Question Details

MGMT 340 WEEK 4 Petrie's Electronics needs to improve its marketing and customer retention by increasing customer loyalty. The marketing department is in need of a Customer Relationship Management (CRM) system. Upper management has selected No Customer Escapes as the top Information Technology project this year.
1.	In Week 4, we finish the second phase of the system development life cycle (SDLC), System Analysis. We have gathered detailed requirements for the CRM project and created Data Flow Diagrams (DFD) for our process modeling. Now we need to conceptually model our CRM system by reviewing Entity Relationship Diagrams (ERD) which will help next week in designing data bases in the third phase of the SDLC, System Design.
2.	In order to finalize detailed requirements, we will need to structure the data collected. DFDs help model how data moves throughout our system; ERDs help us understand how data is related and structured. To aid our understand of ERDs, we need to understand the following.
a.	What entities are
b.	What attributes are
c.	Degrees of Relationships
d.	Cardinality Relationships
3.	To succeed this week, we will need to do the following.
a.	Continue reading in our book. Last week we read Chapters 5 and 6; this week, we must understand all of the concepts in Chapter 7.
b.	Read the Petrie's case study at the end of Chapter 7 to add to what we learned in previous weeks.
c.	We have already gathered some requirements and constraints identified in PE Table 5-1 of our textbook.
4.	We will validate the preliminary ERD described in PE Table 7-1. The Petrie's Electronics Case in Chapter 7 describes how you will validate requirements for the CRM project and update the ERD.