Abstract: A method for distributing software is provided. The method includes distributing a message from an application server to one or more application layer routers, such as servers that are being used to route enterprise software distribution messages, using a modified publish and subscribe architecture that includes the route to all recipients in the message address and that uses existing network communications. The message can thus be distributed to one or more subscribers on a first channel. The message is then distributed to one or more subscribers using the modified publish and subscribe architecture on one or more second channels selected from a second channel layer if necessary. This process is repeated until the message reaches all subscribers listed as recipients in the message.

Abstract: A method for distributing software is provided. The method includes distributing a message from an application server to one or more application layer routers, such as servers that are being used to route enterprise software distribution messages, using a modified publish and subscribe architecture that includes the route to all recipients in the message address and that uses existing network communications. The message can thus be distributed to one or more subscribers on a first channel. The message is then distributed to one or more subscribers using the modified publish and subscribe architecture on one or more second channels selected from a second channel layer if necessary. This process is repeated until the message reaches all subscribers listed as recipients in the message.

Abstract: A data processing system and method stores a relational database in which audit records are stored without compromising the ability to detect data tampering. The technique provides for detection of unauthorized row modification, row deletion, and row insertion. Extra measures are incorporated to protect from administrator attacks. In addition, the technique enables integrity checking and audit log archiving without having to suspend or bring down the audit subsystem. These on-line capabilities are especially important in mission critical applications which must satisfy the requirement that the application be disabled if the audit subsystem is not functioning properly.