Abstract: Systems and methods of providing notifications are described herein. A user account for which a request to provide content is received is identified. Responsive to identifying the user account and the content requested, one or more notifications to be provided along with the requested content is identified. Each of the notifications has a corresponding notification type identifier that indicates a type of notification. A priority level for each of the notifications is determined responsive to a global prioritization policy and the corresponding notification type identifier. The priority level for each of the notifications can be determined by identifying the notification type identifier for each notification, identifying a priority level that matches the notification type identifier and assigning the notification the identified priority level.

Abstract: A system for reliable message delivery includes a storage unit configured to store a message, and a message stored in the storage unit, wherein the message is persisted in the storage unit. The system also includes a status information associated with the message, the status information capable of indicating a first status. The system further includes a module coupled to the storage unit. The module is operable to execute on a computer and transmit the message to a second computer. The module is also operable to receive an acknowledgement from the second computer, and, in response to receiving the acknowledgement, the module is operable to indicate a second status in the status information. A method for providing reliable message delivery includes providing a storage unit configured to store a message and a message stored in the storage unit, wherein the message is persisted in the storage unit.

Abstract: A method for a client system to exchange data with an application server running a decision optimization engine comprising generating a request document at the client system having request child elements, wherein at least one request child element comprises a command to the decision optimization engine, sending the request document to the application server, and receiving a response document from the application server generated by the decision optimization engine comprising response child elements.