[igCS] 2020 PM 23

[igCS] 2020 PM 23

Baguette ordering system

Analyze the problem

• Study the material and highlight important points

Multiple Choice

How many sizes of baguette is available

• 2

• 3

• 4

• 5

Multiple Choice

How many fillings are available?

• 1

• 4

• 5

• 6

Multiple Choice

How many salad you can add in a bread?

• 1

• 2

• 3

• 4

• 5

Open Ended

It said data must be validated on entry. Suggest the most appropriate validation rule for inputting type of bread.

Open Ended

What is the most appropriate validation for bread size? Explain.

Design

• Determine the modules in the program

• Determine the flow of the program

• Design how the Input and Output should look like

• Data storage (variable in this case)

• Validation types

• Test Plan

Let's draw a structural diagram

A structural diagram break down the problem in smaller, simpler modules

Open Ended

List the Major modules in the tasks.

The main flow of the program

In flow chart

Design the Input/Output (User interface) for taking ONE order

Task 1

Design a data dictionary for Task 1

• It should include: name of the variable, data type, validation rule / format, description, example data

• Draw in a table

• Pay extra attention on how to store the salad as number of salad is not fixed

Open Ended

After the customer confirms the order, the order will be given an unique order number. How will that order number generated?

We need to store the order for the next two tasks

• Use Parallel Arrays

• i.e. a few same sized array to store different fields of the data

• We can use the array index as order number (unique)