Macromedia ColdFusion MX 7 Certified Developer Study Guide
| ColdFusion comes with built-in support for integration with databases, email systems, Internet protocols, and more. In addition, ColdFusion can be extended using Custom Tags, User-Defined Functions (UDFs), and ColdFusion Components.
Custom Tags, UDFs, and CFCs are used to encapsulate and reuse ColdFusion functionality. For most applications this is all the extensibility ever needed, but occasionally it may be necessary to interact with external systems, and so ColdFusion provides several ways to accomplish this:
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