Abstract:

In the selfadaptive control process of model-driven software adaption, the actions of monitoring,analyzing,planning and executing are based on the shared knowledge model.For the convenience of knowledge models’maintaining and reusing, highly abstract requirement models are usually used to represent the knowledge.In order to model the adaptive requirements of software and to solve the problem that traditional Tropos and its extended methods cannot model the software adaptive requirements to exceptional events,we propose the Tropos+ which can monitor and deal with context changes and exception events.Base on Tropos+, we present a requirement model-driven software selfadaption method.Finally, the process of software self-adaption based on the proposed method is illustrated by an example.

Key words: self-adaptive software;requirement model;adaptive control process