This publication contains worker task lists and supplementary information for five occupations in the business cluster: (1) microcomputer network technology; (2) customer service representative; (3) computer network administrator; (4) computer information systems; and (5) business manager. The task lists were generated through the DACUM (Developing a Curriculum) process and/or by analysis by a panel of experts. The following supplementary information is included for each occupation: (1) microcomputer network technology--attitudes, knowledge, basic skills/techniques; (2) customer service--attitudes, knowledge, certification/professional associations, recommendations for students, general and technical skills, equipment/software, trends, competencies, career opportunities; (3) network administrator--attitudes, knowledge, certification/professional associations, general and technical skills, equipment/software/literature, trends, competencies; (4) information systems--traits and attitudes, trends, what workers need to know, recommendations for students, skills; and (5) business manager--attitudes, knowledge, certification/professional associations, general and technical skills, equipment/software, trends, core competencies, career ladder. (KC)