
Source: Information Engineering (1989), p. 1; cited in Karl E. Kurbel (2008) The making of information systems [electronic resource]. p. 176
Source: Object-oriented modeling and design (1990), p. 155; as cited in: Roger Chiang et al (2009, p. 165)
Source: Information Engineering (1989), p. 1; cited in Karl E. Kurbel (2008) The making of information systems [electronic resource]. p. 176
Source: 1940s-1950s, Models of Man, 1957, p. 198; Cited in P. Slovic (1972, p. 2).
Source: Object-oriented design: With Applications, (1991), p. 141
Source: A Brief History of Time (1988), Ch. 12
Context: Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe? The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?
Peter Bernus (2003) "Enterprise models for enterprise architecture and ISO9000: 2000." Annual Reviews in Control 27.2 : 211-220.
"A Republic, If You Can Keep It" https://web.archive.org/web/20140327090001/http://www.thatsmags.com/shanghai/articles/12321 (2013) (original emphasis)
Source: Systems Engineering Tools, (1965), p. 113; As cited in: Alberto Ortiz (1992, p. 12-13)
James Rumbaugh, Ivar Jacobson & Grady Booch (1998) The Unified Modeling Language Reference Manual. p. 1
James Rumbaugh, Ivar Jacobson, & Booch (1999) The Unified Modeling Language Reference Manual. p. 1