need complete answers for the following questions from the Software Engineering Course , Thanks

. 1. How are system boundaries decided and when should these decisions be made? b. The model-driven architecture(MDA) recommends that three types of abstract system model should be produced. Explain these abstract system models. Q2. a. Suggest an architecture for a system such as (iTunes) that is used to sell and distribute music on the internet. What architectural patterns are the basis for your proposed architecture? 6. The choice of architectural style and structure should depend on nonfunctional requirements of the system. Explain Why? Q3. a. What is the aim of configuration management? Explain the four fundamental configuration management activities. b. Assume that the Mentcare system is being developed using an object-oriented approach. Draw a use case dlagram showing at least five possible use cases for this system. Q4. a. You can see that impact analysis is an important sub process in the software evolution process. Using a diagram, Suggest what activities might be involved in change. impact analysis. b. Why is it expensive and risky to replace legacy systems with new system? 95. Deferentiate. a. Vecification and validation b. Reengineering and retactoring c. While box testing and black box testing 06. a. Write the tahular description of the tranaler dats use case Medical receptionist Patient record system b. Describe the Facade design pattem. Give an example to show when it would be suitable to use this pattern -2impriesiskivinu-rove