5. Concept Selection And Product Architecture - G-Division-2021-22-EVEN/Repo-06 GitHub Wiki

5.1 Assigning weights to objects

Objectives	Weights
Safety	7
Ease of use	4
Portability	3
Use of standard parts	8
Cost	6
Maintenance	5

Pugh Chart for the Four Alternative Designs

Design Objectives	Weights	Design 1	Design 2	Design 3	Design 4
Safety	7	--	+	+	Datum
Ease of use	4	0	0	0	Datum
Portability	3	-	+	-	Datum
Use of standard parts	8	0	++	--	Datum
Cost	6	-	-	+	Datum
Maintenance	5	+	0	0	Datum
Score(+)		5	26	+13	0
Score (-)		23	6	19	0
Total		-18	20	-6	0

5.1 Justification for score given

Design no	Objective	Score allocated	Justification for the score
Design 1	Safety	--	Complex system makes it less user friendly
	Ease of use	0	Has almost same physical dimensions as datum
	Portability	-	Use of materials(aquatic)wont work
	Use of standard parts	0	It's mechanisms are almost same as datum
	Cost	-	It requires more space and contains parts which are difficult to install
	Maintenance	+	It requires less maintenance than datum
Design 2	Safety	+	Simple system makes it better than datum in terms of user friendly
	Ease of use	0	Has almost same physical dimensions as datum
	Portability	+	Simple system and musical instrument makes it more aesthetic than datum
	Use of standard parts	++	continuous spraying of water and sound makes it more effective
	Cost	-	It requires more space and contains parts which are difficult to install
	Maintenance	0	It has same components as datum
Design 3	Safety	+	It's easy to use compared to datum
	Ease of use	0	It is same datum
	Portability	-	The complex system makes it look dull
	Use of standard parts	--	it less effective
	Cost	+	It's design is same as datum
	Maintenance	0	It has same number of components as datum
Design 4	Safety	Datum
	Ease of use	Datum
	Portability	Datum
	Use f standard parts	Datum
	Cost	Datum
	Maintenance	Datum

5.2 Selected Design

Concept 3

5.3 Product Architecture

5.4 Function Clustering

5.5 Interaction Between Subsytems

SL. No.	Subsystem
1	Blooming unit
2	Glowing unit
3	Sensing unit

Interaction between subsystems

Blooming unit	Glowing unit	Sensing unit
spatial	yes	yes
data	yes	yes
material	no	no
--------	--	--
Glowing unit	Blooming unit	Sensing unit
spatial	yes	yes
data	yes	yes
material	no	no
--------	--	--
Sensing unit	Glowing unit	Blooming unit
spatial	yes	yes
data	no	no
material	no	no
--------	--	--