At most one revision per object will have this status. An [in development] revision exists if a user has locked an object either for editing, for model creation or if a DID has just been loaded. The [in development] revision is the 'private' working copy of the user who has locked the object. It is created the first time that the object is saved. The working copy is private in the sense that no other user can edit it. It is public in the sense that others can view (or run) it. In general, viewing (or running) a working copy of another developer does not make much sense, except perhaps when he wants a second opinion on what he has done up to his latest save (or create).