devry-cis321-week-5-assignments-latest-2015-november

Share on facebook
Facebook
Share on google
Google+
Share on twitter
Twitter
Share on linkedin
LinkedIn

iLab

Milestone 4 – Data Modeling, Part II – Physical ERD

MILESTONE 4 – DATA MADELING – Part II (Physical
ERD)

________________________________________________________________________

Data Modeling and Analysis (continued)

This week you are building on the previous week’s activity.
Please make sure to review the Milestone 4, Part I Solution (located in Doc
Sharing) before continuing with the Milestone 4, Part II activity. The synopsis
below is the same as the synopsis for Week 4. It is shown below for your
convenience.

The requirements analysis phase answers the question, “What
does the user need and want from a new system?” The requirements analysis phase
is critical to the success of any new information system! In this milestone we
need to identify what information systems requirements need to be defined from
the system users’ perspectives and draw graphical, logical models to document
the data requirements for a new and improved system.

Data modeling is a technique for organizing and documenting
a system’s data. Data modeling is sometimes called database modeling because a
data model is usually implemented as a database. Data is viewed as a resource
to be shared by as many processes as possible. As a result, data must be
organized in a way that is flexible and adaptable to unanticipated business
requirements – and that is the purpose of data modeling.

In this milestone, you will first discover those entities in
the system that are or might be described by data. Then you will define each
entity you identify in respect to the business in an Entity Definition Matrix.
Then you will do the data model tutorial in doc sharing that will prepare you
for doing the Fully-Attributed data model (Physical ERD) for ECS.

Objectives

After completing this milestone, you should be able to:

• Understand and perform the techniques
for entity discovery.

• Define each entity with respect
to the business and complete an entity definition

matrix.

• Perform the necessary data
modeling techniques to organize and document the

data requirements for the proposed system.

• Construct the Fully Attributed
data model.

Prerequisites

Before starting this milestone, the following topics should
be covered:

• Data modeling – Chapters 8 and 14.

• Milestone 1-3 Solution – provided by your instructor

• Milestone 4, Part I Solution – provided by your instructor

Assignment

Now that we have studied the current system and analyzed
some of its problems and opportunities, plus gained approval to proceed, we can
now start to identify the business data requirements and graphically model them.
In this assignment, we will use our results of the previous milestones, samples
of forms we have collected, and a copy of a transcript of an interview with Dan
Stantz’s staff. The results of this activity will identify the business data
requirements for the proposed system.

Activities

  1. Create a Physical ERD
    (Fully-Attributed data model) for the ECS case.

Deliverable format and software to
be used are according to your instructor’s specifications. Deliverables should
be neatly packaged in a binder, separated with a tab divider labeled “Milestone
4-Part II”.

References

• Transcripts of Interviews with Equipment Depot staff o
Exhibit 4.1 (see Milestone 4, Part I Description)

• Exhibit 4.5 (see below)

Deliverables:

Fully-Attributed ERD: Due: __/__/__
Time:__________

Exhibit 4.5

Below are the attributes for all
the tables to the Milestone 4, Part I Solution. Your job is to identify which
attributes belong to which entities. Remember that you must specify in your
tables when creating them, each entity’s primary key. When you link two tables,
Visio will create the foreign key automatically for you in the child table. Be
sure to review the Fully-Attributed ERD tutorial before you begin. Remember
that foreign keys go always in the child table (crows feet side).

Attributes:

EquipRepairCost, EmployeeID,
DateOrdered, EmployeeLastName, CheckOutID, DateCheckedOut, PurchaseRequestDate,
PurchaseRequestReason, ExpectRtnDate, EquipName,BuildingName, PurchaseOrderNum,
EquipVendor, EquipDamage, QtyOrdered, PurchaseRequestEquipID,DateReceived,
CostPerUnit, EquipID, EquipSerialNum, EquipAisle, ClassID, ClassDescription,
EquipRepairID, EquipRepairDate, EmployeeFirstName, PurchaseRequestID, CheckOutID,
EquipmentID, EquipmentDescription, QtyCheckedOut, EmployeeOfficePhone,
EquipBin, BuildingID

More to explorer

New Union Conceptualization

Module 7 Discussion  New Union Conceptualization After all that we have read and explored, a new conception of unions may be needed.

Statistical Process Control

For the process you chose in 1-3, identify the type (variable or attribute) of data you have collected for the outputs of

Statement Of Purpose

Statement of Purpose – A document of no more than two pages outlining your objectives for pursuing a Masters of Science in Information

Answer:

Title: devry-cis321-week-5-assignments-latest-2015-november

This question has been Solved!

Click the button below to order this solution.

Leave a Reply

Your email address will not be published. Required fields are marked *

Open chat