Abstract: A change tracing system detects and records changes made to data items by processes in a computer system. Processes and changes are organized as change sessions in a change history database and tagged with user-provided reasons and other identification fields. A query module provides detailed access to change history and selection of specific changes and items in order to analyze effects of changes, diagnose problems caused by changes, compare changes and change history, rollback from changes to previous item contents or package sets of changes to be repeated. Linkage between data items is recorded in order to document the impact of changes affecting dependent data items. Alerts and copies of change sessions may be transmitted automatically to designated users. Communication between change tracing systems running on networked computers detects and records remotely caused changes on the system where the data item resides as well as the system originating the change.

Abstract: A system for providing scheduled messages to a remote user in a batch oriented system. In a preferred embodiment of the present invention, a user creates and/or reads electronic mail locally. While the user creates the electronic mail, a message is displayed to the user on a portion of the local monitor, the message preferably changing in accordance with a local display schedule and stored on a local storage device. The message is preferably targeted to the particular user. When the user is ready to transmit the e-mail created and/or receive e-mail addressed to him, the user's local client establishes a connection via a modem with a remote e-mail server system. The remote e-mail server system not only receives the e-mail transmitted by the user and/or transmits e-mail addressed to the user, but also updates the user's local messages in accordance with a distribution schedule.

Abstract: A system for providing scheduled messages to a remote user in a batch oriented system. In a preferred embodiment of the present invention, a user creates and/or reads electronic mail locally. While the user creates the electronic mail, a message is displayed to the user on a portion of the local monitor, the message preferably changing in accordance with a local display schedule and stored on a local storage device. The message is preferably targeted to the particular user. When the user is ready to transmit the e-mail created and/or receive e-mail addressed to him, the user's local client establishes a connection via a modem with a remote e-mail server system. The remote e-mail server system not only receives the e-mail transmitted by the user and/or transmits e-mail addressed to the user, but also updates the user's local messages in accordance with a distribution schedule.

Abstract: A system for providing scheduled messages to a remote user in a batch oriented system. In a preferred embodiment of the present invention, a user creates and/or reads electronic mail locally. While the user creates the electronic mail, a message is displayed to the user on a portion of the local monitor, the message preferably changing in accordance with a local display schedule and stored on a local storage device. The message is preferably targeted to the particular user. When the user is ready to transmit the e-mail created and/or receive e-mail addressed to him, the user's local client establishes a connection via a modem with a remote e-mail server system. The remote e-mail server system not only receives the e-mail transmitted by the user and/or transmits e-mail addressed to the user, but also updates the user's local messages in accordance with a distribution schedule.

Abstract: A system for providing scheduled messages to a remote user in a batch oriented system. In a preferred embodiment of the present invention, a user creates and/or reads electronic mail locally. While the user creates the electronic mail, a message is displayed to the user on a portion of the local monitor, the message preferably changing in accordance with a local display schedule and stored on a local storage device. The message is preferably targeted to the particular user. When the user is ready to transmit the e-mail created and/or receive e-mail addressed to him, the user's local client establishes a connection via a modem with a remote e-mail server system. The remote e-mail server system not only receives the e-mail transmitted by the user and/or transmits e-mail addressed to the user, but also updates the user's local messages in accordance with a distribution schedule.

Abstract: A system and method for authenticating that advertisements are properly displayed at a remote computer. The advertisements are received electronically and are stored in a memory device at the remote computer. The advertisements are output to users when the remote computer is off-line. Each advertisement is authenticated by the remote computer prior to output to ensure, for example, that the advertisement has not been tampered with, modified or replaced. Information as to when advertisements are output is recorded and used for billing the advertisers. This information can be stored in a statistics file on the remote computer. When the statistics file is transferred to a central computer, the statistics file is authenticated to ensure that it has not been tampered with, modified or replaced. The authentication scheme can be used as part of an electronic mail system.

Abstract: A system for providing scheduled messages to a remote user in a batch oriented system. In a preferred embodiment of the present invention, a user creates and/or reads electronic mail locally. While the user creates the electronic mail, a message is displayed to the user on a portion of the local monitor, the message preferably changing in accordance with a local display schedule and stored on a local storage device. The message is preferably targeted to the particular user. When the user is ready to transmit the e-mail created and/or receive e-mail addressed to him, the user's local client establishes a connection via a modem with a remote e-mail server system. The remote e-mail server system not only receives the e-mail transmitted by the user and/or transmits e-mail addressed to the user, but also updates the user's local messages in accordance with a distribution schedule.