An information entry sequence should be designed so that its organization reflects the user's view of the task, and should provide all control options that may be required.
Additional Information:
A logical unit to the user is not necessarily the same as a logical unit of the computer software that mediates the transaction sequence. It might be, for example, that a user should enter ten items of data in a single transaction, because those data all come from one particular paper form, even though the computer will use five of those items for one purpose and five items for another in its subsequent internal processing.