Compares three methods of data entry available to database producers--keyboarding, optical scanners, and electronic input--in terms of turnaround time, accuracy, and cost. It is concluded that, although the trend is toward electronic submission, all three methods will remain as viable options in the foreseeable future. (CLB)

Discussion of quality control in online and CD-ROM databases focuses on the problem of data elements that are omitted from records. Completeness testing is discussed; search strategies are described; and a case study of Bowker's Video Directory, part of the Children's Reference Plus database, is presented. (eight references) (LRW)