Topic: Making the system operational Submission: Five minutes before the end of tutorial. Instructions: Form a group with another student and discuss the questions given in this document. After the discussion each student answers the questions individually in their own words. Every student must upload the answer file on Moodle individually. 1. What activities are involved during implementation and deployment process? 2. What is the purpose of unit testing? Who performs it? How is the test data prepared? 3. What is a source code control system? Why is such a system necessary when multiple programmers build a program or system? 4. What distinguishes integration testing from system testing? What kinds of tests can be included in system testing? 5. Briefly describe direct, parallel, and phased deployments. What are the advantages and disadvantages of each deployment approach