Interfaces for operators.
WHAT USERS NEED TO SEE
Current status, immediately What requires attention Trends over time Where problems are
WHAT TO SHOW FIRST
Exceptions, not everything.
WHY
A dashboard listing every device tells nobody what to do.
WHAT MAPS PROVIDE
Spatial understanding, where devices are distributed.
WHAT TIME-SERIES CHARTS PROVIDE
Trend and context for a current value.
WHY CONTEXT MATTERS
A number alone does not indicate whether it is normal.
WHAT TO DISPLAY ALONGSIDE ANY VALUE
When it was read.
WHY
Stale data presented as current causes wrong decisions.
WHAT TO INDICATE CLEARLY
Devices that have not reported Values that are estimated or interpolated
WHAT TO AVOID
Charts with no scale Colour as the only indicator Dashboards requiring interpretation training Detail nobody uses
WHAT TO BUILD FOR MOBILE
The views operators use in the field.
WHY
They are not at a desk when they need it.
WHAT TO TEST
Whether an operator can identify what needs attention within seconds.
