Documentation is the set of all documents, which are all sources containing information that helps to make decisions, communicate decisions taken, record matters of interest to the organization or the individual. It has as a characteristic to gather written information accumulated in a successive series of annotations, when they concern an organization or an individual, they assume the characteristic of document. The set of documents becomes the documentation for commercial, industrial, legal, school, etc. purposes.
You can observe how challenging institutes are by taking surveys and then see how difficult summer programs are to students. Compare and contrast your results to see what you get.