ITSS 4330 - System Analysis and Design: Fall 2018 Assignment 2: Object Concepts (30 points) Due on September 20, 2018 by 6:59 pm Consider the following scenario and then answer the corresponding questions You are all familiar with the elearning platform. This platform provides various features to students and instructors. Review the features that support the processes of managing grades and managing assignments (posting, collecting, grading). Spend some time within eLearning reviewing these features from a student perspective and an instructor perspective. Think about the data required to manage these features (e.g. assignment name, point value, submission date). Based on your review complete the following questions: Identify at least 3 classes that could be part of the elearning information system. For each class identify at least 5 attributes and 2 methods. (9 pts) Provide a one-sentence description of the task accomplished by the methods you have identified in the previous step. (3 pts) For each of the methods identified in question 1, list any arguments (data) required to perform the method. (3 pts) For each of the classes you have identified, state its interface. (3 pts) Whenever an assignment is added, eLearning will increase the total number of points (sum of all assignments) in the gradebook for that course. How will you model the operation of increasing the total number of points? Will this be a public or private operation? Explain your reasoning briefly. (6 pts) Explain the concept of polymorphism using an example in the elearning context. (6 pts) 1. 2. 3. 4. 5. 6