Web Mashups Presented By: Saket Goel Uni: sg2679

A web application that takes information from one or more sources and presents it in a new way or with a unique layout. It primarily combines data content from more than one source to create a new user experience. Web Mashup = API [1] + API [2] + … API [N]

1) Mapping Mashups Location details associated with data used to place on maps Google Maps, Yahoo Maps, Map Quest 2) Video and photo Mashups Content providers provide metadata associated with the images YahooImages, YouTube 3) Search and Shopping Mashups API’s provided by eBay, Amazon used 4) News Mashups Technologies such as RSS and Atom used to give out news feeds These can combine feeds to create personalized newspapers Diggdot.us

Example of a Mashup

1] API/Content Providers Sources of the content being mashed Methods: 1)Through API’s using web protocols like REST and RSS/Atom 2)Screen Scraping 2] Mashup Site This is where the mashup is hosted but not necessarily where it is executed Ways used for achieving data aggregation: 1)Client-side logic 2)Combination of Client-side and Server-side logic 3] Client’s Web Browser Location where the application is represented graphically and where user interaction takes place

Some would argue the concept of Mashups has been around for years - and this ‘hype’ over Mashups is over the top. For years we have been getting data from other systems and combining data with the existing systems to produce a result. Hype over Mashups because of the ease of end-users producing applications themselves through modern-day Mashup editors. The concept of the end-user being able to easily ‘drag-drop’ and put together a hacked up application within minutes is new.

Used to create and edit mashups Some of the popular mashup editors are: 1. Microsoft Popfly 2. Yahoo Pipes 3. Google Mashup Editor

Drag Drop interface provided Blocks are combined to create mashups Advantages: 1. Easy to use 2. No prior coding experience required Disadvantages: 1. Does not allow as much customization as the other editors.

Pipes is a tool used to aggregate, manipulate and mash up content from around the world. Provides a GUI for combining many feeds into one, geocoding them, sorting and filtering them. Advantages: 1)Allows for a lot of customization and flexibility Disadvantages: 1)Difficult to use for the non-technical people as compared to Popfly

No Drag Drop interface provided Mashups can be written in JavaScript, CSS and HTML Advantage: 1) Maximum room for customization offered to programmers Disadvantage: 1)Reduced user base as too complicated for users who don’t have a strong knowledge of programming

Top Mashup Tags

As on 04/16/2009: Total Mashups listed: 3868 Past 7 Days:19 Past 30 Days:88 Mashups / Day: 3 7 Days Avg.: Days Avg.: 2.9

Mashup

A web portal presents information from diverse sources in a unified way. Apart from the search feature, various other functionalities provided such as , news, stock prices, etc.

Portal versus Mashup Criteria Portal Mashup Classification Older Technology, extension to Using newer, loosely defined Web traditional Web server 2.0 Techniques Aggregation Web server role split into 2 Phases: API’s from different content Techniques Markup Generation providers used to aggregate Aggregation of mark up fragments Location Traditionally, Content Aggregation Content aggregation takes place Dependencies takes place on the server either on the server or the client Aggregation “Salad bar style”: Aggregated “Melting Pot” style: Content can Styles content presented side by side aggregated in any manner, without overlap. resulting in arbitary structured hybrid content

portals, mashup

Mashups serve as an excellent method to represent aggregated data from multiple sources in a visually attractive way. As stated by Douglas Crockford, Senior JavaScript Architect at Yahoo!, “Mashups are one of the most interesting developments in the software industry in the last 20 years.”

Thank You!!