Sequence-Diagrams

Use Case 1 - Audio transcription for hearing loss

Figure 1. Use case 1 Sequence Diagram

User wants to communicate with a user that is hearing impaired

1. User will download and open the app
2. User will toggle the microphone on and speak into the recording
3. Recording will show a transcription of what was said and can be replayed

Use Case 2 - Sentence Formation

Figure 2. Use case 2 Sequence Diagram

Speech-impaired user wants to communicate with a user via AAC Board

1. User will download and open the app
2. User will press on tiles to form sentence with highlighted tiles changing upon each tile pressed
3. User will click on audio output to translate text to speech
4. AAC Board will relay text to speech

Use Case 3 - Contextual based prediction

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Figure 3.** Use case 3 Sequence Diagram

As a user, it is important that the device can display options to me based on what is being spoken by the other person in conversation

1. A parent asks their child a question
2. AAC device would pick up the question through audio input (speech to text)
3. Displays suggestive options to form a sentence that would function as a relevant response.
4. Child's mom could ask what the child wants for dinner with the board actively listening
5. Board will highlight several food word options to choose from
6. User chooses best option according to their preference
7. User plays tiles section out loud for parent to hear and acknowledge

Use Case 4 - Toggling microphone when not in a conversation

Figure 4. Use case 4 Sequence Diagram

As a user, it is important that I can toggle on and off the microphone when I am not in a conversation.

1. When the user first launches the application the microphone will be on by default for fast conversation engagement
2. If the user wishes to toggle off their microphone for any reason they can hit the button and the icon will change indicating the microphone is off