ISO 22900-3:2009 defines an object-oriented programming interface, the objective of which is to be able to implement server applications used during the design, production and maintenance phase of a vehicle communication system which are compatible with each other and therefore exchangeable.
A server compliant with ISO 22900-3:2009 has three function blocks:
- M: measurement,
- C: calibration, and
- D: diagnostics.
A more detailed description of the server API is given in the Programmers Reference Guide.