6.8.1.1.3: Provide Personal Portable Device Autonomous Guidance

This process shall provide autonomous on-line guidance when requested by the traveler from a personal portable device. It shall calculate the route using data obtained from a navigable map database stored in the traveler's personal portable device. Guidance shall be provided by the process in the form of actual instructions to the traveler, e.g. cross the road here, take the subway to a specific station. The process shall provide guidance for the shortest route, within the preferences and constraints specified by the traveler in the guidance request.

This process is associated with the Personal Information Device physical object.

This process is associated with the following functional objects:

• None

This process is associated with the following data flows:

• autonomous_traveler_guidance_accepted
• autonomous_traveler_guidance_data
• autonomous_traveler_guidance_data_request
• traveler_location_for_autonomous_guidance