Future Annotation and Field updates are 2 different things.
Field updates are a type of action that can be performed by workflow rules. They can be immediate or based on a time you specify in a time trigger in the workflow rule. https://help.salesforce.com/apex/HTViewHelpDoc?id=workflow_defining_field_updates.htm
Future annotation is a way to specify an apex method to be executed asynchronously, which means not immediately, but when the server has time and resources available for it. http://www.salesforce.com/us/developer/docs/dbcom_apex250/Content/apex_classes_annotation_future.htm
Future Annotation and Field updates are 2 different things.
Field updates are a type of action that can be performed by workflow rules. They can be immediate or based on a time you specify in a time trigger in the workflow rule. https://help.salesforce.com/apex/HTViewHelpDoc?id=workflow_defining_field_updates.htm
Future annotation is a way to specify an apex method to be executed asynchronously, which means not immediately, but when the server has time and resources available for it. http://www.salesforce.com/us/developer/docs/dbcom_apex250/Content/apex_classes_annotation_future.htm
Field updates are a type of action that can be performed by workflow rules. They can be immediate or based on a time you specify in a time trigger in the workflow rule. https://help.salesforce.com/apex/HTViewHelpDoc?id=workflow_defining_field_updates.htm
Future annotation is a way to specify an apex method to be executed asynchronously, which means not immediately, but when the server has time and resources available for it. http://www.salesforce.com/us/developer/docs/dbcom_apex250/Content/apex_classes_annotation_future.htm
All Answers
Field updates are a type of action that can be performed by workflow rules. They can be immediate or based on a time you specify in a time trigger in the workflow rule. https://help.salesforce.com/apex/HTViewHelpDoc?id=workflow_defining_field_updates.htm
Future annotation is a way to specify an apex method to be executed asynchronously, which means not immediately, but when the server has time and resources available for it. http://www.salesforce.com/us/developer/docs/dbcom_apex250/Content/apex_classes_annotation_future.htm