“…See, in particular, Gregory (1990Gregory ( , 1992, Midgley (1990aMidgley ( ,b, 1992aMidgley ( ,d, 1995aMidgley ( , 1996c, Mansell (1991), Mingers (1992bMingers ( -d, 1993, Tsoukas (1992), Jones (1993), Dutt (1994) and Sutton (1995). However, in consulting these, it will be important to read several replies that have also been written in defence of the System of Systems Methodologies: see, for example, Jackson (1992Jackson ( , 1993a and Schecter (1993).…”