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1.
Manfred Reichert Peter Dadam und Thomas Bauer 《Informatik - Forschung und Entwicklung》2004,18(3-4):132-151
Zusammenfassung. Workflow management systems (WfMS) offer a promising technology for the realization of process-centered application systems. A deficiency of existing WfMS is their inadequate support for dealing with exceptional deviations from the standard procedure. In the ADEPT project, therefore, we have developed advanced concepts for workflow modeling and execution, which aim at the increase of flexibility in WfMS. On the one hand we allow workflow designers to model exceptional execution paths already at buildtime provided that these deviations are known in advance. On the other hand authorized users may dynamically deviate from the pre-modeled workflow at runtime as well in order to deal with unforeseen events. In this paper, we focus on forward and backward jumps needed in this context. We describe sophisticated modeling concepts for capturing deviations in workflow models already at buildtime, and we show how forward and backward jumps (of different semantics) can be correctly applied in an ad-hoc manner during runtime as well. We work out basic requirements, facilities, and limitations arising in this context. Our experiences with applications from different domains have shown that the developed concepts will form a key part of process flexibility in process-centered information systems.Received: 6 October 2002, Accepted: 8 January 2003, This paper is a revised and extended version of [40]. The described work was partially performed in the research project Scalability in Adaptive Workflow Management Systems funded by the Deutsche Forschungsgemeinschaft (DFG). 相似文献
2.
设计了一种将工作流技术与CADAL各数字化工具有效结合,并使CADAL电子书制作业务流程控制进入自动化管理阶段的系统框架,其同时具有可扩展性,支持多用途、多格式的电子书制作。 相似文献
3.
开发图书馆信息系统的新模式 总被引：1，自引：0，他引：1
吴隆基 《现代图书情报技术》1997,13(4):34-38
本文阐述了新技术在整个现代化图书馆信息系统开发过程中所占的重要地位和作用。为彻底改变我国图书馆界在现代化信息系统开发上的落后局面, 迎头赶上世界先进水平, 本文提出新的构想, 并给出了具体的实现模式。 相似文献
4.
Håkan Lövblad 《Archival Science》2003,3(2):131-155
The contextual approach gives the impression that we are moving into the 21st century with three competing scientific traditions
of interpretation. Another understanding is the systemic view, which indicates a paradigm with complementing traditions of
interpretation, depending on ontological level. The paradigm of archival science is, like that of many other sciences, influenced
by positivism, systems theory and hermeneutics. The relevance of the paradigm depends on personal beliefs. The hermeneutic
understanding of archival science emphasizes the context and deconstructs central concepts. Hermeneutics emphasizes the influence
of conceptual changes and technological advances on perception. Hermeneutics stresses the need for a socio-cultural and historical
orientation of archival science. The positivistic tradition is coloured by the myths about an ideal science. This is reflected
firstly in the analogy comparing archives with nature, and secondly in the deductive method. Positivism is instrumental in
its demands for distinct definitions of concepts and its insistence on the record as the basis of archival science. The flexibility
of systems theory highlights the complex relations between context and record. Systems theory can, at its best, serve as a
meeting-place for researchers, archivists and users and accordingly form the basis for new knowledge and theory formation.
Systems theory enables a materialistic/dialectic epistemology based in reality and inspired by other relevant sciences. The
result may be the foundation of a systemic-functionalist archival science with activities, records creation and evidential
values in focus. 相似文献
5.
作为全国首批国家示范性高等职业院校和广东省一流高职院校建设计划立项建设单位之一的广州番禺职业技术学院,伴随着智慧校园的建设,从文档一体化到数据档案一体化,一方面,将档案管理渗透到教学、科研、管理等业务活动中,另一方面,将归档流程写入业务环节,通过更新观念、规则前置、协同治理的方式将档案工作深度融入学校信息化整体进程,并结合自身实践,提出了高校业务系统数据电子化归档的具体思路和实现路径。 相似文献
6.
基于内容管理的数字图书馆模型探讨 总被引：5，自引：0，他引：5
简要描述内容管理技术的概念及功能,提出将内容管理引入数字图书馆中,构建基于内容管理的数字图书馆模型,并重点论述该模型的主要组成部分,包括4个业务系统(收集系统、管理系统、发布系统、工作流系统)和两个存储系统(元数据仓储系统、内客存储系统)。 相似文献
7.
一方面,外文期刊在各个高校图书馆的地位十分重要;另一方面,外文期刊利用率却相对较低。针对这一客观现状,本文提出了有效的应对措施和建议。 相似文献
8.
从服务的角度提出基于语义网格的数字图书馆按需服务系统的架构,基于该架构探讨以下问题:数字图书馆网格平台上的分布式服务资源的组织管理与监控、根据用户需求的服务建模、大规模网络环境中的按需服务组合研究等。提出基于业务流程执行语言(BPEL)描述网格工作流,并采用WSMO为网格构建语义环境。设计基于WSMO的数字图书馆语义网格服务架构,采用WSMO创建领域本体,进行项目的WSMO 4元素设计,并给出基于WSMO的语义网格平台实施方案。 相似文献
9.
Beverly Serrell 《Curator: The Museum Journal》2002,45(1):50-64
Abstract Data from the Women's Health summative evaluation video study prompted a comparison with similar data for other videos in exhibitions. Values for attraction power, holding time, and holding power were compiled in a database of 45 video titles. On average, 32 percent of the visitors are attracted to videos, and the average time spent watching is 137 seconds. An attraction power of more than 60 percent was exceptional. On average, people watched more than one‐third of the total length of videos, but less than one half. A holding power of more than .70 was exceptional. Once a video has attracted people's attention, it does not always hold it. Visitors are constantly tempted to move to another exhibit element, looking for what's next. One cannot assume that introductory videos will be watched thoroughly by the majority of visitors. This has implications for introductory videos that are expected to teach visitors concepts and vocabulary necessary to understand the rest of the exhibition or a main message that ties everything together. Using these data as a guideline, we can realistically gauge what levels of use are possible, and what levels of success, as measured by visitors' attention, can be anticipated. 相似文献
10.
中国传播学跨学科研究的反思 总被引：1，自引：0，他引：1
我国的传播学跨学科研究取得了不少有价值的成果,但有一些研究者简单地把传播学的概念和相关学科结合,研究泛化、浅层次化、实用化特征明显,冲淡了传播学本身的学术构架和理论话语。 相似文献
11.
E—science关注数字环境下的科研活动,然而随着生物医学大数据的爆发,数据密集型科学研究为e·Science~来了新的挑战。科学工作流通过形式化科学计算的流程,支持在一个专门的程序环境下自动协调多任务多步骤的处理,从而减少科研投入,提高科研效率。文章首先归纳筑总结了科学工作流的相关定义,然后分析了当前主流的科学工作流系统,提出科学工作流处理如何应对密集的生物医学数据,并基于Taverna开展了生物医学领域的科学工作流实验。最后总结了科学工作流当前的研究现状和存在的一些问题。 相似文献
12.
科技书刊数字用法的规范化问题 总被引：4，自引：2，他引：2
在分析科技书刊数字用法现状与存在问题的基础上,提出了科技书刊数字使用的科学性、简单性、系统性、习惯性和灵活性几个原则,并对目前尚有异议的几个数字的用法问题进行了讨论. 相似文献
13.
本文通过对于中国优秀动画作品中所蕴含的传统美学意识的梳理,动画作品中文化观念有效传达的个案分析,围绕动画作品鲜明民族特色的构建这一主旨,论述了在新技术条件下,重新构建和审视造型语言的风格化,文化价值的承载等要素对于当前国产动画作品的重要意义。 相似文献
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15.
[目的/意义]提出读者数据利用框架,以有助于引导图书馆更规范地对读者数据进行系统的收集、整理、保存和挖掘,实现其增值利用。[方法/过程]引入数据监管和基于数据生命周期的数据服务拓展理念,建立基于生命周期的读者数据监管框架,并基于此框架,以《2017年北京大学阅读报告》为例,分析如何面向图书馆和读者进行读者数据监管。[结果/结论]读者数据监管一方面可以帮助图书馆明确读者来访及借书规律、核心读者群体、资源利用情况,合理优化各类资源和服务;另一方面通过向读者推荐阅读资源和服务,帮助读者提高自身阅读质量,使其充分地利用图书馆,从而为读者数据监管和增值利用的规范化、深入化发展提供有益参考。 相似文献
16.
Carla P. Wale 《Legal Reference Services Quarterly》2013,32(4):310-331
Integrated library systems (ILSs) have been fundamental to library workflow in both technical services and public services for decades. However, many of the proprietary ILSs currently on the market do not provide law libraries with the flexibility and adaptability necessary to keep pace with advances in technology. Some law libraries are considering abandoning proprietary ILSs and implementing one of the nascent open source ILSs that have sprung up in the last few years. As the lines blur between hardware and software, many organizations are trading in-house information technology infrastructure and personnel for full-service cloud hosting. This article examines these trends for those contemplating a move to an open source ILS and/or cloud computing. 相似文献
17.
图书馆管理制度的精准化、系统化与管理和服务的人性化二者似乎存在着难以兼顾的尴尬。一方面,企盼管理制度一劳永逸,另一方面,渴望管理人性化复归。立足现实,对图书馆制度、管理与服务的人性化作了较详细的研究：①图书馆制度人性化构建。②图书馆人员管理人性化。③图书馆服务人性化。参考文献6。 相似文献
18.
《Microprocessing and Microprogramming》1994,40(2-3):103-115
The Virtuoso programming system is a real-time programming framework that offers the same high level API across all target platforms from single processor to multiprocessor systems. A very fast nanokernel that manages a set of light context processes is at the heart of the system. These nanokernel processes combine the speed of an interrupt Service Routine with the flexibility of a task and reduce considerably the latency of the application. 相似文献
19.
我国高校校内文献资源利用存在藏而难用、流通不便、封闭保守、闲置浪费和共享不足的问题,主要源于共享意识淡薄、管理制度滞后和流通渠道不畅。要实现校内文献资源的充分共享,必须转变思想观念、加强制度建设和完善流通渠道。 相似文献