Abstract
Software design is an important activity in the development lifecycle but its benefits are often not realized. Scattering and tangling of cross-cutting behaviour with other elements causes problems of comprehensibility, traceability, evolvability, and reusability. Attempts have been made to address this problem in the programming domain but the problem has not been addressed effectively at earlier stages in the lifecycle. Composition patterns presents an approach to addressing this problem at the design stage. We take a case of a learning resource center and demonstrate how aspect oriented software development (AOSD) can be applied in software design. This paper describes the implementation of the various mechanisms according to the overall structure of the AOSDDL structure, the processing and test environments.