Strategies for Cooperation Emergence in Distributed Service Discovery
Design Strategies for a Distributed Web
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Transcript of Design Strategies for a Distributed Web
Xtech Dublin 2008
Gareth Rushgrove | morethanseven.net
Design Strategies for a Distributed Web
Gareth Rushgrove, Developer, GCAP Interactive
Gareth Rushgrove | morethanseven.net
In the Beginning
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Web Sites to Web Applications
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Development Frameworks
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Development Frameworks
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Development Frameworks
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Consumer Web APIs
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Infrastructure Web APIs
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Russia 74 people Canada 59 people
France 54 people Australia 53 people
Spain 48 people Italy 46 people
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Malawi 1 person Costa Rica 1 person
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Map data ©2008 Europa Technologies - Terms of Use
Map Satellite Hybrid
Mashups
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Websites Talking To Websites
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“Mashups are the most interesting innovation in software development in 20 years
Douglas Crockford
Building Blocks
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“An aggregate web of connected data sources and services
Tom Coates
Remote Services
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Remote Data
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A Semantic Web
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A Semantic Web
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Url
Format
Output type
Json callback
Report
ufXtract - Microformats Parser (Beta 0.2.2)
ufXtract is a new microformats parser. It has been built from the ground up to take configurationobjects which allow the parsing of different microformats or POSH patterns. The component alsocontains an extendable output format option.
I am building a test suite to fine tune the components compliancy. Most of the compoundmicroformats apart hCard have some issues at the moment. If you have any comments or want topoint out issues please email - info.backnetwork.com
.
hCard
text
Submit
Example urls
http://lab.backnetwork.com/examples/1/page1.htm
Updated
29-Nov-07Added support for pages encoded with ISO-8859-1.
24-Nov-07Some internal changes which fix given-name in hcards and incorrect Url paths from page whichhave been redirected using 302
16-Nov-07I have added error handling and number of other small improvements such as the reporting feature.The major fixes are that the component will now successfully handle multiple header includes oftenused in hCalendar. The hAtom output has been addressed, but as yet not fully tested.
Example Xml output
Example Xml error
lab.backnetwork
Madgex Limited All rights reserved
<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<ufxtract>
<vcard>
<fn>Gareth Rushgrove>/fn>
<n>
<given-name>Gareth</given-name>
<family-name>Rushgrove</family-name>
</n>
<url>http://morethanseven.net/</url>
</vcard>
<report>
<url status="200" millisec="109">http://lab.backnetwork.com/examples/1/page1.htm</url>
<found>1</found>
</report>
</ufxtract>
<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<ufxtract>
<errors>
<error>
<msg>The remote name could not be resolved: 'htp'</msg>
<url>http://htp://localhost/BacknetworkLab/examples/1/page1.htm</url>
</error>
</errors>
</ufxtract>
New
Portable social networkprofile parser
Demo 1
ufXtract - Microformats Parser
Older and superseded
XFN/hCard pagination
XFN pagination
AboutThis site showcases someof the experimental workbeing carried out forbacknetwork. By sharingthis early work we hope insome way to add to theimportant technical andarchitectural discussionsabout portable socialnetworks.
Remote Services Using Remote Data
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Remote Platform
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Not Just The Server
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Adobe Air
Site Specific Browsers
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Browser Enhancements
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Advantages
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Speed
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1
Scalability
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2
Quality
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3
Cost
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4
Problems
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Stability
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1
Reliance
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2
Features
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3
Security
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4
Solutions
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Ecosystem
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1
Abstraction
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Open Source
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Service Level Agreement
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2
Defensive Development
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3
Don’t Trust APIs
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Caching
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Design for Downtime
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Design for Downtime
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Design for Downtime
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Design for Downtime
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High Reliability Systems
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4
Conclusions
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Advantages
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2. Scalability
3. Quality
1. Speed
4. Cost
Problems
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2. Reliance
3. Features
1. Stability
4. Security
Solutions
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2. Service Level Agreements
3. Defensive Development
1. Vibrant Ecosystem
4. High Reliability Systems
API as User Interface
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“The API is the product Todd Sampson
Thanks flickr
Gareth Rushgrove | morethanseven.net
flickr.com/photos/greenchameleon/413936228/
flickr.com/photos/drown/218784366/
flickr.com/photos/--stromberg--/786493111/
flickr.com/photos/dishu/196505696/
flickr.com/photos/zackhughesphotography/
flickr.com/photos/riot_/122129120/
flickr.com/photos/toptechwriter/347297711/
flickr.com/photos/eddie-lawrance/2422166463/
flickr.com/photos/timcaynes/71212509/
splintered.co.uk
flickr.com/photos/riot_/162092237/
flickr.com/photos/midgeymoo/250453177/
flickr.com/photos/benmcleod/97049880/
flickr.com/photos/rougerouge/215087724/
flickr.com/photos/bdebaca/1459722501/
flickr.com/photos/auro/
flickr.com/photos/chrisjones/31900809/
flickr.com/photos/vgm8383/2191223539/
flickr.com/photos/think_different/2140311929
flickr.com/photos/fukagawa/207296944/
Hopefully Still Time for Questions
Gareth Rushgrove | morethanseven.net