基于Petri网的工作流优化分析

工作流管理技术是实现企业业务过程重组、过程管理与过程自动化的核心技术。在工作流参考模型中,工作流验证和优化是过程定义工具的重要组成部分。在综述相关研究论文和经典Petri网理论的基础上,提出了基于Petri网的工作流合理性验证算法和过程优化算法。最后通过保险索赔过程的优化实例,验证了工作流优化算法的有效性。     

Managing Perpetual Access

ABSTRACT

Libraries are committed to long-term access to the scholarly record in published journals. The transition from print to online format has presented numerous challenges for libraries. While many publishers provide some form of post-cancellation or perpetual access to subscribed journals, libraries sometimes find it difficult to ensure that access is available to users. Language regarding perpetual access can be vague in the license agreements libraries sign with publishers. Even when perpetual access is available, libraries may lack the staff, tools, or workflows needed to review and confirm access. Examples of how libraries have addressed these challenges are provided.     

Petri网在旅游管理系统中的应用

随着旅游事业的不断发展,旅游业逐渐成为一些地区财政收入的主要来源.利用Petri网工作流建模方法,对旅游管理系统进行建模,并利用Petri网对其进行分析,实现旅游管理自动化的业务过程模型.     

Identifying and Troubleshooting Link-Resolution Issues with ILL Data

Troubleshooting when a link resolver goes wrong can be difficult as it usually relies on the user to report the problem. Using data on interlibrary loan requests that have been cancelled because the materials are available online is one way that libraries can examine where link resolvers may be failing. For the 2012/2013 school year, the Samford University Library looked at this cancelled interlibrary loan request data to determine where their new link resolver and knowledgebase needed further customization to improve the user experience. This process not only identified a number of problems all along the link resolution chain, but it also put in place an ongoing process for identifying and troubleshooting link resolution issues in the future.     

Please wait until I am done! Longitudinal effects of work interruptions on employee well-being

ABSTRACT

Work interruptions are contemporary job stressors that occur frequently in the workplace. Theories on work interruptions and the stressor–strain relationship over time suggest that work interruptions should have a lagged negative effect on well-being. However, we argue that continued changes in work interruptions may also be important for employees’ well-being. We investigated the mid- and long-term effects of work interruptions on employee job satisfaction and psychosomatic complaints across two studies (Study 1: N?=?415, four waves over five years; Study 2: N?=?663, five waves over eight months). Using latent growth modelling, we predicted job satisfaction and psychosomatic complaints with respect to the level of, and changes in, interruptions. Controlling for initial well-being, we found that the mean levels (intercepts) of work interruptions had negative effects on later well-being in Study 1, but not in Study 2. However, increases in interruptions over time (slopes) predicted later well-being consistently. An analysis on reversed effects revealed that only the initial level of psychosomatic complaints positively predicted work interruptions. The studies underscore not only the importance of interruptions for well-being over time in general, but also the particular importance of exposure to increases in interruptions.     

基于工作流的期刊编辑流程管理设计

文章使用工作流方法对期刊编辑流程进行了分解和分析,建立基于工作流的期刊编辑流程管理模型,这种模型将业务流程的设计从工作流工程中模块化出来独立进行,使得工作内容与流程处理逻辑是分离的,从而提高整个办公系统的适应能力。依据此模型设计的计算机办公应用平台可以提高期刊编辑工作的效率和期刊出版的质量。     

基于J2EE与JBPM的教材管理系统的研究与应用

教材管理是高校教务管理中的一个重要环节,它涉及到高校的每一位师生,因其数据量较大,管理工作繁琐,高校教材管理的合理与否直接体现了教务部门的工作效率和工作质量。为了实现教材管理系统的业务过程自动化,提高系统业务流程的处理能力,在高校教材管理系统设计中引入工作流的思想,借助JBPM工作流管理系统的实现,设计了教材的征报,教材的中购及教材的采购环节上需要逐级审批的业务流程,实现业务逻辑和流程控制逻辑的分离,使整个系统的流程更为清晰,提出了一个基于J2EE与JBPM的教务管理系统的实现方案,并对相关技术进行研究。     

Working‐class mothers’ school involvement: a class‐specific maternal ideal?

Recent ideological shifts, along with budgeting constraints, have made parental involvement in the schooling process necessary. Such expectations have increased the toll on working‐class mothers, who now have to assume responsibility in three time‐consuming areas: child care at home, school involvement and labour market participation. In analysing how mothers deal with this threefold expectation, research has focused on class‐specific maternal ideals and practices, but rarely directed systematic attention to how these concurrent expectations shape the maternal ideals they embrace. Moreover, few studies have examined how mothers’ maternal ideals shape their employment interruptions. The current paper considers how working‐class mothers rationalize the maternal ideals they embrace with regard to school involvement and examines how they negotiate them vis‐à‐vis other possible maternal ideals. Interviews of 48 Israeli low‐income mothers reveal that educational success is consensually perceived as critical for maximizing life chances and that this understanding evolved from the gradual realization that school involvement through extensive mothering – where women rely on others to meet their children's schooling needs – must be replaced by school involvement through intensive mothering – namely, personal presence‐based nurturing. We draw some implications relevant to the debate over class‐based maternal ideals.     

工作流管理系统的体系结构研究

目前对于WFMS体系结构的研究主要集中在具体的应用上,尚不存在一种完全通用的WFMS体系结构。虽然工作流管理联盟为此制定了标准,但它所关注的仅仅是抽象的顶层结构,并没有涉及到底层模块的详细设计。本文采用自上而下的分层设计策略,提出了一种完备的通用WFMS体系结构。我们把WFMS分解为三个主要部分:设计模块、服务器模块和客户端模块,并分别对三者进行了详细论述。除此之外,为解决分布异构环境中的系统功能扩展问题,我们还设计了扩展模块;为克服工作流客户端的不断移动所产生的消极影响,我们使WFMS与其他平台之间的接口实现了标准化,从而保证了WFMS具有很好的灵活性和可扩展性。