IOUG Case Study Exercise and Rubric

 

 

Develop an E-R Diagram for the following situation.  Be sure to tag each attribute with its optionality

 

Our regional Oracle User’s Group has grown to include over 200 members.  We’re an all volunteer organization of working adults and secondary school students, and our records are a mess.  We need an information system to help us keep track of our business.

            We definitely need to automate our membership records.  For each member, we need to keep the member’s name, title, mailing address, office or home phone number, type of membership (individual or corporate), and whether or not the member is has paid their dues (are they “current”?).  We collect dues on a yearly basis, and everyone’s dues are due in January.

            We also like to know which company a member works for or which school they attend, but keeping this information current is difficult because our members are always changing companies, addresses or graduating from school.  We only try to track a single current employer for each member.  Our members come from many different companies including Sony, EG&G, and Storage Tech as well as several different local high schools.  A few of our members are unemployed.  For each company, we keep the company name, address, and type of business.  For each secondary school, we keep the school name and address. We have a standard set of types of businesses and high school codes.  We only keep the main company address for each company.

            We hold various events during the year, and we’d like to track information about each event.  Some of our annual events include the September Meeting, the November Meeting, the annual Training Day in January, and our April Meeting.  We also hold special events each year.  For example, we held a special CASE (Computer Aided Systems Engineering) day last May, and Richard Barker from ORACLE U.K. came and spoke.  We hold our events at several different locations around town including AT&T, Redrocks Community College, and Skyline University.  We’d like to track each event’s date, and optional description of the event, number of attendees, where it was held, how much money we spent on it, and any comments on the event.  We treat all comments as if they came from an anonymous submitter.  A set of comments is a free form text statement of any length.  We number each set of comments, and we frequently get multiple sets of comments for an event.

            We also track which members attended which events.  Some of our members are really active, and others attend very infrequently or just enjoy receiving our newsletter.

            We also need to track what type of computer platforms our members are using.  We have a unique, three-digit system identification tag for each type of platform.  For example, 001 is for IBM/MVS; 002 is for IBM/VM; 003 is for VAX/VMS; 020 is for OS/2; 030 is for PC/DOS; 050 is for Sun UNIX; and 080 is for other UNIX platforms.

            We also like to track which application areas each member is interested in.  Sample application areas include accounting, human resources, entertainment, oil and gas, pharmaceuticals, and health systems.  The applications should be portable, so we don’t need to know which platforms they run on.

 

Each group must prepare the following:

 

• Statement of the Problem
• Statement of the Proposed Solution
• The information requirements of the business/organization clearly stated
• The business rules as they apply to the information requirements of the company/organization stated as single sentences
• The assumptions and constraints that had to be considered clearly stated
• Entity Relationship Model

 

International Oracle User's Group Rubric

 

Point Totals:
18-20 is equivalent to 90-100%
16-17 is equivalent to 80-90%
14-15 is equivalent to 70-80%
12-13 is equivalent to 60-70%