Protective Wrapper Development: A Case Study

We have recently proposed a general approach to engineering protective wrappers as a means of detecting errors or unwanted behaviour in systems employing an OTS (Off-The-Shelf) item, and launching appropriate recovery actions. This paper presents results of a case study in protective wrapper development, using a Simulink model of a steam boiler system together with an OTS PID (Proportional, Integral and Derivative) controller. The protective wrappers are developed for the model of the system in such a way that they allow detection and tolerance of typical errors caused by unavailability of signals, violations of constraints, and oscillations.

• Type: Conference
• Year: 2003
• Where: ICCBSS
• Authors: Tom Anderson, Mei Feng, Steve Riddle, Alexander B. Romanovsky
• Keywords: Engineering Protective Wrappers, ICCBSS 2003, Protective Wrapper Development, Protective Wrappers