| 摘要 |
<p>A personal assistant system (1) which interacts with content and service providers (11, 12, 13) in order to contract to deliver services or content to a system user. Such interaction may be direct (43, 45) between the personal assistant system (1) and a content or service provider (e.g. 11) or indirect (44, 46, 47, 48) via a service broker (10), or virtual Chamber of Commerce, which is used as an intermediary by the personal assistant system (1) and service providers (11, 12, 13) for finding appropriate customers and providers of services.</p> |
