Theory

Theory: an attempt to explain things through perception.
Theories of planning:internal to the field
Theories in planning: borrowed
Discriptive/Emperical theory: observable research, trends/causailty.
Deduction: Uses deductive reasoning/descriptive theory
Big Man Theory: the deducer is testing the theory on people rather than looking at the world
Inductive reasoning:
Descriptive theory: central place theory, based on observation, stylestic theory, Jane Jacobs was an inductive theorist
Normative theory:based on a certain set of values; on how on THINKS things should be, no claim on objectivity, morally guided.
Prescriptive theory: theory of action, problem solving, suggestive (gov. action, procedural design theory, mass production).
Critical theory: theory being applied, framework for evaluation.

Cautions: Rarely objective, various funtions