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Have a look at the context:

Contents
   |
   |--- 1. Fundamentals
   |          | 
   |          |--- 1. Browsers
   |          | 
   |          |--- 2. Servers
   |          | 
   |          |--- 3. Security
   |
   |--- 2. Introduction
   |          | 
   |          |--- 1. Lists
   |          | 
   |          |--- 2. Tables
   |          |          |
   |          |          |--- 1. Rows
   |          |          |
   |          |          |--- 2. Columns
   |          | 
   |          |--- 3. Forms
   |          | 
   |          |--- 4. Frames
   |
   |--- 3. Basics
   |          | 
   |          |--- 1. Arrays
   |          | 
   |          |--- 2. Functions

If I want to locate Rows, I can always say "Chapter 2: Part 2: Section 1". But,

  1. what is a common noun for "Chapter 2: Part 2: Section 1", "Chapter 1: Part 2", etc.

  2. if I want to use a small convention here and call (2,2,1) as a coordinate of Rows and similarly (2,2) as a coordinate of Tables, will the word 'coordinate' be appropriate here? If not what is the better word here?

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2 Answers 2

What you have presented is an hierarchical tree and each named location is a node on that tree connected by edges.

Your description of the terminal node rows is made up by listing each node on the path ** along those edges from the **root Contents.

If you reduce that description to a string of digits by omitting their descriptive labels, then it could still be called a path.

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2.2 and 2.2.1, togther with wordy forms such as "Chapter 2: Part 2: Section 1" are references.

In fact, that's all "co-ordinates" are: references to a particular point.

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Or to be more specific, co-ordinate would normally be used to imply a position on a system having multiple axes, so would not really be appropriate for this structure. –  DavidR Dec 18 '12 at 10:48

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