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What is middleware made of?: exploring abstractions, concepts, and class names in modern middleware

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Abstract

Developing appropriate abstractions for distributed programming is one of the core aims of middleware research. Yet, analysing the impact, diffusion, and success of these abstractions in concrete middleware code is difficult and time consuming. In this paper we propose to use the constituting words found in program identifiers to explore the concepts used in popular middleware platforms. We study and compare four industrial middleware products (JBoss, Hadoop, Axi2, and ActiveMQ), and show the existence of a substantial core of shared concepts that we think capture some of the key tenets of modern middleware engineering.