4.B. JUSTIFICATIONS:

Design idea 1:

Objective	Score given	Justification
Portability	0	In portability this machine is same as compared to the datum but height adjustability lags in this machine.
Safety	0	This machine stands well good in safety as the parts which might cause any harm is enclosed in doom like box container.
Aesthetics	5	When we compare with aesthetics this machine leads from all other machines as it can be done with a material which requires less lubrication and quite have good looking.
Cost	-7	As in this we are focusing more on aesthetics hence this requires more cost to manufacture.
Ease of use	4	Easy to launch the shuttle cocks with durable storage and easy to function.
Maintenance	0	This machine is easy to maintain as it does not require repetitive monitoring and due to use of well equipped parts.
Space consumed	-3	It requires more space as the doom used is big and parts used to build the machine is quite large.

Design idea 2:

Datum.

Design idea 3:

Objective	Score given	Justification
Portability	-9	It is heavy to carry and it is not much portable.
Safety	-8	It is not safe because it is not properly covered by box, spinning wheel and motor are opened at all.
Aesthetics	0	Due to use of conveyer belt it creates lubrication so it make less impact on aesthetics.
Cost	-7	It consist of standard parts so the cost is more.
Ease of use	0	It faces some difficulty in sliding and launching of shuttlecock as we use conveyer belt for cocks to move.
Maintenance	6	It is easy to maintain as it is easy to use and due to use of standard parts which guarantees good for maintenance perspective.
Space consumed	3	It requires more space as the machine is build with conveyer belt for sliding mechanism

Design idea 4:

Objective	Score given	Justification
Portability	-9	It is not easy to move from one place to another place.
Safety	-16	It cannot be closed in a safety case as it has a conveyer belt(long).
Aesthetics	-5	As the machine is not well closed in a doom and due to conveyer belt it creates lubrication so it make less imapct on aesthetics.
Cost	0	The cost of this design is similar to the rest.
Ease of use	0	The usage is nothing different than others.
Maintenance	0	It is easy to maintain.
Space consumed	-3	It's size becomes large as conveyer belt is used.