4.B.1 JUSTIFICATIONS :

Design Idea 1 :

Objectives	Score allocated	Justification of score
Portability	-3	This machine isn't portable as that of datum
Safety	4	This machine can assure you the safety same as that of the datum
Aesthetics	5	For external look, this device is good enough when compared with datum
Cost	-2	With respect to cost management device costs high in market because of its external look
Ease of use	2	This device can launch the ball easily
Maintenance	3	This machine don't require much maintenance
Space consumed	-3	This device would consume more space than the datum

Design Idea 2 :

Objectives	Score allocated	Justification of score
Portability	-2	The machine is not portable as that of datum
Safety	3	The machine's safety factor is good
Aesthetics	-1	Machine is not aesthetically appealing as compared to datum
Cost	4	The device cost is bearable
Ease of use	-3	Its not so easy to use as compared to datum
Maintenance	2	It is easy to maintain because of its small size
Space consumed	-1	The space consumed is a little more compared to datum

Design Idea 3 :

Objectives	Score allocated	Justification of score
Portability	-2	The machine is heavy compared to datum
Safety	2	The machine is safe to use
Aesthetics	-3	The machine look is not so good as compared to datum
Cost	3	The cost can be managed
Ease of use	1	The device is somewhat complicated to use
Maintenance	3	The device is easy to maintain
Space consumed	-1	The space consumed is a bit more compared to datum

Design Idea 4 :

Datum.