
RSS - =
user
match
•Aggregation ó=
; Interests
(awareness)
•Syndication ó=
; Competence
(promote specialization)
RSS -
pervasive
•Blog update via cell=
phone
• PDA &=
Tablet
PC
•Browsers =
(Opera, Safari,
Firefox)
RSS - =
who
provides feeds ?
&#=
8226;ALL
big Internet players
&#=
8211;Amazon,
e-Bay
–ABC,
BBC, NPR, NYT, WSJ, etc.
RSS - =
how
can U tell ?
•Web sites-look for:
– Icon=
s: XML,
RDF, RSS, RSS2,
‘capsule’, ‘coffee cup’
– Word=
s:
“Syndicate this site&#=
8221;
•Blogs (built-in, most)
RSS -
software
•Aggregation
–Client
–Server
–Browser: Opera, Safari, FireFox
=
•Syndication
–RSS 0.9X, 1.X, 2.X, Atom
–NewsMaster toolkit
–RSS template
Aggreg=
ation
- news reader
• software package that allows
a user to subscribe to a =
web
site/blog and get updat=
es
whenever the site/=
blog
is updated (pull feeds=
)
•*see RSS enabled browsers=
(PC, Mac, op=
en source)
Aggreg=
ation
- five steps
1.Know info is there via a FEED (alert system)
2.Quickly determine what it is via HEADLINE
3.Quickly scan to get ‘gist’ of info via=
SUMMARY
=
4.READ full article
5.DEAL with info (delete, mail, file, =
etc.)
Syndic=
ation
•‘Push’ information through
RSS/XML file
•Own content
•Others’ content (Feedroll, 2RSS)*
•*<=
/span>see NewsMaster’s toolkit
Syndic=
ation
- template