About Express Engine

Express Engine is an ANSI Common Lisp based project to support:

• EXPRESS (ISO 10303-11) information model schema development and data population validation
• EXPRESS-X (ISO 10303-14) map and view development
• EXPRESS-X map and view execution environment

Express Engine has now added a Repository for Express and Express-X testcases.

Express Engine will consist of serveral components:

• Express Engine Kernel Library
• Express Engine GUI

The Kernel Library provides support for

• manipulating Express schemas
• using EXPRESS (ISO 10303-11) schemas to validate data populations
• manipulating the data populations
• using EXPRESS-X (ISO 10303-14) to transform data populations from one schema to another