5. CONCEPT EVALUATION AND PRODUCT ARCHITECTURE - H-division-24-25-Even/Repo-11 GitHub Wiki

Design score.

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

Design Objectives	Weights	Design 1 (Datum)	Design 2	Design 3	Design 4
Battery Backup	9	datum	0	0	0
Ease of Use	6	datum	0	+	0
Easy Snooze Option	5	datum	++	++	+
User Friendly	4	datum	0	0	0
Cost	7	datum	-	0	+
Score (+)			0	2	2
Score (-)			1	0	1
Total			-1	+2	+1

5.1 JUSTIFICATIONS FOR GIVEN SCORE

Task 3: Justification for the scores given

Design No.	Objective	Score Allocated	Justification for the score
1	Battery Backup	DATUM	for reference
1	Easy Snooze Option	DATUM	for reference
1	User Friendly	DATUM	for reference
1	Cost	DATUM	for reference
2	Battery Backup	0	Similar to Design 1
2	Easy Snooze Option	++	Uses DC gear motor and SSR, may improve operations
2	User Friendly	0	Use of track system and clear design makes it user-friendly
2	Cost	-	Slight additional material/assembly increases cost
3	Battery Backup	0	Similar to Design 2
3	Easy Snooze Option	++	Use of track system and DC-based control helpful
3	User Friendly	+	Slight enhancements in control and feedback
3	Cost	0	Similar to Design 1
4	Battery Backup	0	Possibly same battery system
4	Easy Snooze Option	+	Use of AC system and rotary encoder slightly improves operation
4	User Friendly	0	Similar ease as Design 1
4	Cost	+	More components like AC motor & encoder raise cost

5.2 SELECTED DESIGN

5.3 PRODUCT ARCHITECTURE

Activity 2.2 : Subsystem List

SL. No.	Subsystem
1	sensing
2	mechanism
3	indication and stopping

5.4 FUNCTION CLUSTERING

5.5 INTERACTION BETWEEN SUBSYSTEMS

Activity 3 : Interaction Details

Subsystem 1 Interactions

Type	Subsystem 2	Subsystem 3
Spatial	yes	-
Data	YES	YES
Material	NO	NO

Subsystem 2 Interactions

Type	Subsystem 1	Subsystem 3
Spatial	YES	-
Data	yes	no
Material	-	yes

Subsystem 3 Interactions

Type	Subsystem 1	Subsystem 2
Spatial	NO	_
Data	YES	_
Material	YES	YES