CONCEPT EVALUATION

a) Pugh Chart

Task 1- Assigning weights to the objectives

Objectives	Weights
kids safety	8
attractive	6
portability	5
ease of use	6
cost	7

Task 2 : Pugh chart for the 4 alternative designs shown in figures

Design Objectives	Weights	Design 1	Design 2	Design 3	Design 4
kids safety	8	+	Datum	+	+
attractive	6	++	Datum	+	0
portability	5	0	Datum	0	+
ease of use	6	+	Datum	0	+
cost	7	0	Datum	+	0
Score(+)		26		21	19

b) Justifications

sl.no	Design objectives	weights	justifications
1	User - friendly	8	It is easy to use compared to design 2
	Option to change the music	3	Change of music's can be done easily ,compared to design 2
	The bot and the jaltarang should be separate	4	The robot and the cups are attached to each other at particular distance
	Movable	4	Can be moved easily , compared to design 2
	Operates using the battery	5	It can opertaed more than a limited time compared to the design 2
2	User - friendly	Datum
	Option to change the music	Datum
	The bot and the jaltarang should be separate	Datum
	Movable	Datum
	Operates using the battery	Datum
3	User - friendly	4	Easy to control the bot
	Option to change the music	0	Similar to design 2
	The bot and the jaltaranag should be separate	4	The bot and jalarang are seperate so that can help to strike the cup easily
	Movable	0	Similar to design 2
	Operates using the battery	5	Plays for more duration compared to design 2
4	User - friendly	4	yes,the bot is user-friendly
	Option to change the music	0	same as that of design 2
	The bot and the jaltaranag should be separate	4	bot and the instrument both are separate
	Movable	0	in both designs body of the bot and arms are movable
	Operates using the battery	5	yes,the bot operates using battery

SELECTED CONCEPT

By using pugh chart we selected concept 1 as the final concept as it satisfies all the objectives.