NDLI: Resolving feature convolution in middleware systems

Content Provider	ACM Digital Library
Author	Zhang, Charles Jacobsen, Hans-Arno
Abstract	Middleware provides simplicity and uniformity for the development of distributed applications. However, the modularity of the architecture of middleware is starting to disintegrate and to become complicated due to the interaction of too many orthogonal concerns imposed from a wide range of application requirements. This is not due to bad design but rather due to the limitations of the conventional architectural decomposition methodologies. We introduce the principles of horizontal decomposition (HD) which addresses this problem with a mixed-paradigm middleware architecture. HD provides guidance for the use of conventional decomposition methods to implement the core functionalities of middleware and the use of aspect orientation to address its orthogonal properties. Our evaluation of the horizontal decomposition principles focuses on refactoring major middleware functionalities into aspects in order to modularize and isolate them from the core architecture. New versions of the middleware platform can be created through combining the core and the flexible selection of middleware aspects such as IDL data types, the oneway invocation style, the dynamic messaging style, and additional character encoding schemes. As a result, the primary functionality of the middleware is supported with a much simpler architecture and enhanced performance. Moreover, customization and configuration of the middleware for a wide-range of requirements becomes possible.
Starting Page	188
Ending Page	205
Page Count	18
File Format	PDF
ISSN	03621340 15581160
DOI	10.1145/1035292.1028992
Journal	ACM SIGPLAN Notices (SIGP)
Volume Number	39
Issue Number	10
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1983-05-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aspect oriented middleware Middleware architecture
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Software

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