A system, method, data structures and computer-accessible medium is provided for storing, managing, and tracking the development of messages for computer program products. Message and message-related data for messages which computer program products display to users as part of the product's user interface are centralized in a message catalog. A message catalog schema describes the attributes of a message separately from the attributes of one or more conditions for which a message should be displayed. Interfaces are provided for creating, localizing, documenting, maintaining, displaying, and supporting messages and message-related data in a message catalog consistent with the message catalog schema. Notifications to owners of the messages and conditions is performed periodically or whenever a change has been detected.