A Scalable Middleware Solution for Advanced Wide-Area Web Services

M.R. van Steen, A.S. Tanenbaum, I. Kuz, H.J. Sips

Research output: Contribution to JournalArticleAcademicpeer-review


To alleviate scalability problems in the Web, many researchers concentrate on how to incorporate advanced caching and replication techniques. Many solutions incorporate object-based techniques. In particular, Web resources are considered as distributed objects offering a well-defined interface. We argue that most proposals ignore two important aspects. First, there is little discussion on what kind of coherence should be provided. Proposing specific caching or replication solutions makes sense only if we know what coherence model they should implement. Second, most proposals treat all Web resources alike. Such a one-size-fits-all approach will never work in a wide-area system. We propose a solution in which Web resources are encapsulated in physically distributed shared objects. Each object should encapsulate not only state and operations, but also the policy by which its state is distributed, cached, replicated, migrated, etc. © 1999 The British Computer Society,.
Original languageEnglish
Pages (from-to)34-42
JournalDistributed Systems Engineering
Issue number1
Publication statusPublished - 1999
EventMiddleware '98: IFIP International Conference on Distributed Systems Platforms and Open Distributed Processing - The Lake District, United Kingdom
Duration: 1 Sept 19981 Sept 1998


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