Final answer:
The correct answer is 4) Validation elements.
Step-by-step explanation:
The correct answer is 4) Validation elements. When developing a configuration management system, the four important elements that should exist are:
- Component elements - these are the physical and software components that make up the system.
- Human elements - these include the people who will be using the system and their roles and responsibilities.
- Process elements - these are the procedures and workflows that govern how the system is used and maintained.
Validation elements, on the other hand, are used to evaluate the quality of a design, not specifically to develop a configuration management system.