Multi-Tenant SOA Middleware for Cloud Computing

Following are the slides for my talk on WSO2 carbon multi-tenancy architecture at Cloud 2010, two weeks back. The paper describes the WSO2 Statos multi-tenancy Architecture .

Multi-Tenant SOA Middleware for Cloud Computing

http://static.slidesharecdn.com/swf/ssplayer2.swf?doc=carbon-multi-tenenacy-100714045831-phpapp02&stripped_title=carbon-multitenenacy-4751542

The full paper can be found here. The citation of the paper is given below.
Afkham Azeez, Srinath Perera, Dimuthu Gamage, Ruwan Linton,  Prabath Siriwardana, Dimuthu Leelaratne, Sanjiva Weerawarana, Paul Fremantle, “Multi-Tenant SOA Middleware for Cloud Computing” 3rd International Conference on Cloud Computing, Florida, 2010.

Abstract
Enterprise IT infrastructure incurs many costs ranging from hardware costs and software  licenses/maintenance costs to the costs of monitoring, managing, and maintaining IT infrastructure. The recent advent of cloud computing offers some tangible prospects of reducing some of those costs; however, abstractions provided by cloud computing are often inadequate to provide major cost savings across the IT infrastructure life-cycle. Multi-tenancy, which allows a single application to emulate multiple application instances, has been proposed as a solution to this problem. By sharing one application across many tenants, multi-tenancy attempts to replace many small application instances with one or few large instances thus bringing down the overall cost of IT infrastructure. In this paper, we present an architecture for achieving multi-tenancy at the SOA level, which enables users to run their services and other SOA artifacts in a multi-tenant SOA framework as well as provides an environment to build multi-tenant applications. We discuss architecture, design decisions, and problems encountered, together with potential solutions when applicable. Primary contributions of this paper are motivating multitenancy, and the design and implementation of a multitenant SOA platform which allows users to run their current applications in a multi-tenant environment with minimal or no modifications.

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