Building Sustainable Software by Preemptive Architectural Design Using Tactic-Equipped Patterns

Sustainability of software architectures has gained increasing attention to cope with factors causing architectural changes such as requirements changes, technological changes, and changes in business strategies and goals. However, there has not been much work on architectural sustainability. In this paper, we present a novel approach for addressing architectural sustainability with respect to non-functional requirements changes through preemptive architectural designs built upon the combined use of architectural patterns and architectural tactics. The approach presented in this paper provides a strategic solution for practitioners to building a quality attribute into a chosen architectural pattern to proactively deal with the requirements changes of quality attribute, which may arise after the construction phase.