I am trying to design an interface to do two things:
- Create Items and Objects
- Create links between Items and Objects (in a many-to-many association)
An Item is a simple attribute that must be applied to at least one (and possibly all) Objects.
An Object is an auto-numbered container that contains at least one item. Objects are split up into auto-numbered sub-objects in a nested association.
I have designed a form similar to the mockup below to allow for creation of Items and Objects side-by-side:
This form works quite smoothly for the particular use-case of my application. Where I run into difficulties is in editing associations between Items and Objects.
My feeling is that it should be possible to edit the association while staying on this screen. I would imagine that it would run something like this:
- User clicks an Item.
- Text to the effect of "Add Item Name to Objects ->" appears under the item
- The other Items fade and clicking them is disabled
- The "Add Object" buttons are disabled
- Each Object link is replaced with a checkbox
- The user clicks a "done" button placed... maybe next to the edited Item
This would work vice-versa when clicking on an Object.
This seems like it would work nicely because it is taking advantage of the fact that all of the entities needed already exist on the screen. Also it is nice for the user to have an overview of all Items and Objects (particularly for my application's use-case).
However, I am worried that by adding an extra mode into an already complicated form it will confuse users.
Do you have any suggestions for preventing the mode-shift from becoming confusing?
Alternatively, can you think of strong arguments for extracting this mode out into a separate "edit association" screen or dialog for the selected Item/Object?