Designing er diagrams | Operations Management homework help

  

Question 1: 

Using suitable ERD tool develop ERD for a gym database. You may choose entity types e.g. gym member, employees, programs available, program opted, location, health emergency. You need to identify relevant attributes for each entity types. Identify composite attributes, multivalued attributes, and week entities. Apply appropriate constraints (e.g. primary key, foreign key, not null, unique). Identify relationships among various entities. 

Some conditions are specified below:

a. The employees can be staff or trainers. The employee type field is used to distinguish between the two which take the values “S” and “T” for staff and trainer respectively. 

b. Each member can opt for one or more programs.

c. The gym offers several programs. A program might not be chosen by any member of gym.

d. The gym’s management wishes to track the payment details of members (amount, mode of payment, and date of payment). Suggest how can they track.

e. While exercising in gym if any member gets injury then gym management should be able arrange medical emergency facility.  

    

Question 2:

Draw an “Extended Entity Relationship Diagram” for the following problem:

A company posts job openings online. Job seekers must apply for these jobs online as well. The company will process the applications and call eligible job seekers for an interview. Upon successful completion of the interview, job seeker may be hired, and the corresponding job opening will be deleted from the company’s Website. Job seekers have an ID, name, work history, and qualifications. A job posting can be either for a part time or full time position. Part time positions have a total number of weekly hours and an hourly rate. Full time positions have a monthly salary. Both types of job listings have details about the position and the company. 

Note: In question 2, Identify appropriate entities, attributes, relationships and apply extended entity relationship concepts such as specialization (total /partial), generalization, super type sub type whichever you feel useful / applicable as per question. 

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

STAY HOME, SAVE LIVES. Order your essay today and save 20% with the discount code ATOM