Performance Analysis of Large Scale Information Systems

首席调查员关心的是在设计大型信息系统时出现的基本问题，特别是过去十年发展起来的图文电视和可视图文。本研究将侧重于将系统性能作为系统概念化、设计和实现的一个组成部分。它将考虑配置信息系统的方法，以便向大量用户提供良好和具有成本效益的性能。研究主题清单包括：o在局域网上传送类似图文电视的信息o使用本地用户终端存储来增强图文电视系统的性能o在可视图文系统中广播的最佳调度o有限连接时间的可视图文系统多数据库可视图文系统的性能

The Principal Investigator is concerned with basic questions that arise in the design of large-scale information systems, in particular, teletext and videotex, developed in the last decade. The study will focus on system performance as an integral part of system conceptualization, design, and implementation. It will consider methods by which an information system can be configured so as to provide good and cost-effective performance to a large number of users. The list of research topics include: o Teletext-like information delivery on local area networks o The use of local user terminal storage to enhance teletext system performance o Optimum scheduling of broadcast in a videotex system o Performance of limited-connection-time videotex systems o Videotex systems with multiple databases