Business Rule Inclusion and Legacy Modernization through Binary Instrumentation

Business rule is essential for decision making, events, and process activities. It is used to capture knowledge and develop business systems requirements. Frequent changing scenarios in different aspects of business, demands corresponding runtime addition or modification of such logics to enterprises legacy system without disturbing their normal executions, functions and nature. This is difficult from reverse engineering point of view as redesigning such system with added features may not be cost-effective, reliable and feasible in all circumstances. One of the promising approaches to do so is plug in instrumentation. In this paper, we discuss the object code based aspects of dynamic binary instrumentation to add new business logics to organisations legacy system at runtime without disturbing operational tasks. We also discuss the merit and demerit of such plug-in.