What Is A Mash Up?

웹 2.0의 구성 요소로 주목을 받고 있다. 

구글이나 야후, 마이크로소프트 등이 제공하는 지도 서비스, 인터넷 서점 아마존이 제공하는 상품 정보 등, 자사의 기술을 웹 서비스로서 API를 공개하는 경우가 늘고 있으며, 이들 기능에 독자적인 사용자 인터페이스를 융합하여 새로운 서비스를 제공하고 있다.
미국을 중심으로 다수의 매시업 사례가 등장하여, 범죄 통계 정보, 허리케인 정보, 주유소의 가격정보처럼 실용적인 것에서부터 온천 정보, UFO 목격 정보, 뉴욕의 영화 위치, 현장정보처럼 취미나 엔터테인먼트에 관한 것까지 여러 종류가 있다. 
매시업의 원천이 되는 API의 개발에도 박차가 가해지고 있다.

A mashup, in web development, is a web page, or web application, that uses content from more than one source to create a single new service displayed in a single graphical interface. For example, you could combine the addresses and photographs of your library branches with a Google map to create a map mashup.[1] The term implies easy, fast integration, frequently using open application programming interfaces (API) and data sources to produce enriched results that were not necessarily the original reason for producing the raw source data. The term mashup originally comes from pop music, where people seamlessly combine music from one song with the vocal track from another—thereby mashing them together to create something new.

The main characteristics of a mashup are combination, visualization, and aggregation. It is important to make existing data more useful, for personal and professional use. To be able to permanently access the data of other services, mashups are generally client applications or hosted online.

In the past years, more and more Web applications have published APIs that enable software developers to easily integrate data and functions instead of building them by themselves. Mashups can be considered to have an active role in the evolution of social software and Web 2.0. Mashup composition tools are usually simple enough to be used by end-users. They generally do not require programming skills and rather support visual wiring of GUI widgets, services and components together. Therefore, these tools contribute to a new vision of the Web, where users are able to contribute.

http://en.wikipedia.org/wiki/Mashup_(web_application_hybrid)