Software activities belong to different processes. Tailoring software processes aims to relate the operational software processes of an organization to the effective project. With the information technology industry moving ever faster, established positions are undergoing constant evolutionary change. The failure of a complex tailoring process of a management information system is reported. There is a need to adopt software processes that can operate under constant change. We propose to add a new dimension called continuous tailoring which is applied at any moment, to each software activity and for each actor. This process is validated in an immersion system intended for young postgraduates before they begin their careers in the software industry. Relationships between tailoring and improvement are considered.