A mashup is a web application that combines data from multiple sources to create a new integrated application. Mashups are enabled by recent web technologies like Ajax, REST, XHTML, CSS and RSS that allow data to be dynamically pulled from different sources and presented in a unified way. While similar to earlier concepts like web portals and aggregators, mashups uniquely generate new information and experiences from existing data sources. Legal and business issues remain regarding rights to use third-party data and reliance on external data sources.

1. Web 2.0 Mashups Dr. Harry Chen CMSC 491S/691S March 3, 2008

3. Mashup (web application hybrid) “ In technology, a mashup is a web application that combines data from more than one source into a single integrated tool ; an example is the use of cartographic data from Google Maps to add location information to real-estate data from Craigslist, thereby creating a new and distinct web service that was not originally provided by either source.” http://en.wikipedia.org/wiki/Mashup_(web_application_hybrid)

4. Mashups and Mashups Music Mashups Web 2.0 Mashups

12. Mashup Architecture

13. What’s involved Content Provider API Provider Mashup Site Client Web Browser Content Provider Content Provider API Provider API Provider

18. Key Enabling Technologies

19. Technical issues to consider… Mashup Site Client Web Browser Content Provider API Provider Interface for read/write data Light-weight data format representation Rich content & dynamic user interaction Programming language neutrality Cross-browser and multiple device platforms

31. The CRUD model e.g., REST operation: http://example.com/user/johnsmith

35. Mashup Legal and Business Issues