Reference no: EM133549083

Task 1: Operational pattern

In this task you should use the example solution of the sequence diagram and System Class model to make an operation pattern for the operation bookClass from the Customer point of view. The sample solution from assign 3 includes diagrams you need for this assignment it is linked on the assignment 3 Canvas page and with this assignment. Make sure your Operational pattern is based on the given sample solution!

You can assume that the customer with the email and the course with the courseID exists in the system.

You are allowed to change the System Class Model and add information into it, if the information you add will help you with defining your operation.

You can either create the operational pattern:
• by using the LaTeX template
• by handwriting on the attached document and then scanning the document (the submission should be a PDF)
• by using Word (or whatever you prefer)
Look at the given sequence diagram to see the different alternatives which you have to create in your operational pattern and for the inputs/arguments of the operation.

You are allowed to add associations to the SCM if you feel you need them (if you make any changes to the SCM you need to add the changed SCM to your submission).

Task 2: Implementation

Use your solution from assignment 3 as basis for your solution. Or, if it was not good, you can of course do it over again. Some hints:
• Your Main method should be in your Main.java class

• Your Main should create the control instances and work with them
• Make a bunch of objects statically, add them to the appropriate controls and also link some customers to courses etc.. (This is the initial system state that you start of with.)
• Make sure the implementation is consistent to the sample solution for the SCM or to your changed SCM.

You should now check that your already implemented method bookClass does what the Operational Pattern does. So now you need to actually make a new link between a Customer and Course.

In your Main method, you should test the method, e.g. in your Main method controlClassInstance .bookCourse (.....) , which should then return an appropriate message back and link the customer and course.

Your Main method should again test all the different cases and make sure to have a good printed output (you can think about including display methods for your different objects).

Again: The implementation needs to adhere to your design and will only be graded if it does. Make sure we can run it through the command line as in assignment 2 (javac Main.java, java Main).

Make an object view of your system. The "before" state (initial system state) should be all in black. The things that will be added after your Main method ran should be red.