Site hosted by Angelfire.com: Build your free website today!

Functional Specs

Click to Download Functional Specs

Functional Specification Document

Display Panel for the Space Center Generic Board

Revision A

BY: TEAM BORG (Bryan Wilson, Donald Carlsen).


 

Purpose

This Functional Specification Document is to show the functions of the product that The McAuliffe Space Center wants. We interviewed all of the staff at the space center to find out their wants and desires. Then we took this information and translated it into specifications that we need in order to create our product.

 

This document seeks to establish the functions of the final product desired by the customer, The McAuliffe Space Center.  The managers of the Space Center were interviewed by all of the engineers on the Space Center project.  All of the information collected will be condensed, then interpreted into engineering functional specifications that we, as a team, can use to build our final project.

 

Project Scope

The McAuliffe Space Center in Pleasant Grove, Utah is a unique and unparalleled experience that combines both the fun of exploration and learning with a simulated and futuristic adventure story.  Our project is to design a display board that can communicate with the user and the control manager working behind the scenes.   Our board will be made generic enough that they, McAuliffe Space Center, can incorporate it into different configurations as the need arise.  We have four groups of two working on the project. We are designing the actual board as well as constructing it. In addition we will be designing a LED display that will display what the user types in on a keyboard.

 

Customerís Requirements

 

Needs to be cool, durable, have instantaneous response (user feedback), interactive response (feedback to space center workers), flexible (able to use in any of their ships), and within a budget of $500.

 

Interpreting Customerís Requirements

 

Each team on the Space Center project will build a sub-panel for an overall ďcoolĒ panel that will be covered with smoked Plexiglas and specially designed plastic.  The panel will have lights, interactive buttons, and displays.  The plastic will be replaceable and able to withstand innumerable12 year old boys using the systems.

 

Rating Scale

#

Description

1

Feature is not important but we would not mind having it

2

Feature would be nice to have but is not necessary

3

Feature is highly desirable but we would consider a product without it

4

Feature is critical, we would not consider a product without it

 

 

#

Customerís Stated Need

Interpretation of Customerís needs

Rating

1

Coolness

Smoked Plexiglas Panels covering the panels

4

2

Durable

Will handle the abuse of 500 kids per week

4

3

Flexibility

Generic interface for any of the ships

4

4

Simplicity

A 12 year old can make it with some guidance.

1

5

Local Instantaneous Response

The user will receive feedback according to his actions within .2 seconds.

3

6

Delay Response

The CPU needs to receive a signal from our boards 5 times per second.

4

 

Delay Response

The LED needs to light up quickly.

3

7

Budget

The cost of the Prototype Panel will cost less than $70

3

 

 

Reflection

One of the most difficult parts about this project is trying to meet the needs of our customer. They want things that are not possible to do within our given time and budget. So there are tradoffs that we will have to make in order to make the product meet expectations in some areas and yet exceed them in other areas. It is also hard to measure what a 12 or 13 year old would think was cool. Technology today is so advanced that it is hard to make something that is both cheap and ďcool.Ē Another thing that we are working on is finding LED lights that are low in power so that we can get a power supply that will run our system efficiently and potentially light up all of the LEDís at once.

Metric #

Need #

Metric

Units

Marginal Value

Ideal Value

1

1

Majority of children that think the product looks cool from survey

Children

>=10

20

2

2

Longevity of product

Years

.5

2

3

2

How much shock can it take

Shakes

5

20

4

3

Easy to follow instructions

Unit

3

10+

5

3

Transparent, modifiable face plate

Unit

10

15

5

3

2 boards completely interchangeable

Unit

2

2

6

4

How young of a child can operate our system

Age

12

10-

7

5

Time before LEDís react to input

Milliseconds

< 300

200

8

6

Time before remote software is notified of button-press

Milliseconds

1000

< 500

9

6

All of the LEDís light up rapidly

Milliseconds

700

500

10

7

The overall display panel needs to be inexpensive

Dollars

150

<=130