PUGH CHART

Assigning weights to the objectives :

objectives	Weights
Portability	8
Ease of use	10
Aesthetic in looks	9
Semi Automatic in function	6
Detachable and Rearrangable	5

Pugh chart for the 4 designs :

Design objectives	Weights	Design 1	Design 2	Design 3	Design 4
Portability	8	+	++	-	Datum
Ease of use	10	-	++	+	Datum
Aesthetic in looks	9	-	+	+	Datum
Semi Automatic in function	6	+	++	++	Datum
Detachable and Rearrangle	5	-	+	-	Datum
Score(+)		13	52	42
Score(-)		24	0	2
Total:		-11	52	40

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5.1 JUSTIFICATION FOR SCORE GIVEN

Design.NO	Design Objective	Score Allocated	Justification for the Score Given
(1.)	Portability	1	It is small in size and is easy to carry.
	Ease of Use	-1	It is not easy to use errors can be made while handling it.
	Aesthetic in looks	-1	It is not as good looking design as that of the other designs.
	Semi Automatic in function	1	It is a design in which the planes are given as input manually, there will be automatic launch of planes.
	Detachable and Rearrangeable	-1	In this design everything is fix nothing is detachable.
(2.)	Portability	2	It is easy to carry because of its size.
	Ease of Use	2	It is very simple to use and operate.
	Aesthetic in looks	1	It is good looking design compared to the 1st design.
	Semi Automatic in function	2	It is fully automatic, Only paper planes are given as input.
	Detachable and Rearrangeable	1	It is also not fully detachable but some parts are.
(3.)	Portability	-1	It is little bit big in size and can be a heavier one.
	Ease of Use	1	It is also easy to use and operate it like the 2nd design.
	Aesthetic in looks	1	It is also very stylish in looking and is very attractive design.
	Semi Automatic in function	2	It is a fully automatic design which is time efficient.
	Detachable and Rearrangeable	-1	All the parts of this design are not detachable and are fixed and delicate.
(4.)	Portability	-	-
	Ease of Use	-	-
	Aesthetic in looks	-	-
	Semi Automatic in function	-	-
	Detachable and Rearrangeable	-	-

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5.2 SELECTED DESIGN-PAPER PLANE LAUNCHING MACHINE USING ROLLER MECHANISM

MECHANISM-The D.C motors are connected to batteries through a simple circuit,the rollers are assembled to D.C motors,which are kept side-by-side as shown in figure when paper planes are kept between these rollers due to rolling of rollers by the sides of the plane,the plane gets launched

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5.3 PRODUCT ARCHITECTURE

5.4 FUNCTIONS CLUSTERING

SUB-SYSTEM LIST:

Slno.	Sub-systems
1	Plane Handling Unit
2	Plane Launching Unit
3	Indications Unit

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5.5 INTERACTION BETWEEN SUBSYSTEMS:

1. PLANE HANDLING UNIT:

Plane Handling Unit	Plane Launching Unit	Indications Unit
Spatial	Yes	No
Data	No	Yes
Material	Yes	No

2. PLANE LAUNCHING UNIT:

Plane Launching Unit	Plane Handling Unit	Indications Unit
Spatial	Yes	Yes
Data	Yes	Yes
Material	Yes	No

3.INDICATIONS UNIT:

Indications Unit	Plane Handling Unit	Plane Launching Unit
Spatial	Yes	Yes
Data	Yes	Yes
Material	No	No