A component model for internet-scale applications

Abstract

This paper describes a component model where the overall semantics of a component is included in the interface definition. Such a model is necessary for future computing where programs will run at Internet-scales and will employ a combination of web services, grid technologies, peer-to-peer sharing, autonomic capabilities, and open source implementations. The component model is based on packages and supports static and dynamic objects, interfaces, structures, and exceptions. The interface definitions provide a practical approach to defining functional semantics and include appropriate extensions to provide semantics for security, privacy, recovery, and costs. The component model has been implemented in a prototype framework and demonstrated in an Internet-scale example.