Reusable project-specific software for industrial control

The paper describes a methodology which enables non-software-specialist engineers to specify, design and implement reusable project-specific software for process engineering monitoring and control systems using a suitable real time expert-system. The software, running under a run-time version of the expert-system, is independent of the operating-system software. The inevitable errors and difficulties which normally attend subcontracting can thus be avoided with considerable advantage to integrity, speed of development and project-management.