31. In undertaking the Stage 1 assessment, the project team will need to be aware of the following constraints for both the qualitative and quantitative assessments:
∙ Innovation will be difficult to model - until the market has proposed innovative solutions, their costs and benefits will be unknown. For large unique projects, potential for innovation should be considered as part of the sensitivity check process.
∙ The MOD evidence base is currently limited and may be of questionable quality. Unique projects may have difficulties in establishing the depth and level of evidence required. However, absence of evidence will not, in itself prevent these projects being taken forward.