NEED STATEMENT : CRICKET BALL LAUNCHING MACHINE

2.A.1 QUESTIONS AND ANSWERS

SI.No	Questions	Answers	Objectives/Constraints/Functions
1.	Should the machine be automatic or manual?	The machine should be semi-automatic	Objective
2.	Machine should be fixed or portable?	The machine should be portable	Objective
3.	What is the height from which the ball should be launched?	The ball should be launched at the height of 5ft	Constraint
4.	What should be the bowling delivery style?	Delivery style should be speed bowling	Objective
5.	Should the device be height adjustable?	Yes, the device should be height adjustable	Function
6.	What type of ball should be launched?	Device should be able to launch light weight balls like low tennis, plastic balls etc	Objective
7.	How many balls should be launched once the device is loaded?	Around 8-10 balls once loaded	Constraint
8.	What is speed at which the ball should be launched?	The ball should be launched at about 40-60 Kmph	Constraint
9.	How much should the machine weight?	The machine should not weigh more than 3 kg and it should be easy to carry	Constraint
10.	How many balls should be thrown per min?	It should be able to throw 8-10 balls per minute	Constraint
11.	What should be the size of the machine?	The size should not be more than 1.5ft in length, 1.5ft in breadth and 1.5ft in height	Constraint
12.	Should the machine be user/eco-friendly?	Yes, the machine should be user/eco-friendly	Objective
13.	What should be the weight and diameter of the ball?	Weight of ball should be 56.0-59.4 g and diameter should be 7.5 cm	Constraint
14.	Is there any time gap between the successive launches?	Yes, after launching a ball the machine holds the next ball for a while, so there is a time gap	Function
15.	Should the device be operated indoor or outdoor or both?	The device should be operated in both outdoor and indoor conditions	Objective
16.	What should be the launching range?	The launching range should be long/short	Function
17.	Should machine give indication when balls are empty?	Yes, the device should give the indication when the balls are empty	Function
18.	What should be the overall cost of the device should be?	The budget should not exceed Rs6000	Constraint
19.	Should the machine able to detect the speed of the ball?	Yes, the machine must be able to detect the speed of the ball	Function
20.	Should machine give an indication when it is ON/OFF?	Machine should give an indication when it is ON/OFF	Function
21.	Should the device able to vary the speed of the ball?	Yes, the device must be able to vary the speed of the ball	Function
22.	Will the machine be able to sense the ball or not?	Yes, the machine should sense the ball	Function

2.A.2 IDENTIFYING CLIENT'S OBJECTIVES

SI.No	Objectives
1.	Device should be user/eco friendly
2.	The machine should be semi-automatic
3.	The machine should be portable
4.	Delivery style should be speed bowling
5.	Device should be able to launch light weight balls like low tennis, plastic balls etc
6.	The device should be operated in both outdoor and indoor conditions

Problem definition version 1.1

Design a semiautomatic cricket ball launching machine which is portable, user/eco friendly, able to launch light weight balls with a speed bowling delivery style and can be operated in both indoor and outdoor conditions.

2.A.3 IDENTIFYING THE CONSTRAINTS

SI.No	Constraints
1.	Once the device is loaded it should be able to launch 8-10 balls
2.	The ball should be launched at the height of 5 ft
3.	The ball should be launched at about 40-60 kmph
4.	The machine should not weigh more than 3 kg and it should be easy to carry
5.	It should be able to throw 8-10 balls per minute
6.	The size should not be more than 1.5ft in length, 1.5ft in breadth and 1.5ft in height
7.	Weight of ball should be 56.0-59.4 g and diameter should be 7.5 cm
8.	The budget should not exceed Rs 6000

Problem definition version 1.2

Design a semiautomatic cricket ball launching machine which is portable, user/eco friendly, able to launch light weight balls with a speed bowling delivery style and can be operated in both indoor and outdoor conditions. The dimensions of the machine must not exceed 1.5ft * 1.5ft * 1.5ft, should not weigh more than 3 kg and it should be easy to carry, once the device is loaded it should be able to launch 8-10 balls, ball should be launched at the height of 5 ft, able to launch at the speed of 40-60 kmph, the diameter of the ball should be 7.5 cm and weight of ball should be 56.0-59.4 g, the cost must not exceed Rs 6000.

2.A.4 ESTABLISH FUNCTIONS

SI.No	Functions
1.	The device should be height adjustable
2.	The machine should sense the ball
3.	After launching a ball, the machine holds the next ball for a while, so there is a time gap
4.	Device must be able to vary the speed of the ball
5.	The ball can be launched to a short/long distance
6.	The machine should be able to find the speed of the ball
7.	The device should give the indication when the balls are empty
8.	Machine should give an indication when it is ON

Problem definition version 1.3

Design a semiautomatic cricket ball launching machine which is portable, user/eco friendly, able to launch light weight balls with a speed bowling delivery style and can be operated in both indoor and outdoor conditions. The dimensions of the machine must not exceed 1.5ft * 1.5ft * 1.5ft, should not weigh more than 3 kg and it should be easy to carry, once the device is loaded it should be able to launch 8-10 balls, ball should be launched at the height of 5 ft, able to launch at the speed of 40-60 kmph, the diameter of the ball should be 7.5 cm and weight of ball should be 56.0-59.4 g, the cost must not exceed Rs6000. The device should have the height adjustability feature, able to sense the ball, launching range should be long or short and there is a short time gap between the successive launchings, device must vary the speed of the ball and able to find it's speed, device should give the indication when balls are empty and when the device is ON.