This is a great topic Leando. I am not sure about your areas of interest. But there are three vital questions in this area, you may focus on one of them:
1. What makes a competence-based curriculum?
2. What changes should be introduced in teaching as you introduce a competence-based curriculum?
3. What type of assessment should be used in a competence-based curriculum?
These are not simple questions, and I hope you best of luck with your work.
In my research I've found that the definition of which competences to incorporate is actually a difficult task. Research into competence profiles usually asks for important competences, missing some essential ones.
Even the usual setup of first contacting a group of experts to compile a list of relevant items/competences does not help. We have to ask for defining or critical competences.
I have done a comprehensive course on 'competency based education and academic quality assurance' through Udemy.com. Its a broad topic, therefore focus yourself on becoming as much specific as you can to target your area of research, developing a hypothesis, and than creating your research question.
Topics can be like:
How to align learning activities with the learning objectives/outcomes?
What is the effective assessment strategies for competency based learning?
How to write application level learning outcomes for your lesson/course and higher order learning activities?
Why and how competency based education is different from traditional educational systems?
Differentiate between the role of instructor and the learner in a competency based education and traditional teaching/learning process?
I would suggest analyzing the fundamental competencies, designing learning objectives/outcomes, learning activities and also align the assessment strategies can produce good questions for you out of these. This would help you identify and end you up at the right spot for your research topic.
I work in a professional training institution in Brazil (SENAI - National Service of Professional Apprenticeship) and we have the notion of competence (Delors, Perrenoud, Tardif) for professional education. We developed a methodology that uses learning situations so that the content is the basis for the development of competences. In fact, we develop technical, social, organizational, and methodological skills. That is why competences can only be assessed in the world of work and not in educational processes. In schools or universities, we have students involved in the teaching and learning process, rather than competent professionals.