PROBLEM DEFINITION

NEED STATEMENT:-

PROBLEM DEFINITION

CASE STUDY:-

1.Need statement:”white board cleaner”

2.DESIGNERS: NISHATH, PAVITRA, AJAY KUMAR, AMAN, ANUSHA

3.CLIENTS: BVB INSTITUTE OF TECHNOLOGY

4.USERS: PROFESSORS

Sl.no	QUESTIONS SUCH AS	ANSWER	OBJECTIVE	FUNCTION	CONSTRAINT
1.	MODE OF OPERATION	AUTOMATIC	Y
2.	IS IT USER FRIENDLY?	YES	Y
3.	TAKES ONE MIN TO CLEAN THE BOARD	YES		Y
4.	IS IT PORTABLE?	YES	Y
5.	IS IT EASY TO CARRY?	YES	Y
6.	WHAT WILL BE THE SIZE OF THE MACHINE?	l=0.3 ft, b=0.2 ft, h=2 ft			Y
7.	SOURCE OF ENERGY?	BATTERY			Y
8.	WHAT WILL BE THE COST?	4000/-			Y
9.	OPERATING MECHANISM	EASY	Y
10.	INTERACTION WITH MACHINE?	REMOTE			Y
11.	MOVING ACROSS THE BOARD EASILY	YES		Y
12.	INDICATION AFTER COMPLETION OF WORK	RED LIGHT		Y

1.1 Identify clients objectives

Step 1:Prepare a list of design objectives

Sl.no	OBJECTIVES
1.	AUTOMATIC
2.	PORTABLE
3.	USER FRIENDLY
4.	Rugged

1.2 Prioritize the identified design objectives

Priority among Various objectives it set through a technique called Pair-Wise Comparison Chart(PCC)

OBJECTIVES	AUTOMATIC	USER FRIENDLY	RUGGED	PORTABLE
AUTOMATIC	***	1	1	1
USER FRIENDLY	0	***	1	1
RUGGED	0	0	***	0
PORTABLE	0	0	1	***

Rank the objective in order of Decreasing value of importance and the list is

1.Automatic

2.User friendly

3.Portable

4.Rugged

Based on the information gathered through interaction with client , initial survey and completing phase 1.1 the problem definition is formulated as follows:

Problem definition version 1.1

Design an automatic, user friendly white board cleaner , which is portable and Rugged.

1.3 Identify constraints

1.cost of the machine nearly 4000-

2.size of the machine is l=0.3 ft, b=0.2 ft, h=2 ft

3.source of energy is battery

Problem definition version 1.2:

Design an automatic, user friendly white board cleaner, which is portable and Rugged and cost of the machine is nearly 4000-,size of the machine is l=0.3 ft, b=0.2 ft, h=2 ft, and the source of the energy is battery.

1.4 Establish functions

1.Cleaning the white board

2.Indication of completion

3.Use of different speed levels in cleaning the whiteboard

4.interaction with the machine is through remote

5.Direction of cleaning is from left to right and vice versa

PROBLEM DEFINITION VERSION 1.3:

Design an automatic, user friendly whiteboard cleaner, which is portable and Rugged and cost of the machine is nearly 4000/-, size of the machine is l=0.3 ft, b=0.2 ft, h=2 ft, source of the energy is battery and the interaction with machine is through remote.Cleaning the whiteboard and indication of completion of work with red light.