Project use case for erd

 The  goal of the project is to implement a “prototype” database system  application / ERD diagram for an eCommerce social-network system called  UCOnline where users can explore information about books/music/software,  rate your purchase, identify purchase price and see ratings of their  friends.  The  project will require you to complete the assignment individually. Below  you will find the ERD deliverable requirements. There are two parts to  the assignment. You must create a diagram using a diagramming tool AND  provide a written text-based document explaining your relationship  mapping (systems analysis use case document). The assignment is worth 30  points. See rubric for grading scheme.  BUSINESS REQUIREMENTS ACROSS ALL ASSIGNMENTS  You will work with book/music/media information, user information, ratings of books, and users’ social network  

  • Each  book has an id, title, publication date, publisher, ISBN, functional  category, page count, price (publisher), and product description
  • There are 3 categories of book: fiction, non-fiction, and specialty
  • There are 2 categories of music: digital and media-based
  • An author can write one or more books.
  • A musician can be a solo artist, part of a group, or both
  • An author can also be associated with one or more publishers.
  • A musician/group/act can be associated with one or more music houses
  • An author’s book can have one or more editions.
  • A song and or album can have more than one version/edition (i.e. EP, LP, CD, DVD etc)
  • A publisher can have many authors and many books.
  • A record company can have many artists associated and many albums associated with it. 
  • A record company can also be the publishing company (i.e. self-publishing)
  • Many  ISBNs can also be associated with a given publisher but only one ISBN  per form of medium (ie the ISBN is the PK no matter what).
  • An author can write many books.
  • An artist can write many songs, albums etc.

UCOnline needs  to keep track of user ratings for each item sold in the online store  (e.g., 1-5 and 1 for ‘Dislike’, to 5, for ‘Awesome!’). A particular user rates a particular item at a given time. A user CANNOT rate the same multiple times unless there are multiple editions of the item. Each edition can be rated separately. Each  user who submits a rating will be identified by a unique id and has a  name, gender, age, and location. Nothing is anonymous. There  is also a social network between users. Users can send communication  requests (i.e. instant messages/emails) to other users. Such requests  can be accepted or ignored. Once accepted, the two users are considered  ‘book buddies.’ If ignored, the user can send the request again. We want  to add a store when the requests were sent (timestamp), the result of  the requests and when the request was answered (timestamp). 

Order a unique copy of this paper
(550 words)

Approximate price: $22

Place Order
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

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

Read more

Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

Read more

Privacy policy

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

Read more

Fair-cooperation guarantee

By placing an order with us, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

Read more

Calculate the price

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages