Here is what you learned in this chapter in a classic bottom-up rather than top-down approach.
Topic maps consist mainly of topics and associations, as you saw when we created topic maps that associate the tomato topic with recipes and menus.
A topic map is an overlay on information resources, as you saw when we created an occurrence for the tomato topic.
A topic is a stand-in, proxy, or surrogate for a subject, as you saw when we discussed PSIs.
Topics have characteristics (names, occurrences, and roles played in associations), as you saw when we gave our topics base and variant names, created an occurrence, and gave our associated topics role specifications.
The author controls the meaning of a topic map through topic characteristics and ...