Components for Decentralized Process-Centered Environments

以流程为中心的去中心化环境的组件

基本信息

批准号：
9301092
负责人：
Gail Kaiser
金额：
$ 21.7万
依托单位：
Columbia University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1993
资助国家：
美国
起止时间：
1993-09-01 至 1996-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9301092&HistoricalAwards=false
关键词：
Components Decentralized Process Centered Environments

项目摘要

A process is a partially ordered set of steps to be followed in developing a software system. Processes may vary across organizations and systems. A process-centered environment provides computer-aided support for a range of project-specific processes. The general goals of research in process-centered environments are to devise useful notations for specifying processes and to investigate ways in which environments may assist users in carrying out processes. The Marvel process-centered environment is tailored by a rule-based process model, where each rule defines a process step and states the condition for initiating the step and the result of finishing the step. The permitted sequencing among steps is implicit in their conditions and results. The environment enforces the specified process and assists users in satisfying the conditions of steps. Recent work has concentrated on concurrency control for teams of users, and on evolution of processes while they are in progress. Both are prerequisites for scaling up process-centered environments. This project addresses four problems; (1) translation of higher-level process modeling formalisms into rules for execution, (2) formal notations for coordination modeling and the interaction of corresponding concurrency control algorithms with process assistance mechanisms, (3) requirements placed on environment frameworks by process and coordination, and possible protocols for interfacing process and coordination components to a range of existing classes of frameworks, and (4) decentralized environment architectures that permits a degree of site autonomy for different process and coordination needs.

一个过程是开发软件系统时要遵循的部分订购的一组步骤。流程可能在组织和系统之间各不相同。以过程为中心的环境为一系列特定于项目的过程提供了计算机辅助的支持。以过程为中心的环境中的研究的一般目标是为指定过程设计有用的符号，并调查环境可以帮助用户执行流程的方式。以基于规则的过程模型来量身定制以漫威过程为中心的环境，其中每个规则都定义了一个过程步骤，并说明了启动步骤和完成步骤的结果的条件。步骤之间允许的测序在其条件和结果中隐含。环境强制执行指定的过程，并协助用户满足步骤条件。最近的工作集中在对用户团队的并发控制上，以及过程中的进化。两者都是扩展以过程为中心环境的先决条件。该项目解决了四个问题；（1）将高级流程形式主义建模为执行规则，（2）对协调建模的形式符号以及相应的并发控制算法与流程辅助机制的相互作用的形式符号，（3）通过过程和协调框架上的要求，（3）以及与一系列现有框架类别的接口过程和协调组件的可能协议，以及（4）分散的环境体系结构，允许一定程度的站点自主权满足不同的过程和协调需求。