桂林理工大学学报
桂林理工大學學報
계림리공대학학보
Journal of Guilin University of Technology
2015年
3期
607-610
,共4页
服务组合%时序约束%定量时序兼容性%正态分布
服務組閤%時序約束%定量時序兼容性%正態分佈
복무조합%시서약속%정량시서겸용성%정태분포
service composition%temporal constraint%quantitative temporal compatibility%normal distribution
为了增强服务组合的QoS特性, 迫切需要在流程设计层面验证时序约束兼容性. 针对工作流中常见的纯顺序、 并发与选择结构, 估算了其概率分布, 进而提出了一种基于概率的、 定量检验服务组合的时序兼容性的方法. 通过案例分析与性能测试验证了其有效性.
為瞭增彊服務組閤的QoS特性, 迫切需要在流程設計層麵驗證時序約束兼容性. 針對工作流中常見的純順序、 併髮與選擇結構, 估算瞭其概率分佈, 進而提齣瞭一種基于概率的、 定量檢驗服務組閤的時序兼容性的方法. 通過案例分析與性能測試驗證瞭其有效性.
위료증강복무조합적QoS특성, 박절수요재류정설계층면험증시서약속겸용성. 침대공작류중상견적순순서、 병발여선택결구, 고산료기개솔분포, 진이제출료일충기우개솔적、 정량검험복무조합적시서겸용성적방법. 통과안례분석여성능측시험증료기유효성.
In order to enhance the quality of service composition, it is urgent to verify the compatibility under temporal constraints in the flow design.The existing methods have the following disadvantages.There are no knowledge of the probability distribution of atomic services, no quantitative validation of timed compatibility, and no support of concurrent and selection flow structures.For the pure sequence, concurrent and selection structures appeared frequently in a work flow, their probability distributions are estimated and a probability based approach is proposed to analyze timed compatibility for a composited service under temporal constraints . The effectiveness of methodology is validated through case analysis and performance testing.
