Naming packages

It's common for package names to use "reverse domain" naming convention. Examples of reverse domain names include com.adobe for adobe.com, and org.yourdomain for yourdomain.org.

Use the following guidelines when you name packages:

Put the prefix for a package name in all lowercase letters.
For example, com, mx, or org.
Put related classes (classes with related functionality) in the same package.
Begin package names with a consistent prefix.
For example, you might use com.adobe.projectName to maintain consistency. Another example would be com.adobe.docs.learnAS2.Users for the Learning ActionScript 2.0 Reference.
Use a clear and self-explanatory package name.
It's important to explain the package's responsibilities. For example, you might have a package named Pentagons, which is responsible for using the Flash drawing API to draw various kinds of pentagons in documentation examples; its name would be com.adobe.docs.as2.Pentagons.
Use mixed capitalization for compound or concatenated package names.
packageName is an example of a compound, concatenated package name. Remember to use all lowercase letters for the prefix (com, org, and so on).
Do not use underscores or dollar sign characters.

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