1. Separating activities
By Dave Sullivan

2. Consider the following questions:
Part 1: Describe W3C is and what it does with as much specificity as you can.
 Part 2: If this group does it job well (something that is doubtful), describe the sort of benefits or positive outcomes that are likely.
This illustrates why authoring and editing need to be separate …

3. Consider difficulty of creating a phone system from scratch
Finding recent articles about this topic may be hard …
What would good sources of information be?

4. Two ways to create a payroll program:
Code
Checks
Processing
Data
Code
Checks
Processing
Data

5. CSS – Cascading Style Sheets
One file contains descriptions of various formatting styles
Many other files contain web pages and reference the CSS file.
Here is a CSS Tutorial

6. XML vs. HTML
HTML: all formatting codes and content are merged in one common file. (See HTML vs. XML example)
XML:
Uses a DTD file to store standard definitions of tags used in an application (see Introduction to DTD)
(Likely) Uses CSS to store formatting instructions
Uses HTML file to store content to appear on screen with tags that reference the DTD.

7. Concluding thoughts
How we describe and exchange data affects how we think, interact, and move forward as a society ...