The validation of computer-based models in engineering: some lessons from computer science

Murray-Smith, D.J. (2001) The validation of computer-based models in engineering: some lessons from computer science. Acta Polytechnica, 41(4/5), pp. 45-48.

Abstract

Questions of the validity of computer-based models and the formal processes of model testing, involving internal verification and external validation, are usually given only passing attention in engineering reports and in technical publications. However, such models frequently provide a basis for analysis methods, design calculations or real-time decision making in complex engineering systems. This paper reviews techniques used for external validation of computer-based models and contrasts the somewhat casual approach which is usually adopted in this filed with the more formal approach in software testing and documentation recommended for large software projects. Both activities require intimate knowledge of the intended application, a systematic approach and considerable expertise and ingenuity in the design of tests. It is concluded that engineering degree courses dealing with modelling techniques and computer simulation should put more emphasis on model limitations, testing and validation.

• Item Type: Articles
• Keywords: computer-based models, simulation, model limitations, software testing, external validation, software engineering tools
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Murray-Smith, Professor David
• Authors: Murray-Smith, D.J.
• Subjects: Q Science > QA Mathematics > QA76 Computer software; T Technology > TA Engineering (General). Civil engineering (General)
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Acta Polytechnica
• Publisher: Czech Technical University in Prague
• ISSN: 1210-2709