Description

Adding the 'Value Field' condition to a workflow transition means that a user cannot see that transition unless a certain field is set to a specified value. The validation for the condition is able to compare strings, numbers or option id's. For select fields, you may compare either by string or option id, the latter may be better, as the label of an option may change over time, the id however does not.
If a field can have several values (like components), it is enough, if one of the values matches the condition.

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You must specify the field and value that will be the prerequisite for the condition. For example: Image Removed

Image Added

If you choose the comparison type String, only '=' and '!=' are valid options. 
You may leave value empty and choose comparison type '!=', to tell that a given field is required for the condition. 
For date fields without time, use the format 'yyyy-MM-dd' for values, and for those with time 'yyyy-MM-dd HH:mm'. 
Example February 12th 2014: 2014-02-12, at 8:05 AM: 2014-02-12 08:05, at 4 PM: 2014-02-12 16:00.

For information on how to configure a condition for a workflow transition in JIRA, see the JIRA documentation.

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