2.1 Establishing Function

Sl.No	Functions
1	Open box
2	Open the locker
3	Close locker
4	Hold the bangles
5	Close box
6	Storing in slots
7	Alert user when box open
8	Hold the box
9	Casing
10	Receive the instruction from user
11	Hold input

2.2 Function tree

2.3 Morphological Chart

Serial.No	Subfunctions	Means1	Means2	Means3	Means4
1	Accept Input From User	Fingerprint	Mobile App	RFID card	keypad
1	.		.
2	Open/Close mechanism	push-push button mechanism	push latch mechanism	Rack and pinion
2	.
3	Open/Close the box	Slider Crank mechanisms	Cabinet door open/Close mechanism	Gear mechanism	Linkage mechanism
3	.			![](
4	alert the user in case of unauthorised access	IR Sensors	Electric bell	Buzzer/ siren	Glowing of light when locker is open
4	.
5	Storing in compartments	Drawers	Slots
5	.
6	Casing	Round	Square	Rectangular
6	.

2.4 concept generation

# Design 1

Design 2

Design 3

Concept Selection

2.5 Assign Weightage to the Objectives

Objectives	Weights
Safety	10
Weight	8
Portability	4
Semi automatic	7
Daily basis	9
Using Environment friendly material	8
Cost	8

2.6 PUGH Chart

Design Objectives	Weightage	Design 1	Design 2	Design 3	Design 4
Safety	10	++	+	Datum	+
Weight	8	+	+	Datum	-
Portability	4	0	0	Datum	0
Semi automatic	7	0	0	Datum	0
Using Environment friendly material	8	-	0	Datum	0
Daily basis	9	0	0	Datum	0
Cost	8	+	++	Datum	-
Score(+)		36	34	0	10
Score (-)		-8	0	0	-16
Total		28	34	0	-6

2.7 Justification For Score Given

Design no	Design Objectives	Score Allocated	Justification for the Score
	Safety	20	Here we are making the locker to keep our precious items safe so as compare to design 3 here safety is more because we are using OTP password
	Weight	8	As our user mentioned that, the locker weight should be less so here weight is also a important factor.
	Portability	0	all 3 design can easily move to one place to another place
	Semi automatic	0	As our user mentioned that Locker should not be fully automatic and also it should not be manual, So automatic is also important and reason to 0 score because all the lockers which we design are semi automatic only.
1	Using Environment friendly material	-16	Using environment friendly material is also important because to live happily we should not use toxic materials
	Daily basis	0	As user mentioned that he will use locker daily, So it is also a important factor
	Cost	8	As our user told us his budget is 3000 so cost is also important factor here
	Score(+)	36
	Score (-)	-8
	Total	28
	Safety	10	In case of safety there is a difference in design 2 and design 3, Because push latch mechanism is better than push push mechanism
	Weight	8	As our user mentioned that, the locker weight should be less so here weight is also a important factor.
	Portability	0	all 3 design can easily move to one place to another place
	Semiautomatic	0	As our user mentioned that Locker should not be fully automatic and also it should not be manual, So Semiautomatic is also important and reason to 0 score because all the lockers which we design are semi automatic only.
2	Using Environment friendly material	0	Using environment friendly material is also important because to live happily we should not use toxic materials
	Daily basis	0	As user mentioned that he will use locker daily, So it is also a important factor
	Cost	8	As our user told us his budget is 3000 so cost is also important factor here but here cost will be more as compare to design 3
	Score(+)	34
	Score (-)	0
	Total	34
	Safety	Datum
	Weight	Datum
	Portability	Datum
3	Using Environment friendly material	Datum
	Cost	Datum
	Daily basis	Datum
	Score(+)	0
	Score (-)	0
	Total	0
	Safety	10	In case of safety there is a difference in design 4 and design 3, Because push latch mechanism is better than push push mechanism
	Weight	-8	If we compare design 4 with design 3,Design 4 is heavy
	Portability	0	all 3 design can easily move to one place to another place
	Semi automatic	0	As our user mentioned that Locker should not be fully automatic and also it should not be manual, So automatic is also important and reason to 0 score because all the lockers which we design are semi automatic only.
4	Using Environment friendly material	0	Using environment friendly material is also important because to live happily we should not use toxic materials
	Daily basis	0	As user mentioned that he will use locker daily, So it is also a important factor
	Cost	-8	As our user told us his budget is 3000 so cost is also important factor here,As compare to design 4 here cost will be more
	Score(+)	10
	Score (-)	-16
	Total	-6

2.7 Select design

After all our processess "DESIGN 2" is our final design. Because in pugh chart design 2 got more weightage than other 3 designs.

Product Architecture

Sl.No	Subsystems Identified Were
1)	Interface Unit
2)	Locking Unit
3)	Casing Unit

2.8 Function Clustering

Interaction between subsystems

Interface Unit	Locking Unit	Casing Unit
material Interaction	No	No
Data Interaction	Yes	No
Spatial Interaction	No	Yes

Locking Unit	Interface Unit	Casing Unit
material Interaction	No	Yes
Data Interaction	No	Yes
Spatial Interaction	No	Yes

Casing Unit	Locking Unit	Interface Unit
material Interaction	yes	No
Data Interaction	Yes	No
Spatial Interaction	No	No