Reference no: EM132446163
Problem: The system development team at the Wilcon Company is working on developing a new customer order entry system. In the process of designing the new system, the team has identified the following data entity attributes:
Inventory Order
Order Number (identifier)
Order Date
Customer Name
Street Address
City
State
Zip
Customer Type
Initials
District Number
Region Number
1 to 22 occurrences of:
Item Name
Quantity Ordered
Item Unit
Quantity Shipped
Item Out
Quantity Received
a. State the rule that is applied to place an entity in first normal form. Revise this data model so that it is in first normal form.
b. State the rule that is applied to place an entity into second normal form. Revise the data model (if necessary) to place it in second normal form.
c. State the rule that is applied to place an entity into third normal form. Revise the data model to place it in third normal form.
d. What other guidelines and rules can you follow to validate that your data model is in good form?
The goals are to Determine the four popular systems development methodologies: SDLC, RAD, Phased Development and Prototyping
Determine how Phased Development blends the strengths of SDLC, RAD, and Prototyping
Use the Systems Approach to select the right methodology
The data inputs and outputs must be taken from the DFDs. The data storage files are taken from the case narrative, since the DFDs do not include data stores. The software must be subdivided in terms of its major functions (input, processing, output, and storage).
Please provide original content only.