Draw e-r diagram which models online bookstore
Course:- Software Engineering
Reference No.:- EM1349773

Assignment Help
Expertsmind Rated 4.9 / 5 based on 47215 reviews.
Review Site
Assignment Help >> Software Engineering

Q1) Draw the E-R diagram which models an online bookstore.

a. List the entity sets and their primary keys.

b. Suppose the bookstore adds music cassettes and compact disks to its collection. The same music item may be present in cassette or compact disk format, with differing prices. Extend the E-R diagram to model this addition, ignoring the effect on shopping baskets.

c. Now extend the E-R diagram, using generalization, to model the case where a shopping basket may contain any combination of books, music cassettes, or compact disks.

Put your comment

Ask Question & Get Answers from Experts
Browse some more (Software Engineering) Materials
Create a Student directory for Chinese who belong to B.Sc Computer Science Course based on framework in jquery mobile, as knowledge base used to enhance search results with se
Who is your target market? Have you considered the accessibility of your site for people with a disability, such as sight impairment and an analysis of needs should include
Suggest four factors that might have significant effects on the initial COCOMO estimate and propose possible values for these factors.
Assume A friend of you has just started using M.S. Word, and has e-mailed you requesting instructions on how to apply a first line indent to a paragraph. Construct a list of i
The next process is verification of the design to ensure all good design characteristics are incorporated. The project team may create several design options and decide whic
For the prototype user interface, design a switchboard that leads from main sections to sub-sections of related system tasks. The main sections may include member informatio
How do you think DNS is important for the Internet operation? What happen if DNS of your company/network, your provider or root DNS failures? What solutions to secure DNS op
Prepare an annotated table of entities and activities. Indicate on this table the groupings, bubble numbers, and bubble titles to be used in preparing a level 0 logical DFD.