Discussion Board

*** NOTE: To receive full credit on your submission, you MUST use Gane and Sarson notation and an appropriate charting tool (ex. LucidChart.com, Draw.io). Your submitted diagrams should look like something you could place in a professional document. ***

!!! DFD Hierarchy is not universally defined. For the purposes of this assignmet, Context-level and Level-0 Diagrams are different diagrams.

Refer to the DFD PowerPoint for my expectations:  007_DFD_v2.pptx

This week you will learn/have learned the concepts of Data Flow Diagrams (DFD). The DFDs you create should follow the guidelines from chapter 5 (Figures 5-3 and 5-15 provide good examples of context diagrams and figures 5-3 and 5-17 are good examples of level 0 DFDs). Be sure to state all assumptions you make in creating the DFDs.

Create two DFDs, a Context-level and Level-0, for the health club membership system described below. In your discussion, please talk about why you deisgned your diagrams the way you did:

Problem: 

When members join the health club, they pay a fee for a certain length of time. Most memberships are for one year, but memberships as short as two months are available. Throughout the year, the health club offers a variety of discounts on its regular membership prices (e.g., two memberships for the price of one for Valentine’s Day). It is common for members to pay different amounts for the same length of membership.

The club wants to mail out reminder letters to members asking them to renew their memberships one month before their memberships expire. Some members have become angry when asked to renew at a much higher rate than their original membership contract, so that the club wants to track the price paid so that the manager can override the regular prices with special prices when members are asked to renew. The system must track these new prices so that renewals can be processed accurately.

One of the problems in the health club industry is the high turnover rate of members. While some members remain active for many years, about half of the members do not renew their memberships. This is a major problem because the health club spends a lot in advertising to attract each new member. The manager wants the system to track each time a member comes into the club. The system will then identify the heavy users and generate a report so that the manager can ask them to renew their memberships early, perhaps offering them a reduced rate for early renewal. Likewise, the system should identify members who have not visited the club in more than a month so that the manager can call them and attempt to reinterest them in the club.

This is a discussion question, which means you answer the question, at the beginning of the week, join the conversation during the middle of the week, and synthesize at the end of the week.  Please refer to the assignment/discussion grading rubric to understand how I will evaluate your responses.