State Basis - Any combination list of system or object properties which is used as a basis  to describe the state of any object(s) or system(s). In theory, the basis could be infinite, but is limited in practice by the things that are determined to be of practical importance.

• For example, an object which has a mass of 10 kg and has an average temperature of 35 degrees Celsius may be described with the state descriptor (10 kg, 35 deg C) if the state basis has been defined as  (mass, average temperature).

• For a machine, the nominal state basis includes the switches and parameters that are user selectable, but the actual basis also includes geometric error types (such as carriage yaw), uncontrolled external parameters (such as ambient temperature),   etc. An example could be (programmed feed rate vector, actual feed rate vector, X carriage scale temperature, X carriage yaw, spindle speed, depth of cut, width of cut, etc.....)