This course focuses on the pre-contract activities generally known as Source Selection within a Defence material context. Physical systems, logical systems and Software, require different Requirements Engineering methodologies. The resulting specifications provide the foundation for the tendering process. The management of the tender process occurs within a legal and regulatory framework. The evaluation of tenders goes beyond traditional multiple criteria decision analysis to include risk. The evaluation results provide the foundation for structured negotiations. The data management required to support all phases of Source Selection is significant. Commercial software dedicated to the various aspects of Source Selection will be analysed. The tendering process occurs within a political environment which must be recognised and accounted.