Describe the guidelines for structuring data entry fields

What will be an ideal response?

Entry—Never require data that are already online or that can be computed. Defaults—Always provide default values when appropriate. Units—Make clear the type of data units requested for entry. Replacement—Use character replacement when appropriate. Captioning—Always place a caption adjacent to fields. Format—Provide formatting examples when appropriate. Justify—Automatically justify data entries; numbers should be right justified and aligned on decimal points, and text should be left justified. Help—Provide context-sensitive help when appropriate.