Navigation data processing system, apparatus and computer readable medium

A computer program embodied on a non-transitory computer readable medium, comprising:

• a plurality of function modules respectively causing a computer to operate as a plurality of function executing units that respectively have different functions for navigation, each of the function executing units providing a result of a processing being performed associated with the function in response to a given instruction;
• and
• an instruction module causing the computer to operate as an instruction unit that provides an instruction to each of the plurality of function executing units in a case of operating as the plurality of function executing units, and receives the result of the processing being provided in response to the given instruction,
• wherein
• the instruction module causes the computer operating as the instruction unit to execute
• providing an instruction to one or more of the plurality of function executing units according to a procedure suitable for a purpose to be accomplished as to navigation,
• outputting navigation data based on a result of a processing being provided by the selected one or more of the plurality of function executing units in response to the instruction, and
• the instruction module and the instruction module operated by another computer different from the computer have a common awareness that the function modules are selected and to be used and that the function modules are unselected and to be unused.

A navigation system comprising:

• two or more apparatuses, each of the two or more apparatuses including
• a storage unit in which a navigation program is stored, and
• a control unit implementing an operation based on the navigation program stored in the storage unit,
• wherein
• the navigation program stored in the storage units of the two or more apparatuses is a common program,
• the control unit operates as, based on the navigation program:
• a function module providing a result of a processing being performed associated with the function in response to a given instruction;
• and
• an instruction module providing an instruction to the function module and receiving the result of the processing being provided in response to the instruction;
• a plurality of the function modules are provided in each of the two or more apparatuses, the plurality of the function modules respectively having different functions for navigation,
• the instruction module provides an instruction to the selected one or more of the plurality of the function modules according to a procedure suitable for a purpose to be accomplished as to navigation, and outputs navigation data based on a result of a processing being provided by the selected one or more of the plurality of function executing units in response to the instruction, and
• the instruction modules of the two or more apparatuses mutually exchange information concerning performance of each one of the two or more apparatuses.

A navigation system comprising:

• two or more apparatuses, each of the two or more apparatuses including
• a plurality of function executing units that respectively have different functions for navigation, each of the function executing units providing a result of a processing being performed associated with the function in response to a given instruction, and
• an instruction unit that provides an instruction to each of the plurality of function executing units, and receives the result of the processing being provided in response to the given instruction,
• wherein
• each of the two or more apparatuses executes processing of the plurality of function executing units and the instruction unit, based on the navigation program stored commonly in the two or more apparatuses,
• the instruction unit provides an instruction to the selected one or more of the plurality of function executing units according to a procedure suitable for a purpose to be accomplished as to navigation, and outputs navigation data based on a result of a processing being provided by the selected one or more of the plurality of function executing units in response to the instruction, and
• the instruction units in the two or more apparatuses perform processing by selectively using the function executing units so as to suit their performance and circumstances, and complement functions of each other.