Modelling Theory and Practice/Modelling with Concepts

Start: single property R(x). Now: extend by further properties R(x), S(x), T(x).

Can be shown in a table like:

Problem: how to keep the overview? Solution: by introducing concepts.

What is a concept:
 * 1) Intuition
 * 2) Characteristics
 * 3) Definition
 * 4) Hasse diagram

Basic structures
 * 1) linear order
 * 2) taxonomy (tree)
 * 3) diamond

Formal concept analysis

Fundamental theorem of concept analysis: the set of concepts are a lattice.

More complex structures.