| A | B |
| SGML | A metalanguage used to create other languages, including HTML and XHTML |
| Metalanguage | A language used for defining other languages |
| Document Type Definition | A set of rules contained in a simple text file that defines the structure, syntax and vocabulary as it relates to tags and attributes for a corresponding document. |
| Hyperlinks | Embedded instructions within a text file that link it to another point in the file or to a separate file. |
| Tags | Pieces of code, enclosed in angle brackets, that tell the HTML interpreter how to process or display text. |
| XML | A markup language that describes document content instead of adding structure of formatting to document content. |
| XML | A simplified version of SGML. |
| XSL | A style language that provides formatting instructions for XML documents. |
| Client | An individual computer connected to a network. Also, a system or application that requests a service from another computer, and is used to access files or documents. |
| Site Map | A brief, hierarchical representation of a Web site that enables visitors to quickly identify areas of the site and navigate to them. |
| Trouble Ticket | A record of a problem related to a service provided by an ISP or ASP. |
| Troll | A Web user who publishes comments or submits feedback simply to annoy or anger. |
| Non-Disclosure Agreement | A legally binding contract signed by both parties stating that they will not reveal any trade secrets or intellectual property owned by the other. |
| Legal Consultation | When signing NDAs and other documents is necessary, you should first retain legal counsel. |