Towards an Agile Concern-Driven Development Process

This paper proposes an Agile Concern-Driven Development (Agile CDD) process, a software development process that uses concerns as its primary artifact and applies agile practices. Whereas classical Model-Driven Engineering (MDE) methodologies focus on models that are built from scratch with little support for reuse, Agile CDD is a reuse-focused development process in which an application is built incrementally by repeatedly reusing other existing concerns. In Agile CDD, a modeler would use a modelling language that is appropriate for the current development phase and for the problem domain. Model transformations would then be applied to produce the initial set of models for the next phase. The process will continue until an execute model is produced. In each phase, the modeller should consult a repository of reusable concerns to identify and reuse concerns. Changing requirements are welcome and incomplete implementations are moved to the next iteration by delaying design decisions.