Shared Software Database

该项目的目标是开发使用广域网搜索和共享软件的技术。这将使软件重用超越库；为单个项目编写的程序不能直接使用，而是用作其他项目中类似程序的模板。首席调查员正在对软件数据库的索引和查询进行新的研究。索引信息必须自动生成，不需要程序创建者的额外工作。最初，他正在扩充现有的CASE工具，以生成此类索引信息。稍后的研究将整合用于软件分类的其他机制。该项目的另一个部分是为广泛分布的、自治的软件数据库开发一种分布式查询机制。这将包括自动取消查询等功能，这些查询会产生太多结果。一个帮助用户指定和改进查询的界面正在设计中。尽管这项工作的重点是共享计算机软件，但所开发的技术可能被证明在共享其他信息方面很有用，例如来自科学实验的数据或有限兴趣(因此未发表)的研究。

The objective of this project is to develop techniques for searching for and sharing software using wide-area networks. This will enable software reuse to go beyond libraries; a program written for a single project may not be used directly, but instead be used as a template for similar programs in other projects. The principal investigator is conducting new research into indexing and querying software databases. Indexing information must be generated automatically, with no extra effort by the program creator. Initially he is augmenting an existing CASE tool to generate such indexing information. Later research will integrate other mechanisms for categorizing software. Another part of the project is to develop a distributed query mechanism for widely distributed, autonomous, software databases. This will incorporate features such as automatically canceling queries which generate too many results. An interface which helps user specify and refine queries is being designed. Although the focus of this work is on sharing computer software, the techniques developed could prove useful in sharing other information, such as data from scientific experiments or limited interest (and therefore unpublished) studies.