While cloud-based BPM（Business Process Management） shows potentials of inherent scalability and expenditure reduction,such issues as user autonomy,privacy protection and efficiency have popped up as major concerns.U...While cloud-based BPM（Business Process Management） shows potentials of inherent scalability and expenditure reduction,such issues as user autonomy,privacy protection and efficiency have popped up as major concerns.Users may have their own rudimentary or even full-edged BPM systems,which may be embodied by local EAI systems,at their end,but still intend to make use of cloud-side infrastructure services and BPM capabilities,which may appear as PaaS（Platform-as-a-Service） services,at the same time.A whole business process may contain a number of non-compute-intensive activities,for which cloud computing is over-provision.Moreover,some users fear data leakage and loss of privacy if their sensitive data is processed in the cloud.This paper proposes and analyzes a novel architecture of cloud-based BPM,which supports user-end distribution of non-compute-intensive activities and sensitive data.An approach to optimal distribution of activities and data for synthetically utilizing both user-end and cloud-side resources is discussed.Experimental results show that with the help of suitable distribution schemes,data privacy can be satisfactorily protected,and resources on both sides can be utilized at lower cost.展开更多
笔式用户界面软件以其自然、高效的交互方式,在很多领域中有着广泛的应用.笔式用户界面软件具有以交互为中心、用户个性化需求高的特点,由此也决定了用户在软件设计中的主导地位.以用户为中心的设计的关键问题在于,如何使用户的思想如...笔式用户界面软件以其自然、高效的交互方式,在很多领域中有着广泛的应用.笔式用户界面软件具有以交互为中心、用户个性化需求高的特点,由此也决定了用户在软件设计中的主导地位.以用户为中心的设计的关键问题在于,如何使用户的思想如实地反映到设计中.通过建立笔式用户界面软件特征模型PUIDM(the domain model for pen-based user interface software),构造了一个连接用户与软件设计的平台.从上下文、软件实体、界面特征、体系结构等角度,对该模型的建立进行分析,并给出了相应的XML描述.在此基础上,描述了用户使用该模型进行软件设计的过程.实例表明,PUIDM能够正确引导用户进行设计,将用户意图充分地引入到软件设计和最终实现中,使软件满足可用性要求.展开更多
基金Supported by the National Basic Research 973 Program of China under Grant No.2007CB310805the National Natural Science Foundation of China under Grant Nos. 90412010,60970131 and 60903048+1 种基金the National High-Tech Research and Development 863 Program of China under Grant No.2006AA01A106the Beijing Natural Science Foundation under Grant No.4092046
文摘While cloud-based BPM（Business Process Management） shows potentials of inherent scalability and expenditure reduction,such issues as user autonomy,privacy protection and efficiency have popped up as major concerns.Users may have their own rudimentary or even full-edged BPM systems,which may be embodied by local EAI systems,at their end,but still intend to make use of cloud-side infrastructure services and BPM capabilities,which may appear as PaaS（Platform-as-a-Service） services,at the same time.A whole business process may contain a number of non-compute-intensive activities,for which cloud computing is over-provision.Moreover,some users fear data leakage and loss of privacy if their sensitive data is processed in the cloud.This paper proposes and analyzes a novel architecture of cloud-based BPM,which supports user-end distribution of non-compute-intensive activities and sensitive data.An approach to optimal distribution of activities and data for synthetically utilizing both user-end and cloud-side resources is discussed.Experimental results show that with the help of suitable distribution schemes,data privacy can be satisfactorily protected,and resources on both sides can be utilized at lower cost.
文摘笔式用户界面软件以其自然、高效的交互方式,在很多领域中有着广泛的应用.笔式用户界面软件具有以交互为中心、用户个性化需求高的特点,由此也决定了用户在软件设计中的主导地位.以用户为中心的设计的关键问题在于,如何使用户的思想如实地反映到设计中.通过建立笔式用户界面软件特征模型PUIDM(the domain model for pen-based user interface software),构造了一个连接用户与软件设计的平台.从上下文、软件实体、界面特征、体系结构等角度,对该模型的建立进行分析,并给出了相应的XML描述.在此基础上,描述了用户使用该模型进行软件设计的过程.实例表明,PUIDM能够正确引导用户进行设计,将用户意图充分地引入到软件设计和最终实现中,使软件满足可用性要求.
