computer programming services for others, that consist of the following, namely, centralized address management, decentralized order management, links to branch offices via isdn, account management, placing of advertisements, an integrated what you see is what you get editor, management of box numbers/offers, price management and online price determination, marketing and competitor observation, information about sales, marketing, orders, consultants and partners, interactive customizing, a standardized input facility, user-related standard values, an exact daily booking of turnover, comfortable interfaces, management of supplements and production, a geographic information system down to building level, personnel planning on tour level, subscriber management, a history of changes, management of complaints