Patterns — mobile

• Ambient notice

  Provide an ambient notice (unobtrusive, non-modal) when location is being accessed to increase awareness of ongoing tracking.

• Active broadcast of presence

  Users may choose actively when they want to share presence information, to increase both the relevance of, and control over, sharing.

• Asynchronous notice

  How can a service effectively provide notice to a user who gave permission once but whose information is accessed repeatedly (perhaps even continuously) over a long period of time? Proactively notify the user after the time of consent that information is being tracked, stored or re-distributed.