Evolving KobrA to Support SPL for WebGIS Development

SIGTel is a SME aimed at developing WebGIS application. It has a portfolio of products which are a combination of Open GIS components and its own developed components. Although most of these products share a common architecture and common features, they have to be customized according to the user requirements. Now, this SME is working at the improvement of the software development process by introducing a Software Product Line (SPL) approach to automate the process of development and deployment based on that common architecture, as well as reduce time to market and improve quality. The first step has been taken, and KobrA approach has been chosen as the basic methodology to start working. Now, the on-going work is to perform the Domain Engineering, being the management of variability one of the first issues to be resolved. Here, we present a combination of KobrA containment tree and Orthogonal Variation Model (OVM), as the selected alternative to model the variability by using the architecture of our WebGIS SPL.