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
The Essay on Income Tax Fundamentals
Form Department of the Treasury—Internal Revenue Service (99) U. S. Individual Income Tax Return Last name 2011 , 2011, ending OMB No. 1545-0074 , 20 IRS Use Only—Do not write or staple in this space. * For the year Jan. 1–Dec. 31, 2011, or other tax year beginning Your first name and initial If a joint return, spouse’s first name and initial See separate instructions. Your social security number ...
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
Output “Enter taxRate: “
Input taxRate
Output “Enter tipPercent: “
Input tipPercent
taxAmount = checkAmount * taxRate
tipAmount = checkAmount * tipPercent
grandTotal = checkAmount + taxAmount + tipAmount
Output “Check Amount is “ + checkAmount
Output “tax amount is “ + taxAmount
Output “Tip Amount is “ + tipAmount
Output “Grand Total is “ + grandTotal
End
5—Desk-Check
Desk-check your solution using the following sample data.
Amount of check before taxes: $28.50
Tax rate: 6%
Tip percentage: 18%
Enter the expected outputs.
Expected total tax amount ____________
Expected total tip amount _____________
Expected total including tax and tip ____________
For each variable in your program, write the variable name selected in Step 1, in the heading for the variable columns (not all columns may be used).
For each step in your algorithm, write its step number in the left column (not all rows may be used).
Using the sample inputs above, enter the value of each variable after each step has been executed. Note any output displayed to the user.
Step
Variables (write variable names in first line below)
The Term Paper on Input Output Economics Total Sector Table
Table of Contents Aim of the study / paper II Introduction III The Beginning of Input-Output Economics IV The Leontief Paradox V The Input-Output Model Today VI Calculation of the Input-Output Table Multipliers VII Computer Program for the Inverse of a Matrix VIII Regional Input-Output Analysis VIII I The Use of Input-Output Analysis with Regard to the Environment IX Conclusion X Bibliography List ...
Output
Enter step numbers
1
2
3
