There are three popular software interfaces used to drive a production scanner. They provide mostly the same functionality, but are not all available with all scanners supporting all scanner features. Once you have selected a scanner and appropriate options, you need to determine which production scanner software fully supports your needs. Then you need to select the capture software that will take advantage of the interface, adaptor and scanner.
Datacap software is compatible with all scanners driven by ISIS, Twain or Kofax Adrenaline, which includes all scanners made by Bowe Bell + Howell, Canon, Fujitsu, Kodak, IBML, Panasonic, and Ricoh.
ISIS - A proprietary scanner software interface from Pixel Translations.
Kofax - The same people who make the Kofax Adrenaline SCSI cards have a software interface called Image Controls. For most scanners, Kofax now runs "on top of" ISIS. In other words, the underlying feature set is delivered by ISIS.
TWAIN - A public domain interface growing in popularity. TWAIN is often included with scanners.
Note: Both Kofax and ISIS have the ability to run TWAIN on top of their interfaces. TWAIN often cannot take full advantage of more advanced features in a scanner.