A method for use in a messaging system having a database of stored messages, wherein the stored messages include or are associated with corresponding attributes, the desired format of which is subject to change over time, comprises the steps of determining whether a stored message is formatted in accordance...http://www.google.de/patents/US6148329?utm_source=gb-gplus-sharePatent US6148329 - Method and system for maintaining the format of messages in a messaging system database
