Exception Chart in MSD axapta

This is Exception Chart in Microsoft dynamics Axapta. Exception handling should start with try block and exception can be cache able  in catch section. Read below instruction to get more details.
Exception Chart

Exceptions are errors that may occur during the execution of a program. Keep in mind the following facts about exceptions:

When an error occurs, an exception is thrown.
When a system error occurs, an exception is thrown by the operating system.
You can write code to throw custom exceptions.
Handling an exception means dealing with the exception in an appropriate manner.
Exception handling should not be used for normal program flow control.
Exceptions are handled by enclosing your code in a try block and then using catch statements to handle exceptions that might be thrown.