Given a simple problem, design and desk-check
Question # 00150686
Posted By:
Updated on: 12/12/2015 12:55 PM Due on: 01/11/2016
Name:_________________
Week 7 iLab—Sales Tax
TCO 3: Given a simple problem, design and desk-check a solution algorithm requiring a
modular design that is expressed in terms of pseudocode or program notes, input-processoutput (IPO) analysis, and flow chart.
TCO 7: Given a program with logic errors that is intended as a solution to a simple problem,
employ debugging diagnostics to remove and correct the errors.
TCO 8: Given a more complex problem, develop a complete solution that includes a
comprehensive statement of the problem, complete program design, and program
documentation.
Scenario
Your algorithm will write two functions called ComputeTotal( ) and ComputeTax( ).
ComputeTotal( ) will receive the quantity of items purchased, and the unit price of each item.
It will return the total sales (quantity times price).
ComputeTax( ) will receive total sales as a number and the state as a string and return the
amount of tax depending on the state. NJ requires 7% tax, FL requires 6% tax, and NY
has 4% tax.
The main program will ask for the name of the customer and read the name in a variable
called name. It will also ask for one of the three states listed above. It will ask for the number
of items sold and the unit price of the item.
Main will then call ComputeTotal( ), passing the quantity and unit price. Main will then call
ComputeTax( ), passing the state and the amount of sales and receive back the tax. Finally
Main( ) will print out the total sales, the tax amount, and the total with taxes. For example, see
below.
Enter the name of the customer: Jack
In which state (NY / NJ / FL) ? NJ
How many items were purchased?: 3
What was the unit price of the items?: 1.50
The total sales for Jack are $4.50
The total with taxes is $4.82
Make sure you save the return values into an appropriate variable. Use formatted output to make
the program more user friendly.
Be sure to think about the logic and design first (IPO chart, pseudocode, and flowchart), then
code the C# program.
Rubric
Point distribution for this activity:
Lab Activity
Document
Points possible Points received
Variable list & IPO chart
10
Hierarchy Chart
15
Working program
25
Total Points
50
1—Variable List With Data Type & IPO Chart
List all variables you will use (use valid variable names). Indicate whether the data type is
string, integer, or double, and so on.
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
3—Hierarchy Chart
Use MS Visio to create a hierarchy chart. Paste the hierarchy chart here, or attach it as a
separate document.
5—C# Code
Screenshot of Running Program
Zipped Project File (submitted to DropBox)
Copy/paste your C# code here.
Paste a screenshot(s) of the complete working program here. Use test scenarios to
test all possible paths of execution.
Submit a separate zipped file to the Dropbox containing the complete project folder.
Week 7 iLab—Sales Tax
TCO 3: Given a simple problem, design and desk-check a solution algorithm requiring a
modular design that is expressed in terms of pseudocode or program notes, input-processoutput (IPO) analysis, and flow chart.
TCO 7: Given a program with logic errors that is intended as a solution to a simple problem,
employ debugging diagnostics to remove and correct the errors.
TCO 8: Given a more complex problem, develop a complete solution that includes a
comprehensive statement of the problem, complete program design, and program
documentation.
Scenario
Your algorithm will write two functions called ComputeTotal( ) and ComputeTax( ).
ComputeTotal( ) will receive the quantity of items purchased, and the unit price of each item.
It will return the total sales (quantity times price).
ComputeTax( ) will receive total sales as a number and the state as a string and return the
amount of tax depending on the state. NJ requires 7% tax, FL requires 6% tax, and NY
has 4% tax.
The main program will ask for the name of the customer and read the name in a variable
called name. It will also ask for one of the three states listed above. It will ask for the number
of items sold and the unit price of the item.
Main will then call ComputeTotal( ), passing the quantity and unit price. Main will then call
ComputeTax( ), passing the state and the amount of sales and receive back the tax. Finally
Main( ) will print out the total sales, the tax amount, and the total with taxes. For example, see
below.
Enter the name of the customer: Jack
In which state (NY / NJ / FL) ? NJ
How many items were purchased?: 3
What was the unit price of the items?: 1.50
The total sales for Jack are $4.50
The total with taxes is $4.82
Make sure you save the return values into an appropriate variable. Use formatted output to make
the program more user friendly.
Be sure to think about the logic and design first (IPO chart, pseudocode, and flowchart), then
code the C# program.
Rubric
Point distribution for this activity:
Lab Activity
Document
Points possible Points received
Variable list & IPO chart
10
Hierarchy Chart
15
Working program
25
Total Points
50
1—Variable List With Data Type & IPO Chart
List all variables you will use (use valid variable names). Indicate whether the data type is
string, integer, or double, and so on.
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
3—Hierarchy Chart
Use MS Visio to create a hierarchy chart. Paste the hierarchy chart here, or attach it as a
separate document.
5—C# Code
Screenshot of Running Program
Zipped Project File (submitted to DropBox)
Copy/paste your C# code here.
Paste a screenshot(s) of the complete working program here. Use test scenarios to
test all possible paths of execution.
Submit a separate zipped file to the Dropbox containing the complete project folder.
-
Rating:
/5
Solution: Given a simple problem, design and desk-check