N5 Software Design and Development

Why it may be necessary to return to the implementation stage of an iterative development process after the testing stage.

• to Correct errors identified during testing stage or any other stage of process

• to add additional code to original design

• to update clients' name on documentation after cient change

• to correct spelling mistakes

An application is created to find out how much of a discount customer is entitled to based on the total cost of the purchase. Identify the Input and Output in this application:

• Input: Discount Output: Total to Pay

• Input: Total to Pay Output: Discount

A program is being designed that will allow pupils to add money to their lunch money account. The user enters their name, an 8-character password and the amount of money they want to add. A button is then clicked, and the updated balance of the account is displayed. Analyse the problem and identify input and output for this program:

• Input: New balance Output: Username, password and money to be added

• Input: Username, password, money to be added Output: New balance

State which design technique has been used for the above solution:

• Pseudocode

• Flowchart

• Structure Diagram

• Wireframe

State the type of loop shown in the design above:

• Fixed loop - because loop will run the exact number of times as a number which user put in when asked for number of trees being purchased.

• Conditional Loop - because loop will run until the user is finished with putting in number of trees being purchased

State the design technique that has been used to design the solution

• flowchart

• pseudocode

• structure diagram

• wireframe

What are the benefits of using flowchart instead of pseudocode?

• Flowchart provides a visual representation

• Visual representation is easier to understand and follow than textual pseudocode

• Flowchart illustrates flow of data and sequence of processes occurring when program is running

• Flowchart looks better and you can colur the shapes

You have been asked to design an efficient solution to the program which use number of if statements. What would you use to make this program more efficient?

• nested if statements

• an Array

• Loops

• Sequence

When creating a pseudocode it is important to remember that you need to terminate any if statements or loops. ex END loop, END if

• TRUE

• FALSE

When creating wireframe for program or website you need to include:

• simple shapes representing objects used

• name the objects and write down any file extensions for media used

• underline hyperlinks

• include stepwise refirement or simplified code