6.1 Following the identification and description of all costs, benefits and risks, their valuation where feasible, and their testing through sensitivity and scenario analysis, the best option should be selected. Transparency is important at this stage, so that it is clear on what basis decisions are taken. Judgement over and above the component parts of the analysis is always called for in making decisions, but the following guidelines should be applied.
6.2 Once an option has been selected, it will need to be refined into a solution. Consultation is important at this stage. Further consideration will need to be given to the implementation of the proposal, including the involvement of the private sector, procurement options and processes, and the programme and project management arrangements that may be required.