5. CONCEPT EVALUATION AND PRODUCT ARCHITECTURE - Q-div-Engg-Exploration-2026-27-Odd/Repo-14 GitHub Wiki

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Design Objectives	Weights	Design 1	Design 2	Design 3	Design 4	Design 5
Safety	9	Datum	-	+	-	+
Easy to use	7	Datum	+	+	+	+
Portability	5	Datum	0	0	-	-
Use of standard parts	6	Datum	+	+	+	0
Cost	6	Datum	+	+	+	-
Score(+)		0	19	28	19	16
Score (-)		0	9	0	14	11
Total		0	10	28	5	5

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DESIGN NUMBER	OBJECTIVE	SCORE ALLOTED	JUSTIFICATION FOR GIVEN SCORE
1	Safety	Datum	-
	Ease of use	Datum	-
	Portability	Datum	-
	Use of standard parts	Datum	-
	Cost	Datum	-
2	Safety	-	Less safe – rotating brush rollers are exposed and may come in contact with the user during loading/unloading.
	Ease of use	+	More easy – simple food inlet, spray nozzles and rotating brushes provide straightforward washing operation.
	Portability	0	Similar to datum – compact structure but no dedicated wheels or carrying arrangement.
	Use of standard parts	+	Uses standard parts – water pump, motor, spray nozzles, pipes, filter and transparent lid are readily available.
	Cost	+	Lower cost – simple brush-roller mechanism and fewer electronic components reduce construction cost
3	Safety	+	More safty- Machanism is all inside the container
	Ease of use	+	More easy – perforated drum provides continuous washing and control unit simplifies operation.
	Portability	0	Similar to datum-
	Use of standard parts	+	Uses standard parts – motor, pulley, belt, pump, filter and controller are easily available.
	Cost	+	Lower cost – simple drum and pulley mechanism can be manufactured economically.
4	Safety	-	Less safe – exposed spiral brush rollers create a possible contact hazard.
	Ease of use	+	More easy – rotating rollers and spray nozzles provide continuous washing
	Portability	-	Less portable – frame, water tank, pump and basket make the machine bulky.
	Use of standard parts	+	Uses standard parts – rollers, wheels, pump, pipes and spray nozzles are commonly available.
	Cost	+	Lower cost – simple mechanical roller arrangement reduces construction cost.
5	Safety	+	Safer – enclosed food basket and controlled oscillating motion reduce exposure to moving parts.
	Ease of use	+	More easy – removable basket makes loading and unloading convenient.
	Portability	-	Less portable – frame, water tank, pump and basket make the machine bulky.
	Use of standard parts	0	Similar to datum – uses standard pump, filter and nozzles, with additional oscillating parts.
	Cost	-	Higher cost – additional spray-arm and oscillating mechanisms increase cost.

## SELECTED DESIGN ## FUNCTIONAL CLUSTERING

Activity 2.2 : Subsystem List

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Column1	Column2
SL. No.	Subsystem
1	Washing function unit
2	Control function unit
3	Drainage,safety function unit

## INTERACTION BETWEEN SUBSYSTEMS

5.6.1

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Subsystem 1	Subsystem 2	Subsystem 3
Spatial	Yes	Yes
Data	Yes	No
Material	No	Yes

5.6.2

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Subsystem 2	Subsystem 1	Subsystem 3
Spatial	Yes	Yes
Data	Yes	Yes
Material	No	No

5.6.3

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Subsystem 3	Subsystem 1	Subsystem 2
Spatial	Yes	Yes
Data	No	Yes
Material	Yes	No