Week 1 Lab_ CIS_115

Week 1 Lab

TCO 1: Given a simple problem, design and desk-check a solution that is expressed in terms of pseudocode, flowchart, and/or input-process-output (IPO) diagrams.

Lab
This exercise will cover the steps used to create a solution. You will use variable lists, IPO charts, pseudocode, flowcharts, and desk-checking.

Rubric

Point distribution for this activity:
Lab Activity
Document
Points possible
Points received
Part 1
10

Part 2
10

Part 3
10

Part 4
10

Part 5
10

Total Points
50

Problem:

You have an idea for a restaurant tip calculator app that you want to develop to use on your mobile phone when you go out to eat. You can enter the amount of the check before taxes, the tax rate, and the tip percentage. It should display the amount before taxes, the dollar amount of the taxes, the dollar amount of the tip (calculated on amount before taxes), and the total amount including taxes and tip.

1—Variable List With Data Type
List all variables you will use (use valid variable names). Indicate whether the data type is string, integer, or decimal, and so on. checkAmount double taxRate double tipPercent double taxAmount double tipAmount double grandTotal double

2—IPO Model
List the inputs, any processes/calculations, and the outputs. Use the same valid variable names you used in Step 1.

Inputs
Process (calculations)
Outputs

checkAmount taxRate tipPercent

taxAmount = checkAmount * taxRate

tipAmount = checkAmount * tipPercent

grandTotal = checkAmount + taxAmount + tipAmount

checkAmount taxAmount tipAmount grandTotal 3—Flowchart
Use MS Visio to create a flowchart. Paste the flowchart here, or attach it as a separate document. Use the same valid variable names you used in Step 1.

4—Pseudocode
Describe your solution using pseudocode. Use the same valid variable names you selected in Step 1.
Start
Output “Enter Check Amount: “
Input checkAmount