WSLS: An Agile System Facilitating the Production of Service-Oriented Web Applications

The process of application evolution in the Web poses a tremendous challenge for Web Engineering. Changing requirements demand solutions providing flexibility beyond mere adaptation on the surface. The shift towards agile systems results in advantages noticeable during the whole application lifecycle. By enabling a reconfigurable composition of the overall system, a reduction of development and maintenance cost can be achieved. In this paper we introduce the WebComposition Service Linking System (WSLS) that provides an agile approach to the Web application life-cycle. WSLS is a component-based system, which applies the service-oriented paradigm. It supports issues of composing, discovering and reusing services. Services are maintainable, manageable and configurable building blocks – as such they are a unit for reuse and for composition of Web applications. Evolution of the composed services is supported and guided in a systematic way by the underlying WSLS framework.