The 14 City Technology Colleges (CTCs) opened so far in Great Britain are achieving an average attendance rate of between 90 percent and 97 percent. This high level of attendance has been assisted by the use of electronic registration (role taking) devices, including smart cards, portable computers, and optical readers. This report compares electronic registration systems available as a useful guide to schools considering adopting one of the systems. In addition to reducing truancy by monitoring general attendance and attendance at specific classes, electronic registration can save teacher time and make it easier to report student absences. The main methods of data collection are the traditional paper register (notebook), the Optical Mark Reader (preprinted forms and optical conversion into computer data), the swipe card (magnetic or bar codes), and the portable computer. Information about the use of these methods was collected through a survey of the CTCs and their affiliated schools (23 institutions). From these responses, some principles are derived for selecting a registration system. These include knowing what is needed, seeing the system in operation and checking the satisfaction of other users, planning carefully for implementation, and introducing the system carefully. Appendixes list suppliers and systems, give some example documentation, and discuss the legal requirements for attendance. (SLD)