4.1 Assign weights to the objectives

Sl No.	Objectives	Weights
1.	it should stack domino one after the other	8
2.	the domino lego should stack in any pattern	5
3.	it should run medium fast	4
4.	its dimensions should be not too large	3
5.	it should be easy to use	6
6.	it should have visible refill for the machine	2
7.	it should have manual refill option	7
8.	it should have remote control system	9

4.2 PUGH CHART

Slno.	Design objectives	Weights	Flat lego stacking machine	One after one lego stacking machine	Adjacent stacking
1	it should stack domino one after the other	8	Datum	++	++
2	the domino lego should stack in any pattern	5	Datum	-	+
3	it should run medium fast	4	Datum	+	++
4	its dimensions should be not too large	3	Datum	+	+
5	it should be easy to use	6	Datum	+	++
6	it should have visible refill for the machine	2	Datum	++	+
7	it should have manual refill option	7	Datum	+	++
8	it should have remote control system	9	Datum	+	++
9	Score(+)	--	0	49	78
10	Score(-)	--	0	-5	0
11	Total	--	00	44	78

Justification for the scores given

Slno.	Design name	Objective	Score allocated	Justification for the score
(A)1	flat lego stacking machine	it should domino one after the other	datum	________________
2	-----	the domino lego should stack in any pattern	Datum	_________________
3	-----	it should run medium fast	Datum	_____________
4	-----	its dimensions should be not too large	Datum	___________
5	-----	it should be easy to use	Datum	_________
6	-----	its should have visible refill for the machine	Datum	________
7	-----	it should have manual refill option	Datum	________
8	-----	it should have remote control system	Datum	________
(B)1	-----	one after the other domino lego machine	14	it properly stacks the domino one after the other
2	----	the domino lego should stack in any pattern	-6	it cant stack domino in any pattern
3	-----	it should run medium fast	5	it can run medium fast as we have controller
4	------	its dimensions should be not too large	4	its dimensions are bit large bcoz of its storage capacitor
5	-------	it should be easy to use	10	it is easy to control
6	------	its should have visible refill for the machine	16	it has a refill visible in the top
7	------	it should have manual refill option	9	we can easily refill manually
8	-------	it should have remote control system	3	its remote control costs expensive
(c)1	Adjacent stacking	one after the other domino lego machine	16	it stacks adjacently with equal distances between them
2	----	the domino lego should stack in any pattern	5	it can stack in geometric shapes
3	-----	it should run medium fast	8	it is medium fast favourable machine
4	------	its dimensions should be not too large	3	it quiety handy and less in size
5	-------	it should be easy to use	12	it is too easy to use
6	------	its should have visible refill for the machine	2	it has semi visible refil capacity
7	------	it should have manual refill option	14	it is manually loaded
8	-------	it should have remote control system	18	it is only controlled by RC

Selected Design : Adjacent Stacking

4.5 Subsystem list

SI NO	Subsystem
01	Accept the start command
02	Loading of the lego-dominos
03	selecting the direction
04	Turn off the machine

4.6 Interaction Details

Accept the start command	Loading of the lego dominos	selecting the direction	turn of the machine
spatial	no	no	no
data	no	yes	yes
material	no	no	no

Loading of the lego dominos	Accept the start command	selecting the direction	turn of the machine
spatial	no	no	no
data	yes	yes	yes
material	no	no	no

selecting the direction	turn of the machine	Accept the start command	Loading of the lego dominos
spatial	no	no	no
data	yes	yes	no
material	no	no	no

turn of the machine	Loading of the lego dominos	Accept the start command	selecting the direction
spatial	no	no	no
data	no	yes	yes
material	no	no	no