Declarative alternative strong typing Support strong type and typeless variable Strong type –- compile time performance Typeless -- runtime
ECMA-262 Edition 4 You should regard coding as a last resort. Siebel Tools provides many ways to configure your Siebel application without coding, and these methods should be exhausted before you attempt to write your own code, for the following reasons: ■ Using Siebel Tools is easier than writing code. ■ More important, your code may not survive an upgrade. Customizations created directly in Siebel Tools are upgraded automatically when you upgrade your Siebel application, but code is not touched, and it may need to be reviewed following an upgrade. ■ Finally, declarative configuration through Siebel Tools results in better performance than implementing the same functionality through code.