Requirements Specification

Background:

ED designs and sells a wide range of electronic dartboards. These dartboards are marketed more toward bars and the beginner player. Novice players will enjoy various games with our system, as well as learn how to play them the correct way. Bar owners will also enjoy these products because they will not have to deal with keeping score, and any disputes can be resolved immediately just by looking at the display. Our electronic dartboard will keep score automatically to help prevent the stop of the game and increase the flow of game play. Our dartboards are made to look, feel, and play exactly like a regulation dartboard and therefore will outsell our competitor’s plastic version.
Our dartboards are 100% plug and play, right out of the box. Each dartboard set will come with 6 professional grade playing darts. When it comes to choosing, ED would like the consumer to consider the following options:

1.      Buy an inexpensive plastic dartboard and uses plastic darts, which do not always cling to the board, causing frustration for the player.

2.      Buy a professional regulation dartboard that does not automatically keep score for you.

3.      Buy our dartboard that is not only attractive and regulation quality, but will also automatically keep score for the user. Players also have the option of choosing their own darts to use, instead of being forced to buy specially made darts.

This is the requirement specification for an electronic device that is used in the playing of darts. This device will keep score and alleviate confusions and allow smoother game play.

The Deliverables:

1.      Three working prototypes.

2.      The following manufacturing related documents:
(a) Wiring schematic
(b) Mechanical schematic
(c) Parts list, assembly drawings and assembly instructions
(d) Bill of materials
(e) Quality inspection report
(f)  Documentation of specific tests performed on various devices used in the dartboard

3.      User’s manual

Special Restrictions:

1.      All components used in design and manufacturing must be supplied from two companies

2.      The user interface (software) can only be changed with written consent from ED

Principle of Operation:

The electronic dartboard can be used in any indoor environment. Once the unit is powered on, the user can select a game from the console and immediately begin game play. Upon throwing darts to the board, the system will recognize applied pressure and tally up scores for the user.

User Interface:

The user interface consists of a user ON/OFF power  switch, a reset switch, a foot line sensor, a computer program, and the dartboard.

Input:

The input is the dart striking the dartboard and the sensors reacting to the pressure. Also the user will specify a game to play using the program.

Output:

Sensors will send out an output voltage to the PIC. The PIC will in turn send a data signal to the computer and the program will convert the signal to the appropriate score.

Users Manual:

ED is an automatic dartboard scorekeeper. When a dart is thrown onto the board, the corresponding value will be sent to the computer. After the user is done throwing, the values will be added and a tallied score will be displayed.

• Hang dartboard on a wall (5’8” from the floor to the center of the dartboard)
  
  
• Place foot line sensor 7’10” on the floor away from the center of the dartboard
  
  
• Plug in the dartboard to a 120V AC outlet (standard house outlet)
  
  
• Turn on the dartboard using the ON/OFF power switch.
  
  
• Load the computer program.
  
  
• Choose the game to be played on the computer program.
  
  
• Stand on the foot line sensor and proceed to throw 3 darts, 1 at a time, at the dartboard.
  
  
• Retrieve your darts.
  
  
• Repeat previous 2 steps until game is finished.

Acceptance Tests:

All 82 sections will be tested prior to shipment of the product. All sections are tested to make sure all corresponding values are sent to the computer accurately.

Acceptance Test for Dart Sensing:

Darts will be thrown at all sections at various forces to ensure that the sensors are working appropriately. Output signals from the sensors will be measured using a voltmeter to ensure that correct signals are being sent to the PIC Microprocessor. Values that are sent from the PIC to the computer will be are received and displayed correctly.

Product Cost:

The end product cost is approximately proportional to the cost of the parts. For our single unit design and testing, the approximate cost will be $200.

Dispute Resolution Mechanism:

All disputes will be discussed among group members. All sides will be addressed and a logical solution will be finalized. If a resolution can not be reached, an unbiased outside source will be brought in to assist in the dispute.

[Wed, 12 Oct 2005 22:24:00 -0400]