Jeff Estefan is a Principal Engineer and the Division Technologist for the Systems and Software Division at NASA’s Jet Propulsion Laboratory in Pasadena, California. Jeff manages the Division’s technology R&D portfolio and is active in the development and evolution of industry standards associated with systems and software engineering.

He has served in various engineering and leadership positions over the past 24 years both within JPL and outside JPL with organizations such as IBM and The Boeing Company.

Jeff is a voting member of the OASIS SOA Reference Model (SOA-RM) Technical Committee, OASIS SOA Reference Architecture (SOA-RA) Subcommittee, and OASIS Service Component Architecture/Assembly (SCA-Assembly) Technical Committee.

Presentation

The OASIS Perspective

SOA is an architectural paradigm that is driven by the need to enable multiple participants to interact with each other, offering and consuming services on the scale of the Internet itself. As such it promotes a world in which services can and will be used and reused in ways that perhaps the originators of services do not envisage. The OASIS Reference Model for SOA gives a concise characterization of SOA, and how it differs from other paradigms for distributed systems; one of the key distinguishing features of SOA is its ability to work across multiple ownership domains. The OASIS Reference Architecture for SOA takes the work of the Reference Model one stage further by providing an architectural description of how SOA-based systems may be realized. There are three main viewpoints and associated views in the Reference Architecture: how SOA-based systems might be used in an effective way; how SOA-based systems may be constructed; and the view corresponding to the issues raised in owning SOA-based systems.

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