This deliverable reports the results of the first evaluation of the MUSA framework. According to the evaluation plan and methodology defined in deliverable D5.1, it includes the results of the evaluation on MUSA Key Results that followed a double evaluation approach: i) the requirement coverage-based approach, and ii) the user centred evaluation carried out in the project case studies. The requirement coverage evaluation assessed the fulfilment of the requirements (initially defined in deliverable D1.1) by the initial version of the MUSA Key Results. The user-centred evaluation consisted in the analysis of the quality metrics (initially defined in deliverable D5.1) on MUSA Key Results that give insights about how well they satisfy the user needs in the project case studies. The results of this initial evaluation will drive the work in all technical WPs for the improvement of the individual Key Results of the project and the framework as a whole.