A precendence constraint has the evaluation operations:

• Constraint – Evaluates the success, failure, or completion of the predecessor task or tasks.
• Expression – Evaluates the success of a customized condition that is programmed using an expression.
• Expression and Constraint – Evaluates both the expression and the constraint before moving to the next task.
• Expression or Constraint – Determines if either the expression or the constraint has been successfully met before moving to the next task.

The precedence constraint arrows can have different colors  to represent different commands. Each color represents a status when a task executed.

• Green = On Success
• Red = On Failure
• Blue = On Completion
• Any color with FX Logo = Expression, or Expression with a Constraint

The SSIS Protection Level has:

• DontSaveSensitive
• EncryptSensitiveWithUserKey
• EncryptSensitiveWithPassword
• EncryptAllWithPassword
• EncryptAllWithUserKey
• ServerStorage