In the software product development,a special attention should be paid to the usability of the product while realizing its functionality. Usability pertains to the user's view of the quality of a pro-duct ,which i...In the software product development,a special attention should be paid to the usability of the product while realizing its functionality. Usability pertains to the user's view of the quality of a pro-duct ,which is the synonym of the quality in use. It is one of the critical factors to the success of the pro-duct. In order to improve the usability of software products ,we must first make usability visible. Thus a kind of objective ,uniform and quantitative measurements for usability is in great need. The Common In-dustry Format for usability testing is a standardized test for software usability,which is also called CIF test for short. It is the main contribution of the IUSR project initiated by the US National Institute of Standards and Technology (NIST). The CIF Test is based on a carefully designed evaluation procedure and an appropriate metrics. It enables suppliers and purchasers of software products measure the usabil-ity of the products in an objective and quantitative way,therefore promote the emphasis on products'usability. After giving the concept of software usability,this paper describes the IUSR project and its main contribution-Common Industrial Format for usability testing. The authors' experiences in using the standard are discussed finally.展开更多
提出了一个基于KPN(Kahn Process Network)的动态服务组装模型,目的是减少动态服务组装的不可预见性以及服务不匹配现象,提高动态组装的成功率。该组装模型采用KPN及相应的KPN调度策略对服务之间的动态交互进行建模。介绍了该组装模型...提出了一个基于KPN(Kahn Process Network)的动态服务组装模型,目的是减少动态服务组装的不可预见性以及服务不匹配现象,提高动态组装的成功率。该组装模型采用KPN及相应的KPN调度策略对服务之间的动态交互进行建模。介绍了该组装模型的数据流建模及调度策略,并以一个船舶信息查询系统为例,介绍了该组装模型在实际中的应用。展开更多
呈现了一个基于KPN(kahn process network)的服务协同组装支持环境(CSCE)。KPN是一个基于数据流的协同计算模型,用于描述通过数据流进行通信的一系列协作过程。在CSCE协同组装环境中,KPN用于建模服务及服务之间的动态交互,为应用系统的...呈现了一个基于KPN(kahn process network)的服务协同组装支持环境(CSCE)。KPN是一个基于数据流的协同计算模型,用于描述通过数据流进行通信的一系列协作过程。在CSCE协同组装环境中,KPN用于建模服务及服务之间的动态交互,为应用系统的组装提供可视化的用户接口。将KPN应用于服务组装,目的是减少服务组装的不可预见性,提高服务组装的成功率。介绍了基于KPN的服务组装基本思想,给出了CSCE的体系结构,详细描述了CSCE各协作部件的基本功能。展开更多
文摘In the software product development,a special attention should be paid to the usability of the product while realizing its functionality. Usability pertains to the user's view of the quality of a pro-duct ,which is the synonym of the quality in use. It is one of the critical factors to the success of the pro-duct. In order to improve the usability of software products ,we must first make usability visible. Thus a kind of objective ,uniform and quantitative measurements for usability is in great need. The Common In-dustry Format for usability testing is a standardized test for software usability,which is also called CIF test for short. It is the main contribution of the IUSR project initiated by the US National Institute of Standards and Technology (NIST). The CIF Test is based on a carefully designed evaluation procedure and an appropriate metrics. It enables suppliers and purchasers of software products measure the usabil-ity of the products in an objective and quantitative way,therefore promote the emphasis on products'usability. After giving the concept of software usability,this paper describes the IUSR project and its main contribution-Common Industrial Format for usability testing. The authors' experiences in using the standard are discussed finally.
基金国家自然科学基金(the National Natural Science Foundation of China under Grant No.60672031)辽宁省自然科学基金(the Natural Science Foundation of Liaoning Province of China under Grant No.20072142)
文摘提出了一个基于KPN(Kahn Process Network)的动态服务组装模型,目的是减少动态服务组装的不可预见性以及服务不匹配现象,提高动态组装的成功率。该组装模型采用KPN及相应的KPN调度策略对服务之间的动态交互进行建模。介绍了该组装模型的数据流建模及调度策略,并以一个船舶信息查询系统为例,介绍了该组装模型在实际中的应用。
文摘呈现了一个基于KPN(kahn process network)的服务协同组装支持环境(CSCE)。KPN是一个基于数据流的协同计算模型,用于描述通过数据流进行通信的一系列协作过程。在CSCE协同组装环境中,KPN用于建模服务及服务之间的动态交互,为应用系统的组装提供可视化的用户接口。将KPN应用于服务组装,目的是减少服务组装的不可预见性,提高服务组装的成功率。介绍了基于KPN的服务组装基本思想,给出了CSCE的体系结构,详细描述了CSCE各协作部件的基本功能。
