Abstract: First data is accessed describing a plurality of different functional aspects of a particular software application. The first data is received from multiple different sources. Second data is accessed describing a plurality of different non-functional aspects of the particular software application, the second data received from multiple different sources. A plurality of functional scores for the particular software application is derived based on the plurality of functional aspects. A plurality of non-functional scores for the particular software application is derived based on the plurality of non-functional aspects. A quality score for the particular software application is calculated from the plurality of functional scores and the plurality of non-functional scores.