Which of the following is not a major subsystem part providing an opportunity for system design controls A. data base B. model base C. both (a) and (b) D. neither (a) nor (b) E. None of the above

The correct answer is C. both (a) and (b).

A data base is a collection of data that is organized so that it can be easily accessed, managed, and updated. A model base is a collection of models that can be used to simulate the behavior of a system. Both data bases and model bases are important parts of a system design, but they do not provide an opportunity for system design controls.

System design controls are mechanisms that are used to ensure that a system meets its requirements. They can be implemented in the form of policies, procedures, or tools.

• Requirements management: This involves ensuring that the system requirements are complete, consistent, and feasible.
• Configuration management: This involves tracking changes to the system and ensuring that they are properly documented.
• Testing: This involves verifying that the system meets its requirements.
• Quality assurance: This involves ensuring that the system is developed and maintained in a quality manner.

Data bases and model bases can be used to support system design controls, but they are not themselves controls.