Author Question: What is OOP persistence, and how is it indicated in UML-style E-R diagrams? What will be an ideal ... (Read 69 times)

beccaep · **on:** Jul 7, 2018

What is OOP persistence, and how is it indicated in UML-style E-R diagrams?

What will be an ideal response?

Question 2

Simpson's Lawn Services decides to offer two free mowing services for all customers who booked garden landscaping in the fall. Which of the following forces is Simpson's Lawn Services addressing?

A) the control exercised by Acme Corp., which supplies Simpson's with lawn mowers
B) the power held by the landlord of the Simpson's office space
C) the threat posed by Roger's Landscapes, a new competitor
D) the bargaining power of the City Football Club, who are Simpson's customers

makaylafy · **Reply #1 on:** Jul 7, 2018

Answer to Question 1

Persistence in OOP means that the data for classes of entities, and thus the entity class itself, will be stored in the database. This is indicated by labeling entities with the keyword <>.

Answer to Question 2

C