Difference between Alerts and Workflow

Alert	Workflow
Oracle Alert is a database event detection tool designed to detect database events.	Oracle workflow is designed to manage the execution complex of business processes that result from database events.
Oracle Alert does contain some workflow type features such as response processing, that allow a sequence of actions to be taken depending on a users response to a message. (Example : Approval sequence)	Oracle Workflows response processing capabilities are more advanced than Oracle Alert.