E-learning is increasingly integrated in the society culture and in business world via e-university and e-training. Goals, needs, characteristics of learners are very different. Indeed, providing adaptive system is critical for the e-learning sustainability. Nevertheless, many recent studies have shown that, on one hand, adaptivity is concretely deficient in elearning systems, on the other hand, specific measures are strongly lacking. In this paper, a measurement framework is proposed to assess adaptivity performance focusing on adaptation methods alignment with usage and business factors. The measurement generation process is described. [ABSTRACT FROM AUTHOR]