SecurityViews: A Dynamic Security for View-Oriented Programming

In wide-enterprise information systems, the same objects play different functional roles during their lifecycle. The development and the distributtion of these functional roles can be realized using one of the aspect oriented software development techniques, in particular view oriented programming (VOP). Generally speaking, views are code fragments, which provide the implementation of different functionalities for the same object domain and theses views can be used as a units for distribution to improve performance issues. Therefore, using VOP encompasses a combination of views, which can be distributed, attached, detached dynamically throughout their object views lifecycle. In this context, an issue has to be addressed when a distributed object offers different views to different clients. A security access problem would be if a client somehow tries to perform an operation of a view, which is not attached by that client. Another issue has to be addressed is to manage views in a transparent way (implicitly) for clients. We propose a dynamic adaptation and security model based on Java security model to deal with theses issues.