5. Concept evaluation and Product architecture - P-div-2023-24-ODD/Repo-01 GitHub Wiki

5.1.1 Assign weights to the objectives :

Objectives Weights
Safety 7
Use of standard parts 6
Battery backup 4
Aesthetic 9
cost 8
Portable 9

5.1.2 Pugh chart :

Design objectives Weights Design 1 Design 2 Design 3 Design 4
Use of standard parts 6 Datum 0 ++ +
Batter backup 4 Datum + + 0
Aesthetic 9 Datum 0 ++ -
Cost 8 Datum - + +
Portable 9 Datum + ++ +
Score(+) 0 11 43 16
Score(-) 0 8 0 5
Total 0 3 43 11

5.1.3

Design no. Objective Score Allocated Justification for score allocated
1 Use of standard parts Datum
Batter backup Datum
Aesthetic Datum
Cost Datum
Portable Datum
2 Use of standard parts 0 Same as datum
Batter backup + Can run for more time than datum for given supply
Aesthetic 0 Same as datum
Cost - It is more expensive than datum
Portable + It is lighter compared o datum
3 Use of standard parts ++ It uses more standard parts compared to datum
Batter backup + Can run for more time than datum for given supply
Aesthetic ++ Looks more attractive then other designs
Cost + It is less expensive than datum
Portable ++ It is more easy to move this design comparedto datum
4 Use of standard parts + It uses more standard parts compared to datum
Batter backup 0 Same as datum
Aesthetic - Looks less attractive then datum
Cost + It is less expensive than datum
Portable + It is lighter compared o datum

5.2 Subsystem identified

  1. Motion of ball
  2. Design of maize
  3. Button operation
  4. spinning of motors

5.3 Interaction details

subsystem 1 subsystem 2 subsystem 3 subsystem 4
Spatial no no no
Data no yes yes
Material yes yes yes
subsystem 2 subsystem 1 subsystem 3 subsystem 4
Spatial no no no
Data no no no
Material yes no no
subsystem 3 subsystem 1 subsystem 2 subsystem 4
Spatial no no no
Data yes no yes
Material no no no
subsystem 4 subsystem 1 subsystem 2 subsystem 3
Spatial no yes no
Data no no yes
Material no yes no
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