(Solved): Draw a simple class diagram for the following cases by showing the relevant classes, attributes, op ...

Draw a simple class diagram for the following cases by showing the relevant classes, attributes, operations, and relationships. If you believe that you need to make additional assumptions, clearly state them. a) A student, whose attributes include student name, address, phone and age, may engage in multiple campus-based activities. The university keeps track of the number of years a student has participated in a specific activity and, at the end of each academic year, mails an activity report to the student showing his participation in various activities. b) A company has a number of employees. The attributes of Employee include employee Id, name, address, and birthdate. The company also has several projects. Attributes of Project include project Name and start Date. Each employee may be assigned to one or more projects, and a project must have at least one employee assigned. An employees salary rate varies by project, and the company wishes to record the applicable salary rate for each employee when assigned to a particular project. At the end of each month, the company mails a cheque to each employee who has worked on a project during that month. The cheque amount is based on the salary rate and the hours logged for each project assigned to the employee. (20 marks)