In the present technique, health of a test object such as a machine part is determined. In the technique, a first scan of the test object is acquired. From the first scan, geometrical data of the test object is extracted. A base match value is determined by comparing the geometrical data so extracted to geometrical data of the geometrical specification. Subsequently, after a time interval, a second scan of the test object is acquired. From the second scan, geometrical data of the test object is extracted. A test match value is determined by comparing the geometrical data so extracted to geometrical data of the geometrical specification. Finally, the base and the test match values are compared to determine the health of the test object. The geometrical data represents a physical aspect or feature of the test object. The health of the test object facilitates predictive maintenance of the test object.
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