In scope is the DMIS language for programming coordinate measurement machines (CMM) and therefore includes all information necessary to precisely and completely specify the measurement of some item with a particular measurement device or system. The item measured may be any quality-related characteristic, either dimensional or non-dimensional and generating a variable, attribute, or binary value. In the case of geometrical measurements, such a process plan will specify precise points and paths and particular measurement devices and sensors. Sometimes this process plan has been called “a low-level measurement process plan” or alternatively a “part program.” The methods and algorithms used to compute abstract geometric elements (e.g., radius) from measured points may be specified in the detailed plan. The QME WG will be responsible for maintaining the ANSI/ISO DMIS standard and ensure that it is in harmony with the QIF specifications and the I++ DME Interface specification.
Out of Scope:
• Measurement results (measurement “actuals”), which is in the purview of the QMResults WG
• Calibration and precise error map information for the measurement device and sensor
The DMIS language is pervasive in the industry and there is therefore little call for a radical departure from DMIS, particularly given the massive installed base of DMIS part programs.
Approach: To get into harmony with the new QIF approach, DMIS will need non-trivial redefinition. After this effort, new versions of DMIS will have to be generated as the nature of dimensional metrology changes and improves.
New versions of DMIS submitted and approved by ANSI and ISO.