After your course is over, it’s good to evaluate the whole assessment process in order to improve the quality of the assessment and your teaching in general. This can serve as input for the design stage of the assessment for this course, but also for other courses. This is why the assessment process is cyclical.
It’s helpful to involve your colleagues in the evaluation of the assessment process. What went well, and what could be improved next year? How did students evaluate the assessment? Do any changes need to be made in the course learning outcomes, the assessment, or the teaching? It helps to make a list of points for improvement right after your course ends.