ED 2 - Sagar-I-Holennavar/sagar GitHub Wiki
Case study:
- Need statement:‘Sand art machine’
- Designers: Rachana.G, Anna.J, Sagar.H, Vilas.Desai, Sushmita.H
- Clients:
- Users: Anybody
| Questions such as | Answers | Type |
|---|---|---|
| 1.What is the budget? | The cost should not exceed 3000rs | Constraint |
| 2.What kind of drawing is expected from the machine? | Machine must be able to draw different kind of shapes | Function |
| 3.How should the machine interact with the user? | The machine should interact Via remote controls | Function |
| 4.What are the dimension limits? | The machine must be able to draw within a dimension limit of 1.2m*1.2m | Constraints |
| 5.How many shapes the machine must be able to draw? | The machine must be able to draw at least 2 shapes | Constraints |
| 6.Sand drawing should be done at a particular place or at different places? | The machine has to be portable as drawings has to be done in different places | Objective |
| 7.What’s the maximum weight the machine can be? | The machine should not exceed 2kg | Constraints |
| 8.What are the expectations from the machine? | It should be maintenance free and safe to use | Objective |
| 9.What should be the response time? | The machine must show a quick response | Objective |
| 10.How long is the machine expected to work? | Machine is expected to work for a long time hence it needs to have a good battery backup | Objective |
| 11.What should be the machine made of? | The machine should be made up of a strong metal ,as it needs to be rugged. | Objective |
Information obtained through basic research and customer interaction
| Observation and from Lit.Survey | Requirements |
|---|---|
| 1.Taking the objective “portable” into consideration so that people can carry it easily | the machines weight must be in between 1-2kg only |
| 2.artists are more enthusiastic about drawing stuff | the machine most suitable for the art lovers |
| 3.based on the cost of competing products in market | Cost of the machine should not exceed 3000rs |
| 4.taking dimension limits into consideration | The machine should not be large |
| 5.chances of damage exist since the machine needs to be portable | The machine must be rugged and have a good battery backup and must be maintenance free |
1.1:List of objectives
1.The machine has to be portable
2.The machine should have a good battery backup
3.The machine should be safe to use and maintenance free
4.The machine should show a quick response
5.The machine has to be rugged
1.2:Pair-wise comparison chart (PCC)
| Goals | Portable | Rugged | Batterybackup | Score |
|---|---|---|---|---|
| Portable | *** | 1 | 0 | 1 |
| Rugged | 0 | *** | 0 | 0 |
| Batterybackup | 1 | 1 | *** | 2 |
Priority of the objectives
1.Batterybackup
2.Portable
3.Rugged
Problem Statement 1.1:
“Design a sand art machine with a good battery backup so that it can be carried (portable ) everywhere without any charging worries.The machine should be rugged so that it prevents damage while while porting”
1.3:List of constraints
1.The cost of the machine should not exceed 3000rs
2.The machine should be able to draw within a dimension limit of 1.2m*1.2m
3.The machine must be able to draw at least 2 shapes
4.The machine should not exceed 2kg
Problem Statement 1.3:
“Design a sand art machine with a good battery backup so that it can be carried (portable) everywhere without any charging worries .The machine should be rugged so that it prevents damage while porting .Cost and weight of the machine should not exceed Rs3000 and 2kg respectively. The dimension limit for the machine to draw is 1.2m*1.2m and it should be able to draw at least 2 shapes”
1.4: List of functions:
1.The machine must be able to draw different given textures
2.The machine should be able to move .
3.The machine should interact with the user manually
Problem Statement 1.4:
“Design a portable sand art machine which interacts with the user manually and has a good battery backup, lessmaintenance issues and rugged nature .And must be able to draw at least 2 different shapes on sand. The cost and weight of the machine should not exceed Rs3000 and 2kg respectively .The machine should draw patterns within a dimension limit of 1.2m*1.2m”