hw computer science

3. Detailed Design

This section will define and describe the design details for each of the components in the application.

(The intent of this section is to prepare for the build phase. These detailed design specifications will become a program in your system)

3.1. Component/Module One (Change the name “Component/Module One to be the actual name of the module you are designing. Repeat section

3.1 for ea. component)

3.1.1 Processing Description

Provide a Primitive DFD (SAD) or a Use Case Diagram (OOAD) and a brief narrative

3.1.2 Interface Description

There are several items that should be covered here:

 If the component has a GUI, display the image of the GUI and define each field,

button, link on the GUI.

 if the component receives data, describe the data coming in and where it should go

once it is processed (Input/Output)

 If there is data to be passed to another component that should be listed This section will have a detailed written description of what each button, link, data entry

field etc., does on the page, with an image of the proposed page layout, for each page.

3.1.3 Pseudocode

The processing rules for the component – in logical order. But remember, language

independent. (link to a great example) http://www.wiley.com/college/busin/icmis/oakman/outline/chap05/slides/pseudo.htm

Put things here if it is needed to help explain the business rule functionality of the screen.

For example if you need to check to make sure a customer has no outstanding balance past

60 days in order for them to generate another order identify what data values need to be used to do this and the math functions that need to be used.

If Customer Balance > 0 and Last Purchase Date < (current date – 60 days) then

Deny Purchase

Else

Allow Purchase

You can break this down into functions or procedures if that is the best way to approach this

for your project.

3.1.4 Modules Uses

If this component is a function that is called by other functions, such as a DB call to retrieve

data, insert data, update data or delete data, or some type of standard calculation used by

multiple modules, you will describe that here. If this section does not apply to the

component, simply delete the section.