Disable Field

You want to give permission to somebody to add or edit content? You want them not to add content in some paticular fields... Here is the module...Every field gets this option...

Workbench moderation

Content can be maintained by a team. Permissions can be set by role. You can give access to somebody to produce a draft version of new content, without producing it. It needs a review of a publisher. The Workbench module (not this one) gives a view display of all the changes that have been made.