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- Answers collected from literature:

- [Meyer, 1988, p.51]

- "... software must be based on ..."

- "... a well-organized software system ..."

- "... when software design is understood as ..."

- "... object-oriented designers usually do not spend their time ..."

- "The software objects will simply reflect these external objects."

- [Loucopoulos, 1994], [Dittrich, 1994],  [Davis/..., 1993] -

- [Martin,1988, p. 297]

- "An entity is something, real or abstract, about which we store data."

- [Rothenberg, 1989-Widmann, p.75,77,78,79]

- "A model represents reality ..."

- "Models are generally assumed ..."

- "Any model is chracterized by ..."

- "The referent of a model ..."

- [Charniak/McDermott, 1985, p.19]

- "But what predicates should we use ..."

- [Nilsson, 1991, p.35,36,41]

- "invent predicates"

- "the function 'see' maps W into S;"

- "...the designer... never knows ..."

- "We stress that the objects guessed to exist ..."

- "... that our inventions mirror reality."

- "Choosing to use predicate calculus ..."

- [Kirsh, 1991, p.9, 10, 15]

- "... the notion of a concept is understudied in AI ..."

- "A concept ... is a modular component of knowledge."

- "... the real world is ... [not] ... decomposable into concept-sized bites ..."