presenter: dean ocamura dokamura@us.ibm
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© 2002 IBM Corporation
Create Your Own Web 2.0 Mashups
“Choose your own open-source adventure”~ SE CS130 UCLA Winter 09 ~
Presenter: Dean Ocamura dokamura@us.ibm.com Project Lead: Gergana Markova gmarkova@us.ibm.comOther mentors: TBD
© 2006 IBM Corporation2
Agenda
Introduction The IBM team Create Your Own Adventure Project Defined What is it there for you
Web 2.0 Mashup Project
Questions?
© 2006 IBM Corporation3
IBM Project Team
Project Lead: Gergana Markova
Each team will have dedicated Lead Technical Mentor and Lead Project Mentor: TBD
Technical Mentors The Go-To experts for any technical questions and challenges
Project Mentors Project environment, scheduling Facilitation & collaboration Team dynamics
Other Open Source online resources and forums IBM Academic Initiative Student Forum IBM Developer Works resources
© 2006 IBM Corporation4
Your Project, “Choose your own adventure”
General Project Technology / Requirements Open Source Web 2.0 Mashups Programming Language: Java Project Repository : Source forge . Net
Use its Wiki, forums to provide status; CVS to check code Defect Tracking (SF.net tracker, Bugzilla, etc…) Project Discussion Forum/Log of your choice (e.g., Wiki) Unit testing of your choice (e.g., JUnit) In the end, it’s your decision what to do!
Deliverables Mandatory
Your project in a public repository, fully documented Optional
An article that will be published on IBM DeveloperWorks detailing your experience
© 2006 IBM Corporation5
Projects Learning Skills
Software Engineering Skills Team Project Planning and execution
Collaboration, Networking
Rapid Decision Making
Open source community involvement (process, resources..)
Research and resources evaluation
Concepts Emphasized Open Source Process
Design Patterns
eXtreme Programming
© 2006 IBM Corporation6
Why Open-source?
Standardization of the rail network enabled industrialized America and Europe
A connecting platform fueling growth, creating new business opportunities Connecting resources with factory efficiencies Connecting goods with markets Enabling new distribution models (Sears Roebuck)
Other technology platforms: electricity grid, national highway systems, ……..the internet
“Standards contribute more to economic growth than patents and licenses.”
"Economic benefits of standardization“, Technical University Dresden (TUD) and the Fraunhofer Institute for Systems and Innovations
© 2006 IBM Corporation
Web 2.0 MASHUPPROJECT
© 2006 IBM Corporation
Mashup
A hybrid application that combines content from more than one source.
Very popular Web 2.0 idea
Mash-up (you can use a hyphen if you want)
The real power in Web services comes from combining
Web services are typically specialized, mashups are “situational”
Development without central authority
© 2006 IBM Corporation
Web 2.0
Web 2.0: O’Reilly Media coined the term
Web 1.0 vs. 2.0
One-to-many vs. many-to-many publishing
Application gets better as publishers make it better vs. application gets better the more people use it
No AJAX vs. AJAX
© 2006 IBM Corporation
What is a Web service?
W3C Web Services Architecture Group
“A Web service is a software system designed to support interoperable machine-to-machine interaction over a network. It has an interface described in a machine-processable format (specifically WSDL). Other systems interact with the Web service in a manner prescribed by its description using SOAP messages, typically conveyed using HTTP with an XML serialization in conjunction with other Web-related standards.”
© 2006 IBM Corporation
Service Oriented Architecture Roles
Service Requester
Service Registry
Service Provider
FindDiscover service
PublishAdvertise service
Bind/InvokeRequest service
© 2006 IBM Corporation
SOAP
A W3C Specification
An XML format, typically holds information for a Web service method call, or a response
Programming language independent
SOAP expanded: Services-Oriented Access Protocol
Used to be Simple Object Access Protocol
© 2006 IBM Corporation
WSDL
Web Services Description Language
A kind of IDL (Interface Definition Language)
An XML format to describe a Web service’s capabilities
Describes a service as a set of endpoints operating on messages
© 2006 IBM Corporation
XML/Java XML Parsers
Parsers help with validation, well-formedness checking, building a DOM, notifying the application of errors
Two API Standards: DOM and SAX
Xerces2
Data Binding APIs
© 2006 IBM Corporation
Suggested ApproachEnvironment setup
Service discovery
Your Mashup Concept
Design / Storyboard
Component Level Design
Implementation
Test
Deployment (Go Live)
© 2006 IBM Corporation
Web service Providers
© 2006 IBM Corporation
Real Mashup Exampleshttp://www.allapis.com/
Yahoo_Flickr_Weather_Maps.aspx
Allows users to search US cities/locations - provides users with information on the city requested
Weather Forecasts
Wikipedia geo Articles
Flickr photos
APIs used Flickr
GeoNames
Yahoo Geocoding
Yahoo Maps
© 2006 IBM Corporation
Skills RequiredJava Programming, nothing fancy
Basic web service concepts: SOAP, WSDL
Basic web-application concepts: URLs, HTTP, JavaScript, server-side scripting (JSP, PHP, other)
Basic XML (syntax, parsing)
AJAX (would be nice)
CSS (optional)
© 2006 IBM Corporation
Gain ExperienceJ2EE
Web services
SOAP
Axis
JAX-RPC
XML
Web UI
AJAX
© 2006 IBM Corporation
Choose your own adventure
Any of your own ideas. We are here to help!
© 2006 IBM Corporation30
Conclusion
Thank you for your time!
We’re here for you!
Questions?
Project Ideas?
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