Data Models

Question 1

simple representations usually graphical of complex real world data structures, facilitate interaction among designer, the applications programmer, and the end user

Answer 1

Data Models

Question 2

Have different views and needs for data

Answer 2

End Users

Question 3

Policies within specific organization, apply to any organization that stores and uses data to generate information.Description of operations that help create and enforce actions within organization.

Answer 3

Business rules

Question 4

anything about which data are to be collected and stored.

Answer 4

Entity

Question 5

characteristic of an entity

Answer 5

Attribute

Question 6

association between entities

Answer 6

Relationship

Question 7

Types of Entity relationships

Answer 7

One-to-Many (1:M) relationship
Many-to-Many (M:M) relationship
One-to-One (1:1) relationship

Question 8

restriction placed on the data

Answer 8

Constraint

Question 9

Company managers
Policy makers
Department managers
Written documentation (procedures, standards, op. manuals)
Direct interviews with end users

Answer 9

Sources of Business Rules