3.1 ASSIGN WEIGHTS TO THE OBJECTIVE

Sl.no	objective	weight
1	Safety	9
2	User-friendly	8
3	Reliable	9
4	Portability	8

3.2 PUGH CHART

sl.no	design objective	weights	design 1	design 2	design 3	design 4
1	safety	9	+	*	-	-
2	User-Friendly	8	+	*	*	*
3	Reliable	9	+	+	*	*
4	Portability	8	+	+	-	-
total		34	38	36	32	32

3.3 JUSTIFICATION FOR WEIGHTS GIVEN

Design	objective	score	justification for the score
1	safety	10	high due to solenoid lock
	User-friendly	9	Single level security system
	Reliable	10	Solenoid lock is used
	Portability	9	more Portable because less equipment are used

Design	objective	score	justification for the score
2	Safety	9	--
	User-friendly	8	--
	Reliable	10	Good Quality Lock
	Portability	9	Few types of equipment are used

Design	objective	score	justification for the score
3	safety	8	can be easily exploited
	User-friendly	8	--
	Reliable	9	--
	Portability	7	Less due to more types of equipment

Design	objective	score	justification for the score
4	safety	8	double security
	User-Friendly	8	--
	Reliable	9	--
	Portability	7	Less Due to more types of equipment

3.4 Selected Design

https://i.postimg.cc/nhq39BSd/Design-1.jpg

3.5 Function Clustering

https://i.postimg.cc/9Fzs8T9Q/Smart-locker-Diagram-3.jpg

3.6 Subsystem List

Sl.No	Subsystems
1	Opening and closing Unit
2	Verification and Indication Unit
3	Control unit

3.7 Interaction Between Subsystems

Opening and Closing Unit	Verification and Indication Unit	Control Unit
Material Input	❌	❌
Data Input	✅	✅
Spatial Input	✅	❌

Verification and Indication Unit	Opening and Closing Unit	Control Unit
Material Input	❌	❌
Data Input	✅	❌
Spatial Input	✅	❌

Control Unit	Verification and Indication Unit	Opening and Closing Unit
Material Input	❌	❌
Data Input	✅	✅
Spatial Input	❌	✅