Devry CIS 115 Week 1 Lab Latest

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Devry CIS 115 Week 1 Lab Latest

 

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 for 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 ListWith Data Type

List all the variables you will use (use valid variable names). Indicate whether the data type is string, integer, or decimal, and so on.

(2) IPO Model

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

Inputs Process (calculations) Outputs

FHints:(1) While it is true that some additional string literal messages (those that don’t incorporate variables into the expression) are outputs of the program, you instructor does not require these to be listed in the Outputs of the IPO table. It would not be “wrong” to do so, but these are not usually helpful as a design document. A programmer looking at the IPO table will primarily be concerned with outputs that involve variable expressions. (2) Your instructor does not require you to express the full logic details of your processes in the Process section of the IPO table. A descriptive, unambiguous phrase will suffice. A programmer using this as a guide can easily look at your flowchart, pseudocode, or actual code to see the details of a calculation. If a calculation is particularly complex or hard to follow, you may add some additional brief, explanatory comments. (3) Do not forget that input variables may also appear as output variables as well, as salesPrice does in this example. Be sure to list the variable as both an input AND output in this situation.

 

(3) Pseudocode

Describe your solution using pseudocode. Use the same valid variable names you selected in Step 1.

 

(4) Flowchart

Use MS Visio to create a flowchart. Paste the flowchart here, or attach as separate document. Use the same valid variable names you used in Step 1.

 

(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 _____

Step Variables (write variable names in first line below) Output
Enter step numbers

 

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Devry CIS 115 Week 1 Lab Latest

Best Devry CIS 115 Week 1 Lab Latest

Devry CIS 115 Week 1 Lab Latest