Hints to Address Concurrency in Self-Managed Systems at the Architectural Level: A Case Study

摘要

Self-managed systems are able to perform changes by themselves on themselves during their execution due to variations occurred internally or in their execution environment. Current solutions for self-managed systems address one change at a time. In the real world, two or more changes may raise contemporaneously. Hence, they should be addressed concurrently and not sequentially. This would improve the overall performances of a system and would avoid delays in addressing changes. In this paper, we propose architecture level mechanisms to address concurrency in selfmanaged systems. We investigate available concurrency solutions used in non self-managed systems and adopt and adapt them for self-managed systems. We also introduce novel concepts such as: adaptation zone, adaptation need, and adaptation level. To apply and validate our solution a case study in a Web banking context has been developed.