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Balasubramani DhanapalBalasubramani Dhanapal 

Future Annotaions

why we go for future annotations.what is the Relationship between field update and future annotations????
Best Answer chosen by Balasubramani Dhanapal
ShashankShashank (Salesforce Developers) 
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

All Answers

ShashankShashank (Salesforce Developers) 
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
This was selected as the best answer
Balasubramani DhanapalBalasubramani Dhanapal
Thanks  Shashank