Integration of QoS Enabled Distributed Object Computing Middleware for Develovping Next-Generation D.pdf
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Integration of QoS-enabled Distributed Object Computing Middleware for
Developing Next-generation Distributed Applications
Yamuna Krishnamurthy, Vishal Kachroo David A. Karr, Craig Rodrigues,
fyamuna,vishalg@ Joseph P. Loyall and Richard Schantz
Department of Computer Science fdkarr,crodrigu,jloyall,schantzg@
Washington University BBN Corporation
St. Louis, MO, USA Cambridge, MA, USA
Douglas C. Schmidt
schmidt@
Electrical Computer Engineering Department
University of California
Irvine, CA, USA
Abstract
This paper describes the integration of QoS-enabled dis-
tributed object computing (DOC) middleware for developing
next-generation distributed applications. QoS-enabled DOC
middleware, facilitates ease of development and deployment
of applications that can leverage the underlying networking
technology or end-system QoS architecture. This paper also
describes the development of a demonstration application uti-
lizing QoS-enabled middleware to control the dissemination of
Unmanned Air Vehicle (UAV) data throughout a ship.
Keywords: Distributed object computing, QoS-enabled
Middleware, QuO middleware, CORBA-based Multimedia
Streaming
1 Introduction
DOC middleware has evolved tremendously over the past few
years. Initially, it facilitated the seamless inter-operation of
various applications over a variety of heterogeneous environ-
ments. Its growing acceptance has opened its applicability to a
broader variety of applications, whose demands are far beyond
inter-operability. This is especially true for next-generation
applications such as e-commerce, autonomous process con-
trol, and global event notification systems.
These advanced applications require a wide range of quality
of service (QoS) support, where resources are managed both
prior to and during run-time. For example in mission critical
telecommunication systems and distributed electronic medical
imaging systems, a failure to meet certain deadlines can re-
sult in significant loss of property and even life. Theref
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