US Patent 7822761 Groupware system with improved contact data handling

A groupware computer system comprising a groupware server, a groupware client coupled to the server over a network, a contact information repository configured to store contact data of users in personal contact lists associated to individual users, a messaging system database configured to store statistical information about exchange of messages, a contact management module coupled to the contact information repository and configured to create, modify and retrieve contact data of users, a functional component for automatic determination of contact information (ADCI), and a groupware server computer, groupware client computer, a method, data processing program, computer program product, and computer data signal therefore.