What are the principles behind Value Engineering Change Proposal (VECP)? What is the distinction between design specifications and performance specifications?

Answer the questions below based on the information in chapter 14:

1) What are the principles behind Value Engineering Change Proposal (VECP)?

2) What is the distinction between design specifications and performance specifications?

3) When it comes to authority, why is it important to have clear lines of specific authority on a particular project

4) Discuss the strengths and weaknesses of at least three project delivery systems.