Engineering Databases Supporting Dynamic Extensibility and Partial Integrity

该提案旨在正式指定并实现一个模块化的、可扩展的后端工程数据库，以支持开放式应用程序集之间的数据转换。 该数据模型及其原型实现的独特之处在于：（1）动态可扩展性，允许添加新的应用程序 在整个设计过程中， 产品生命周期，期望新的应用程序接口可以由用户而不是数据库管理员来实现，（2）以部分完整性的显式监视和管理的形式支持设计的迭代性质，（3）根据工程设计的需要定制的更丰富的数据模型， 减少先进CAD系统的当前功能与当前数据库之间的阻抗失配。(4)一种新的应用程序之间的转换模型，它不依赖于中性文件方法，而是将转换视为类型网络上的一组转换。 将制定和正式确定支持这些能力的概念。 原型实现将是通用的，支持各种工程设计领域。 在数据库上进行测试的应用程序将来自土木和机械工程设计研究文献。 原型实现将被开发为易于移植，并提供给其他研究小组。

This proposal is for work to formally specify and then implement a modular, extensible backend engineering database supporting data translation between an open-ended set of applications. The unique features of the data model and its prototype implementation are: (1) dynamic extensibility, allowing new applications to be added throughout the process of design, and later throughout the product life cycle, with expectations that new applications interfaces can be implemented by users, not database administrators, (2) support for the iterative nature of design, in the form of explicit monitoring and management of partial integrity, (3) a richer data model tailored to the needs of engineering design, reducing the impedance mismatch between the current functionality of advanced CAD systems and current databases. (4) a new model of translation between applications, that does not rely on a neutral file approach, but rather treats translation as a set of transformations over a type network. The concepts supporting these capabilities will be developed and formalized. The prototype implementation will be general, supporting a variety of engineering design areas. Applications to be tested on top of the database will be drawn from civil and mechanical engineering design research literature. The prototype implementation will be developed to be easily portable, and made available to other research groups.