Online services offer management

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.