@INCOLLECTION\{IMM2003-0540, author = "D. Bj{\o}rner", title = "What is a method? An Essay on some aspects of software engineering.", year = "2003", month = "jan", pages = "175-203", booktitle = "Programming Methodology", volume = "9", number = "", series = "", publisher = "Springer-Verlag", address = "N.Y., New York", edition = "", url = "http://www2.compute.dtu.dk/pubdb/pubs/540-full.html", abstract = "We examine some methodological principles and techniques of modeling such domain facets as: Intrinsics, support technologies, management \& organisation, rules \& regulations, and human behaviour. For some of these we give example (formal) descriptions; for others we formalise the principles and techniques." }