A systematic process to design product line architecture

Product Line Engineering is being accepted as a representative software reuse methodology by using core assets and product line architecture is known as a key element of core assets. However, current research on product line engineering has room to provide specific and detailed guidelines of designing product line architectures and reflecting variability in the architecture. In this paper, we present a reference model and a process to design the architecture with detailed instructions. Especially architectural variability is codified by describing decision model representing variation.