Teaching is changing in deep, due to, on one hand, the evolutions of the society expectations and, on another hand, the widely spreading of new technologies. By the way, teachers and trainers need now to structure and formalize their internal designs and should become designers but do not have the competence. We aim to help them during the instructional design process. In that way we propose some methods and tools to support the scenario design activity and the implementation of the resulting models. We present an adaptive user-centered pattern-based learning design approach and the editor tool to support it. A case study is proposed to illustrate the design process.