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Thoughts

Advantages:

  • current design has alerts fired when certain events occur. There can be multiple alerts per interaction which can cause a number of issues:
    • alerts can pile up especially if user interacts rapidly
    • may not be relevant by the time alerts are delivered
    • sonification and screen reader responsiveness may not be in sync
  • Using a pick-up and release interaction would simplify text alerts:
    • there would only be 2 alerts per interaction
    • better control over relevance as the alerts occur at predictable times

Disadvantages:

  • Adds another step to the interaction.

Example interaction with Pick-up and Drop

First time interacting

  • Pressed tab.
    • Focus moved to magnet
    • Button label: "Grab magnet."
  • Press enter.
    • Text alert: "Grabbed. (Proximity to coils). (Play area location). W A S D and 1 2 3 keys move magnet. Press Space to release."
  • 1 2 3, or cursor keys pressed
    • Sonification sounds are heard
  • Press space.
    • Text alert: "Released. (Change to proximity to coils). (Change in play area location)."
    • Keyboard focus is on magnet button.

After second time interacting

  • Pressed tab.
    • Focus moved to magnet
    • Button label: "Grab magnet."
  • Press enter.
    • Text alert: "Grabbed. (Proximity to coils). (Play area location)." (shortened alert)
  • 1 2 3, or cursor keys pressed
    • Sonification sounds are heard
  • Press space.
    • Text alert: "Released. (Change to proximity to coils). (Change in play area location)."
    • Keyboard focus is on magnet button.

Proximity to coils values:

  • Above
  • Just above
  • Below
  • Just below
  • Left
  • Just left
  • Right
  • Just right
  • Inside

Play area location:

  • Top-left
  • Top-centre
  • Top-right
  • Middle-left
  • Middle-right
  • Bottom-left
  • Bottom-centre
  • Bottom-right
  • Note: There is no play area "Middle center" as the coils occupy this space.


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