Mapping of Datrix software metrics set to ISO 9126 Maintainability sub - characteristics

The mapping of draft standards work in the area of product quality measurement to industry practice has lead to a discussion on the importance of the previous knowledge of the design and support environment is necessary for correct interpretation of static source code metrics. We have found no intersection between the proposed internal metrics of the ISO9126 draft standard and the one extracted with our tool (Datrix). This has lead us to present a mapping and rationale for each Datrix Domain for the four ISO 9126 maintainabilty sub-characteristics.