| 摘要: |
| 对环境的适应是软件保证其可信的重要手段.当应用场景超出开发阶段的预设时,软件的环境适应能力需要能够在线调整,以保证其行为和结果仍可符合用户预期.这一调整的前提是软件工程层面的高效支持机制.基于关注点分离原则和动态软件体系结构技术,提出了一种支持软件环境适应能力细粒度在线调整的构件模型ACOE(adaptive component model for open environment).ACOE 将软件环境适应能力中的感知、决策、执行等关注点封装为独立的构件和连接子,通过动态软件体系结构技术来支持它们的在线重配置,从而使第三方可在必要时通过有选择性的更新来调整适应能力.实现了支持ACOE 构件模型的容器原型,并通过实验验证了其有效性. |
| 关键词: 可信软件 演化 适应性软件 构件模型 动态软件体系结构 |
| DOI：10.3724/SP.J.1001.2011.03813 |
| 分类号: |
| 基金项目:国家自然科学基金(90818028); 国家重点基础研究发展计划(973)(2011CB302600); 国家杰出青年科学基金
(60625203) |
|
| Component Model Supporting Trustworthiness-Oriented Software Evolution |
|
DING Bo1, WANG Huai-Min1,2, SHI Dian-Xi1, LI Xiao1
|
|
1.School of Computer, National University of Defense Technology, Changsha 410073, China;2.National Defense Laboratory for Parallel and Distributed Processing, Changsha 410073, China
|
| Abstract: |
| Environment-Driven adaptation is an important means ensuring software integrity. Confronted with
scenarios not anticipated during the developmental stage, the predefined adaptability of the software should be adjusted to ensure that its behavior agree with the users’ expectation. The premise of this kind of adjustment are efficient software engineering mechanisms. Based on the principles of the Separation of Concerns and the Dynamic Software Architecture (DSA) technology, this paper proposes a component model named ACOE (adaptive component model for open environment) that supports the online fine-grained adjustment to software adaptability. ACOE encapsulates adaptation concerns, such as sensing, decision, and execution into components, and connectors, and then supports their dynamic configuration with the DSA technology. As a result, a third-party can adjust the adaptability by selectively upgrading it when necessary. An ACOE container prototype and experimental
applications are implemented to validate this approach. |
| Key words: trustworthy software evolution adaptive software component model dynamic software architecture |
