Suppose you have created a data model for an airline based on a variety of forms,reports,user interviews,data sources,etc.Your client comes forward with a new desired report that includes passenger weights and a relationship between passengers and employees,neither of which is in your E-R diagram.You should ________.
A)create a new,separate E-R diagram with just the new information
B)add the relationship and the weight attribute to the existing data model
C)add the relationship but not the weight attribute
D)add the weight attribute but not the relationship

Question

Quizplus · Accepted Answer

It is best to add the new information (passenger weights and relationship between passengers and employees) to the existing data model. This ensures that the data model is updated and comprehensive. Creating a separate E-R diagram may lead to inconsistencies and duplication of effort in managing the airline data.

Suppose You Have Created a Data Model for an Airline