Join the Lean Wave
Asanka Abeysinghe
Director, Solutions Architecture. WSO2, Inc.
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Asanka Abeysinghe
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10 + years industry experience working on projects ranging from desktop,
web applications through to high scalable distributed systems and serviceoriented architectures.
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Areas of specialization include application architecture and development
using Java technologies, C/C++ on Linux and Windows platforms.
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Committer of Apache Software Foundation.

Solutions Architect for number of SOA based middleware solutions,
implemented for different business domains.
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Demo
 Lean . Enterprise . Middleware
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Enterprise Architecture Challenges
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Legacy Modernization and Integration
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End-to-End Flows, Straight-Thru, Business Processes, Portals
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Performance, Scalability and Reliability
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Skills
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Governance
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Identity Management
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WSO2 Platforms
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The WSO2 SOA Platform
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A Complete Compositional Application Platform
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WSO2 Carbon : Architects View
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WSO2 Carbon : Component Architecture
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WSO2 Carbon : Shared Runtime
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Taking lean open source into THE Cloud
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WSO2 Carbon and Stratos
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Cloud Native Middleware
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On-Premise to Private Cloud to Public Cloud
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Expose MasterData as an API
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Tunnel to cloud using Cloud Services Gateway
(CSG)
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Cloud programming-model
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Multi-tenant
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Super-tenant
Isolated business services and business data
Federated Architecture for eGovernment
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Federated Deployment
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On-line, off-line modes
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Multi-tenanted data store
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Multi-tenanted identity management
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Business process automation with digital
documents
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Portals
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Organization
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Citizen
Unified Mobile-API
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JSON, XML/HTTP for service consumers
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Protocol switching
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DataServices
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QoS
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Security
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Monitoring
Governance
Architecture deep-dive
 WSO2 Platforms and Data
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WSO2 Platforms and Data
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WSO2 Carbon
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We didn’t really have to think about it much initially
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Users have their ways to manage data
However, users do want and need a polyglot data architecture
WSO2 Stratos
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In a multi-tenant environment, how to safely and scalably store and retrieve data is not something that can
be left to the user!
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Some data may not be in the PaaS – still in the enterprise
 StratosLive
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This is our living problem!
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User experience of Stratos
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Multi-Tenant Data Needs
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If super tenant is writing a multi-tenant app
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Super tenant responsible for proper isolation / security
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Can use any storage technology
If other tenant
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Needs private storage in a secure, scalable manner
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Scale can mean for lots of tenants or lots of load by a given tenant
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Achieving Tenant Isolation
 Each Tenant is given a Security Domain
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Each domain may have its own User Store and Permissions, thus have a set of users and permissions
enabling users to access resources
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Each domain is isolated and do not have access to other domains
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Accessing Enterprise Data from PaaS
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Many cloud apps will still need to “call home”
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Private enterprise data may need to remain onpremise
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Better approach is to have controlled exposure of
enterprise data
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E.g. EU privacy laws
Use Data Services
WSO2 Cloud Services Gateway safely connects
private data services into the cloud
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Summary
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WSO2’s middleware products are in fact built as one
product sharing a single codebase

Data needs vary depending on usage model (single vs.
multi-tenant) and deployment environment (on-premise,
private-cloud vs. public-cloud)
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No single answer will satisfy all needs
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Contacts
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Company : http://wso2.com
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Developer Portal : http://wso2.org
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Mail :
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Personal : [email protected] , [email protected]
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More info : [email protected]
Blog
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Personal : http://asanka.abeysinghe.org
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Corporate : http://wso2.com/blogs/architecture/
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Q&A
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