You can see the seeds of agile manifesto in Crystal because it focuses on ??? (1) Frequent delivery of usable code to users, (2) Reflective improvement and (3) Osmotic communication preferably by being co-located.Here is a post by him on ???Notes on the writing of the agile manifesto???.He is a consulting fellow at Humans and Technology which he had founded. (See: His Biography page)I could not lo