[Communications in Computer and Information Science] Higher Education for All. From Challenges to Novel Technology-Enhanced Solutions Volume 832 (First International Workshop on Social, Semantic, Adaptive and Gamification Techniques and Technologies for Distance Learning, HEFA 2017, Maceió, Brazil, March 20–24, 2017, Revised Selected Papers) || An Agile Method for Developing OERs and Its Application in Serious Game Design