1. One of the main challenges Engineering facing today is the requirement of most systems to workwith a multitude of homogenous systems
2.‘Legacy systems’ are custom developed systems for the legal domain
3.does not wear-out in the traditional sense of the term, but does tend to deteriorate as it evolves
4.Since is essentially ‘intangible’ it is relatively easy to manage projects With the advent of component based assembly, we find that onlyless than 20% of today’s is still custom built