WebApp Engineering Layers

The development of Web based systems and applications incorporate specialized process models, software engineering methods adapted to the characteristics of WebApp development, and a set of important enabling technologies. Process, methods, and technologies provide a layered approach to WebE that is conceptually identical to the software engineering layers :
- Process
WebE process models embrace the agile development philosophy that defines the following activities
* Embrace change.
* Encourages the creativity and independence of development staff and strong interaction with WebApp stakeholders.
* Builds systems using small development team
* Emphasizes evolutionary or incremental development using short development cycles.

- Methods
The WebE methods landscape encompasses a set of technical tasks that enable a Web engineer to understand, characterize, and then build a high-quality WebApp.

* Communication methods : It defines the approach used to facilitate communication between Web engineers and all other Web stakeholders.
* Requirements analysis methods : These methods provide a basis for understanding the content to be delivered by WebApp, the function to be provided for the end user, and modes of interaction that each class of user will require.
* Design methods : It encompasses a series of design techniques that address WebApp content, application and information architecture, interface design, and navigation structure.
* Testing methods : It incorporates formal technical reviews of both the content and design model and a wide array of testing techniques.

- Tools and Technology
These technologies encompasses a wide array of content description and modeling languages, browsers, multimedia tools, site authoring tools, database connectivity
tools, servers and server utilities, and site management and analysis tools.