Question $4$

$20$ Marks

Develop a sequence diagram for the process of registering for a Membership and applying for a Loyalty Plan, where a Loyalty Plan includes discounted prices.

Note: The above guidelines are provided just as a help so that you can develop a good sequence diagram. You can imagine the remaining functionality yourself!

$4\mathrm{.}1$ Create instances $($objects$)$ for the classes involved and make sure

$8$ Marks to add and instance for the User Interface to start the process. Must have a minimum of $4$ objects $($including the User Interface instance$).$

$4\mathrm{.}2$ Create a minimum of $8$ messages and represent the message calls

$8$ Marks between all the objects. $2$ of the messages must be self$-$messages $($a message from the object to itself$).$

$4\mathrm{.}3$ Make sure the object lifelines and the activations are well $4$ Marks represented and clear.

Note: Assume that there are no complex interactions that need to be displayed. Hence the diagram can be based on the material learnt in Unit $6$ only. No need for "alt" or "opt" fragments.