%0 Conference Proceedings
%T A Middleware Layer for Flexible and Cost-Efficient Multi-tenant Applications
%+ Catholic University of Leuven = Katholieke Universiteit Leuven (KU Leuven)
%A Walraven, Stefan
%A Truyen, Eddy
%A Joosen, Wouter
%Z Part 7: Security and Interoperability
%< avec comité de lecture
%( Lecture Notes in Computer Science
%B 12th International Middleware Conference (MIDDLEWARE)
%C Lisbon, Portugal
%Y Fabio Kon
%Y Anne-Marie Kermarrec
%I Springer
%3 Middleware 2011
%V LNCS-7049
%P 370-389
%8 2011-12-12
%D 2011
%R 10.1007/978-3-642-25821-3_19
%K Multi-tenancy
%K Dependency injection
%K Software-as-a-Service
%K Google App Engine
%Z Computer Science [cs]
%Z Computer Science [cs]/Networking and Internet Architecture [cs.NI]Conference papers
%X Application-level multi-tenancy is an architectural design principle for Software-as-a-Service applications to enable the hosting of multiple customers (or tenants) by a single application instance. Despite the operational cost and maintenance benefits of application-level multi-tenancy, the current middleware component models for multi-tenant application design are inflexible with respect to providing different software variations to different customers.In this paper we show that this limitation can be solved by a multi-tenancy support layer that combines dependency injection with middleware support for tenant data isolation. Dependency injection enables injecting different software variations on a per tenant basis, while dedicated middleware support facilitates the separation of data and configuration metadata between tenants. We implemented a prototype on top of Google App Engine and we evaluated by means of a case study that the improved flexibility of our approach has little impact on operational costs and upfront application engineering costs.
%G English
%Z TC 6
%Z WG 6.1
%2 https://inria.hal.science/hal-01597768/document
%2 https://inria.hal.science/hal-01597768/file/978-3-642-25821-3_19_Chapter.pdf
%L hal-01597768
%U https://inria.hal.science/hal-01597768
%~ IFIP-LNCS
%~ IFIP
%~ IFIP-TC
%~ IFIP-WG
%~ IFIP-TC6
%~ IFIP-WG6-1
%~ IFIP-MIDDLEWARE
%~ IFIP-LNCS-7049