From the post:
With the right indexes in place, MongoDB can use its hardware efficiently and serve your application’s queries quickly. In this article, based on chapter 7 of MongoDB in Action, author Kyle Banker talks about refining and administering indexes. You will learn how to create, build and backup MongoDB indexes.
Indexing is closely related to topic maps and the more you learn about them, the better topic maps you will be writing.
Take for example the treatment of “multiple keys” in this post.
What that means is that multiple entries in an index can point at the same document.
Not that big of a step to multiple ways to identify the the same subject.
Granting that in Kyle’s example, none of his “keys” really identify the subject. More isa, usedWith, usedIn type associations.
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