Who is the author of the entity-relationship data model

Assignment Help Basic Computer Science

Reference no: EM131219044

a. Who is the author of the entity-relationship data model?

b. Define entity. Give an example of an entity (other than one presented in this chapter).

c. Explain the difference between an entity class and an entity instance.

d. Define attribute. Give an example attribute for the entity in your answer to Review Question 5.5.

e. Define identifier. Give an example identifier for the entity in your answer to Review Question 5.5.

Reference no: EM131219044

Questions Cloud

Produce web site which will consist of a number of html page : Develop a usable, well presented, interactive web site based on the assessment theme - Produce a web site which will consist of a number of html pages.

Explain how a data model is like a building blueprint : Explain how a data model is like a building blueprint. What is the advantage of making changes during the data modeling stage?

Write about android studio : Title (android studio) introduction, abstract, how to set up, features, comparison with eclipse, how to make screens, how to connect with database for application etc, use only simple sentences

What conclusion can you draw about the test of his ability : Compute the 95% confidence interval on the proportion of times this person can predict coin flips correctly. What conclusion can you draw about this test of his ability to predict the future?

Who is the author of the entity-relationship data model : Define entity. Give an example of an entity (other than one presented in this chapter).

Give an example of a composite identifier : What is the degree of relationship? Give an example of a relationship of degree three (other than one presented in this chapter).

Define the terms maximum cardinality and minimum cardinality : Explain the difference between an entity and a table. Why is this difference important?

Computer clock synchronization : Generate the Lampart's Algorithm that is behind Computer Clock synchronization and explain how time synchronization is implemented

Social and cultural factors that may influence the principal : Review the case given below case study (Psychological Evaluation for Jessica E. Smith) for this required assignment (RA). On the basis of the information in the case study, provide a principal (primary) and a secondary diagnosis for the person usi..

User Account

All Pages