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The protection of own aircraft assets against infrared missile threats requires a deep understanding of the vulnerability of these assets with regard to specific threats and specific environments of operation. A key capability in the protection of own assets is the ability to perform infrared measurements, analyse the data and construct signature models of aircraft, countermeasures and the background. The creation of such a capability is a complex task. A framework for capability development was used to identify all required elements and to ensure an optimal and complete programme. Topics covered include Personnel, Organisation, Support, Training, Equipment, Doctrine, Facilities, Information and Technology (POSTEDFIT). This paper reports on the process that was followed and its initial outcome after a two year project was concluded.