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FR1: Supports a jigsaw in position to cut
FR2: Connects securely to the base
FR2-1: Easy to remove
FR3: Guides wood/cutting material
FR3-1: Easy to operate
FR4: Collect sawdust
FR4-1: Guide sawdust
FR4-2: Clean sawdust
FR4-3: Contain sawdust
DP1: screw holes on work table for mounting jigsaw
DP2: 2-piece lock system
DP2-1: Ring that attaches to the bucket
DP2-2: Clip that is attached to the worktable
DP3: Circular table
DP3-1: Flat surface (z-axis guide)
DP3-2: see-through table with grids (x-y-axis guide)
DP4: 5-gallon bucket
DP4-1: Dust chute
DP4-2: ShopVac attachment
Figure 1: Axiomatic Design Matrix (Main Level)
Figure 2: Axiomatic Design Matrix (Sub Level)
From Figure 1, we can determine that main level alone is an uncoupled design since the matrix resulted in a diagonal design matrix. From Figure 2, we can determine that is gets a little more complicated. As a result the matrix is a coupled design since there are a larger number of DPs compared to FRs. The matrix resulted in coupled design since DP2 turned out to be solution for FR2 and FR42. I do not believe this is necessarily a bad design since on the main level the axiomatic model matrix is uncoupled. However, to improve our design, we must consider the structure and the interrelationship of sub-level functional requirements and design parameters.
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