42 consultation in the field of information technology; network design for others, namely, designing and implementing computer local-area networks; computer consultation in the field of database analysis in development for others; computer consultation in the field of legacy system migration for others, namely, updating of computer software; computer consultation in the field of customized client/server applications, on-line training, local and global computer networks and on-line transaction processing; customized computer software design for others; and computer systems integration