Assign Weights to Objectives

Sl NO	OBJECTIVES	WEIGHTS
1	Safety	8
2	Portability	6
3	User friendly	8
4	Semi automatic	5
5	Elegant look	3

Pugh Chart for Concept Design Selection

Sl NO	OBJECTIVES	SCORES	CONCEPT DESIGN 1	CONCEPT DESIGN 2	CONCEPT DESIGN 3	CONCEPT DESIGN 4
1	Safety	8	Datum	0	+	+
2	Portability	6	Datum	+	-	-
3	User friendly	8	Datum	-,-	-	+
4	Semi automatic	5	Datum	0	0	+
5	Elegant look	6	Datum	+	+	+,+
	Positive Score		0	12	14	33
	Negative Score		0	-16	-14	-6
	Total Score		0	-4	0	27

SELECTED DESIGN [CONCEPT 4]

FUNCTION CLUSTERING

SUBSYSTEM LIST

Sl NO	Subsystem
1	DRAWING UNIT
2	PEN HOLDING UNIT
3	INDICATING UNIT

INTERACTION DETAILS

DRAWING UNIT

INTERACTION	PEN HOLDING UNIT	INDICATION UNIT
SPATIAL	YES	YES
DATA	YES	YES
MATERIAL	YES	NO

PEN HOLDING UNIT

INTERACTION	DRAWING UNIT	INDICATION UNIT
SPATIAL	YES	YES
DATA	YES	YES
MATERIAL	NO	NO

INDICATION UNIT

INTERACTION	DRAWING UNIT	INDICATION UNIT
SPATIAL	YES	YES
DATA	YES	YES
MATERIAL	NO	NO