Abstract: The reliable writing of data to multiple data stores using a write agent. The overall write operation is managed by a write manager that is communicatively coupled to the write agent and to a certain data store. Upon determined that multiple data stores are to be written to, the write manager first instructs the write agent to perform a delay write to other data store(s). The delay write means that the write agents waits a delay time before performing the write unless instructed in the meantime to more immediately perform the write, and if a delay passes, does not perform the write without first checking that the write has been made to the certain data store. After instructing the write agent to delay write, the write manager attempts to write to the certain data store. Upon successfully writing to the certain data store, the write manager may instruct the write agent to proceed immediately.

Abstract: The reliable writing of data to multiple data stores using a write agent. The overall write operation is managed by a write manager that is communicatively coupled to the write agent and to a certain data store. Upon determined that multiple data stores are to be written to, the write manager first instructs the write agent to perform a delay write to other data store(s). The delay write means that the write agents waits a delay time before performing the write unless instructed in the meantime to more immediately perform the write, and if a delay passes, does not perform the write without first checking that the write has been made to the certain data store. After instructing the write agent to delay write, the write manager attempts to write to the certain data store. Upon successfully writing to the certain data store, the write manager may instruct the write agent to proceed immediately.

Abstract: Online services offer modeling is provided. A system for managing online offers for products and services includes a components module, an offer module, a subscription module, a billing module and a change management module. The component module defines the properties of components that may be included in an offer. The offer module defines the features of the offer, including one or more components. The components may be a base component or an add-on component. The subscription module processes the provisioning of an offer. The market module specifies countries or regions in which offers are made available. The billing module processes billing and payment actions for an offer. The change management module processes alterations to a provisioned offer, inserting the properties of an add-on component into the properties of a base component.

Abstract: Online services offer modeling is provided. A system for managing online offers for products and services includes a components module, an offer module, a subscription module, a billing module and a change management module. The component module defines the properties of components that may be included in an offer. The offer module defines the features of the offer, including one or more components. The components may be a base component or an add-on component. The subscription module processes the provisioning of an offer. The market module specifies countries or regions in which offers are made available. The billing module processes billing and payment actions for an offer. The change management module processes alterations to a provisioned offer, inserting the properties of an add-on component into the properties of a base component.

Abstract: A data service that manages user and subscription data for multiple services. The data service maintains a database of the user and subscription data and provides an interface that allows the other services, that act as clients to the data service, to access that data. The data service avoids the need for the client services to implement a framework to manage the storage of user and subscription data. The data service also allows user profile data to be updated by one client service and used by all others. Further, data, such as usage history or information on policy violations, may be shared by multiple services.