针对服务化软件动态演化技术存在的需求变更及其影响范围难以预先推导、服务之间的行为相关性、服务变更或替换后难以保证系统内部和外部行为一致性等问题，从价值网络和生态系统的角度去研究软件服务系统的演化机理，建立完整的软件服务生态系统度量和评估体系，诱导软件服务生态系统合理演化。在此基础上，以轻量级的微服务架构为核心，研究微服务架构下适合软件服务演化的编程方法、模式与框架，完成演化服务的快速构建和更新、服务及其之间关系的动态调整、服务在线演化运行时管理等，为软件服务生态系统在线演化提供工具支撑。构建相应的原型系统，以验证和持续改进所提出的服务生态系统模型及相关理论，解决软件服务动态演化过程中涉及的服务关系、演化后变更的结果及其影响范围预测、服务系统内部和外部行为的一致性、服务平顺切换、服务演化需求发现等问题，以支持后续的软件服务持续迭代演化管理，实现软件服务持续正向迭代演化过程。

To solve the problems occurred in the dynamic evolution process of service-oriented software, e.g., how to predict the change of requirements and their influence range and how to determine the behavioral correlations between services as well as how to check the behavior consistency between internal and external services after service change or replacement, the evolution mechanism of software service systems will be studied on the perspective of value networks and ecosystems, so as to introduce a system of measurement and evaluation methodology of software service ecosystems to induce rational evolution of the ecosystems. On that basis, for the rapid construction and updating of evolution services, the dynamic adjustment of the services and their relationships, the programming frameworks, patterns and methods on demand of the evolution of software services will be developed on the lightweight micro-services architecture, which provide tool to support online evolution of software service ecosystem. Moreover, to solve the problem on the process of software service dynamic evolution, such as the service relationship analyzing, the evolutionary changes and their influence range predicting, the consistency of internal and external behaviors verifying, smooth handover of service managing and service evolution requirements discovering, the prototype system will be constructed to verify and continuously improve the proposed service ecosystem model and methodology. In brief, these works will support the continuous iteration and evolutionary management of software service and achieve a continuous and positive iterative evolution process of software services.