Program Description:

The program I’m creating is going to be utilized to determine the usable surface area of each room in a four-room house and then calculate the usable square footage of the house as a whole.

Analysis:

To start this program, I needed to come up with a plan or blueprint. I utilized the Modular Approach to break this down into smaller parts. The main module is the solution to the problem; determine the square footage of a four-bedroom house with the all rooms being rectangles. The program will perform the equation for the area of a rectangle (Area = Length * Width) for each room. Each sub-module will perform the equation and come up with a solution. Once the solutions are identified for each room, we must finish the task by finding the sum of the four rooms’ square footage to calculate the houses’ total square footage (Area RM1 + Area RM2 + Area RM3 + Area RM4 = Total Square Footage of House).

Calculate the Total Square Footage of a four-bedroom house.
Calculate the Total Square Footage of a four-bedroom house.

Area of Room One
Area of Room One

PLUS
PLUS

Area of Room Two
Area of Room Two

PLUS
PLUS

Area of Room Three
Area of Room Three

PLUS
PLUS

Area of Room Four
Area of Room Four

Analysis (CONT):

In this program, I will be using various variables with different definitions. The table below will list and identify the variables:

VARIABLES | DEFINITION | LR1 | LENGTH OF ROOM ONE | WR1 | WIDTH OF ROOM ONE | LR2 | LENGTH OF ROOM TWO | WR2 | WIDTH OF ROOM TWO | LR3 | LENGTH OF ROOM THREE | WR3 | WIDTH OF ROOM THREE | LR4 | LENGTH OF ROOM FOUR | WR4 | WIDTH OF ROOM FOUR | AR1 | AREA OF ROOM ONE | AR2 | AREA OF ROOM TWO | AR3 | AREA OF ROOM THREE | AR4 | AREA OF ROOM FOUR | T | TOTAL SQUARE FOOTAGE OF HOUSE |

To come up with the square footage of each rectangular room, we would need the equation (Area = Length * Width). With each rooms square footage now known, we would need to use a simple summation equation to add the rooms square footage together to get our answer of the total square footage of our four-bedroom house (Area RM1 + Area RM2 + Area RM3 + Area RM4 = Total Square Footage).

Design:

Calculate the Total Square Footage of a 4-Bedroom House written in Psuedocode:

Calculate Square Footage of each room:

Room One:

1. display “LR1” 2. get length “14” 3. display “WR1” 4. get width “20” 5. calculate area = length x width “14 * 20” 6. display area “AR1” 7. get “280” 8. stop

Room Two:

1. display “LR2” 2. get length “12” 3. display “WR2” 4. get width “13” 5. calculate area = length x width “12 * 13” 6. display area “AR2” 7. get “156” 8. stop

Room Three:

1. display “LR3” 2. get length “14” 3. display “WR3” 4. get width “16” 5. calculate area = length x width “14 * 16” 6. display area “AR3” 7. get “224” 8. stop

Room Four:

1. display “LR4” 2. get length “20” 3. display “WR4” 4. get width “16” 5. calculate area = length x width “20 * 16” 6. display area “AR4” 7. get “320” 8. stop

Calculate Total Square Footage of the house by combining the square footage of each room.

1. display “AR1, AR2, AR3, AR4” 2. get “280, 156, 224, 320” 3. calculate Total Square Footage = AR1 + AR2 + AR3 + AR4 “280+156+224+320=T” 4. display total “T” 5. get “980” 6. stop

A flow chart has been created to help understand the program creation in a different view:

To make sure that we get accurate results every time, I used three sets of input data in three different test studies to see if the program worked. The results are in the table below:

TEST CASE # | INPUT | EXPECTED OUPUT | 1 | ROOM ONE: LENGTH=14, WIDTH=20ROOM TWO: LENGTH=12, WIDTH=13ROOM THREE: LENGTH=14, WIDTH=16ROOM FOUR: LENGTH=20, WIDTH=16 | 980 SQ. FT | 2 | ROOM ONE: LENGTH=24, WIDTH=18ROOM TWO: LENGTH=10, WIDTH=15ROOM THREE: LENGTH=23, WIDTH=13ROOM FOUR: LENGTH=28, WIDTH=20 | 1,441 SQ. FT | 3 | ROOM ONE: LENGTH=10, WIDTH=11ROOM TWO: LENGTH=13, WIDTH=16ROOM THREE: LENGTH=10, WIDTH=12ROOM FOUR: LENGTH=18, WIDTH=11 | 636 SQ. FT |

Documentation:

While starting this assignment, I found that it was a very daunting task right at the beginning. It all seemed overwhelming and ominous due to the fact this is a new concept for me. I did find that it was much easier to utilize the Modular Approach to take a seemingly large problem and separate it into smaller ones to get traction so to speak. Once I had the smaller problems solved, I just needed to utilize a flowchart to get my thoughts in a chronological order so I could establish a suitable Pseudocode for the program. I can see a possible issue if you don’t know the equation to establish the surface area of a rectangle but once you figure that out, its simple plug and play.