Team Vision for Detailed Design Phase
- Proof of Concept/Feasibility
- Finish Online Training
- Develop Form Models
- Buy Prototyping Supplies
- Detail Test Plans
- System/Subsystem/Part Design
- High Level Flowchart
- Bill of Materials
- Finalized System Design: All Functions and Components are Planned
- Update System Architecture and Bill of Materials
- Updated Functional Decomposition
- Updated Requirements
Finalized RequirementsBased on feedback from our Guide and Customer, Requirements Definitions have been updated to more accurately represent the desires of the customer.
Function DecompositionThe Function Decomposition breaks down the device by increasingly precise levels of "how" a function will be supplied.
Customer RequirementsCustomer Requirements define the end result of the product.
Quality (Engineering) RequirementsQuality Requirements define how the end result will be confirmed.
House of QualityThe House of Quality has been updated to reflect the changes in requirements. Again, the HoQ ensures all requirements are covered.
Updated Requirements Spreadsheet can be found here
Prototyping, Engineering Analysis, SimulationPrototyping was done in the form of foam shapes, 3D printed models, and our new mannequin, Buddy, who helped us develop our Harness system.
Drawings, Schematics, Flow Charts, SimulationsAlmost all features of our product have been artfully sketched by our designer, Mick. The first image below shows a total deconstruction of our proposed Harness and Track Design for carrying the device and moving it from the stored position on the back to the use position on the front.
Second, the design for the case has been worked out, including what shape it should be and the layers involved.
Finally, the crossbar system was developed to integrate the device with the harness and track. The crossbar acts to mount the device to the track, and also acts as a table stand when disconnected.
Use CycleTo ensure all aspects of product use are considered, a user cycle was developed. This visually lays out the operations that the user must perform and the positions that the tablet will be in.
System DesignAs more details are added to our concepts, the overall architecture of the system is becoming more specific. The system architecture shows all components and how they fit together.
Input and Source
- Selected Concepts
- Feasibility Models
- System design and interface definitions
Output and Destination
- Complete hierarchy of design files from system level down to components
- Bill of Materials
- Software design that specifies coding requirements
- Test plans
Bill of Material (BOM)The BoM was developed from the System Architecture above. This spreadsheet shows all parts and sub-assemblies with their unique part number, and details material selection and manufacturing process.
The full spreadsheet can be found here
Input and Source
- Design Files.
Output and DestinationCompleted BoM and Budget
Test PlansPreliminary Testing comprises of computer simulations and engineering analyses to ensure proper and safe function of the device. Human testing will be conducted in three stages, excluding free-form opinion-based feedback.
Stage 1: Testing with neuro-typical college students Stage 2: Testing with adults on the Autism Spectrum Stage 3: Testing with children on the Autism spectrum
Each stage of testing will comprise of similar flow.
Overall Flow of Testing:
- Exploration Period (5 minutes)
- Free play with device
- Task Period (10 minutes)
- Performing a series of tasks
- Survey Period (10 minutes)
- Answering survey questions via tablet
Full text of the Test Plans can be found here
Inputs and Source
- Engineering Requirements.
- Test standards.
- Feasibility Models.
Outputs and Destination
- Report that summarized the degree to which Eng Reqs are satisfied.
- Assessment of accuracy of feasibility models.