in relation to web development, what is a taxonomy?

Can people explain what taxonomy means in terms of a web site?

My current understanding it开发者_运维知识库 a classification of the contents in relationship to each other, but it seems like it must go beyond that simplistic definition. and yes, I have read the wikipedia entry for this.

a way to categorize your content. One content could exist in multiple taxonomy categories. For example, Ronald Reagon could exist in the following categories: Presidents, Actors. You could have a site with content about Ronald Reagan. You could have category filters. Taxonomy would allow you to show the Reagan content for each category without having to duplicate the content.

Taxonomy tends to refer to a main navigational hierarchy - Stack Overflow's taxonomy for example would be the "Questions", "Tags", "Users", "Badges", and "Unanswered" links at the top of the page.

Taxonomy can mean many things though but for a website it tends to refer to the navigational hierarchy and organization of the site.