3. The Acquisition Lifecycle

System Revision ID ASEMS Document Version Effective From State
4961 3.0 09/01/2017 - 00:15 Extant
3.0.1. The Acquisition Lifecycle

The Acquisition Lifecycle of a Product, System or Service is linear in approach with a clear start to the process and a clear end, but the lifecycle in between is often utilised more than once as a Product, System or Service is developed during each stage.  This development is in turn driven by the requirements that the Product System or Service is acquired to deliver.  There are many such Lifecycle models and the MOD uses the 6 phase CADMID/T Lifecycle.

The term CADMID/T from the initial letters of its six phases, Concept, Assessment, Demonstration, Manufacture, In-Service, Disposal/Termination, is characterised by approval points generally at either end of the Assessment phase.

3.0.2. CADMID/T Proportionality and Interaction

Each of the six acquisition phases involves executing the plan agreed in the previous phase, reviewing the outcome, and planning for the remaining phases. These phases have a typically linear progression; however each life cycle phase constantly informs all phases in the CADMID/T cycle.

The relationship between each phase shows movement both ways throughout the application of the process;  this reflects how constant review and adjustments to a Product, System or Service require the application of previous stages again; for example, although the Disposal phase relates to how a Product System or Service is disposed of at the end of its life, the thought behind that disposal plan should be considered at the concept phase and constantly updated throughout each subsequent phase.

3.0.3. Sustainable Procurement

The POEMS performs a crucial role in ensuring that the MOD meets its sustainable development and sustainable procurement goals. Equally, sustainable development and sustainable procurement activity will enhance the POEMS activities.  For example, the outputs of a POEMS assessment undertaken during the “Concept” lifecycle stage can inform sustainable procurement activity and consequently eliminate or reduce anticipated environmental impacts within the procurement cycle (targeted contract management and enhanced design options etc.). 

For further information and tools relating to sustainable development and sustainable procurement please refer to the Green Book.

In addition, The Ministry of Defence Climate Change and Sustainability Strategic Approach seeks to inspire all those in and connected to defence through three interlocking ambitions, set around adaptation and resilience, sustainability and net zero, and global leadership. 

3.1. Version Control

Version 2.3 to 3.0 Uplift

Major uplift from the Acquisition System Guidance (ASG) to online version.