How Application Diagnostics Works

Application diagnostics evaluates applications as follows:

At design-time: Analyzes the application or specific artifacts in terms of all possible problems that could occur. To determine this worst possible situation, suppression options (such as those used with forms) are ignored. Application diagnostics provides information about how to fix the design flaws it encounters.
At runtime: Internal governors perform checks that may prevent users from performing particular actions if the design flaws found are not resolved.

Use application diagnostics to analyze the following: