Thesis Abstract Software process assessments are currently being conducted by organisations using de facto assessment standards such as ISO/IEC 15504, ISO 9001, CMM and BOOTSTRAP. These assessment standards require practical tools and support mechanisms to enable them to be effective and efficient in their execution. This thesis is a study of the functional composition of such automated tools and investigates the viability of creating mappings between the software process models that would allow the assessment data to be translated between models. The result is a model for creating automated assessment tools and a methodology for using data mappings to translate and compare assessment data between software process models in these assessment tools.