S#	Audit Area	CheckList Item
1	Exception Handling	plan for unexpected execution paths and Catch exceptions
2	Definsive programming	Use validation for operation inputs  to prevent exceptions
3		Validate objects for Null, empty, Status, and readiness for usage before using it, Design By contract methodology
4		Validate data on both Client and server side, it called double check
5		Create Contract Checks for precondiitions using Code Contracts libranry
6		Create Contract Checks for postcondiitions  using Code Contracts libranry
7		Create Contract Checks for invariants  using Code Contracts libranry
8	Compiler	Make sure that there shouldn't be any project warnings.
9	Check Inputs	Check for negative and positive values according to your needs
10		Check for null objects before usage
11		Check for function inputs validity before execution, Like null values  and status
12	References	Check for connection status before usage for main components, like: • Component • DB • WS WEBAPI
13	UI Validation	Control Input values fom your UI, for example range values for integer, datetime, and updown controls
14		Control Input values fom your UI, for example 1. Mandatory fields that must have values 2. Add default values for most common attributes