SOA India 2009 | SOA and Web Business Platforms

SOA and the Web Business Platforms Harsh Jegadeesan, Ph.D.

Context
Evolution of the Web
Read-only Web to Read-write web
Emergence of Web Business Platforms

Platform Usage Scenario | Website Traditional Scenario

Platform Usage Scenario | Mashups + + -Informational - Lightweight

Platform Usage Scenario | Composites -Transactional - Heavyweight

Platform Usage Scenario | Integration Scenario 2: Auctioning Excess Inventory Scenario 1: Selling on eBay Scenario 3: Integrating Synergistic Applications ERP HCM Integration of cloud apps with on-premise apps

Platform Usage Scenario | Access Channels
Content Syndication
Productivity Environments

Emerging Business Models
Monetizing APIs
Revenue Share from Transactions (Paypal, eBay)
Sell advertisements
Affiliates & Partners
Revenue from traffic generation
Advertising
Subscriptions
For Platform Providers For Platform Users

Web Business Platforms | Stakeholders Developers Aggregators Marketplaces End-Users Web Business Platform Platform Providers Entrepreneurs

The Platform Strategy
Opening-up of the platform using web APIs (~WinAPIs)
Platform Adoption and creation of an ecosystem around the platform
Address needs of heterogeneous platform users
Support for different technology platforms

The Case for Platform Strategy
Expand footprint of platform
Drive traffic
Innovation / Feature Development
Support new Business Models
Content Acquisition (User-Generated Content)
Co-Branding

web API Requirements
Support for heterogenous technlogy platforms
Support for open-standards
Architecture homogenity and conceptual coherance
Must follow underlying domain semantics
Easy to learn
Web APIs = Webservices SOAP, XML, HTTP, PoX, WS-* SOA, REST

Engineering Challenges | Granularity
API Granularity
Fine-Granular APIs
Nouns. E.g. Orders, Customers
Used by Mashups
Coarse-Granular APIs
Verbs. E.g.ATP Check
Used for integration, by composites

Engineering Challenges | Technology Choices Source: The SOA with reach: Web-Oriented Architecture, Dion Hinchcliffe Technology choices must be made based on application requirements

Engineering Challenges | Evolving Standards
Challenge: Catering to heterogeneous platform users
SOAP vs. REST WS-* XML / JSON OASIS / W3C Evolving Standards Problem Model -Driven development (MDD) can help safeguard investments

Engineering Challenges | Consumption SDKs
Catering to heterogenous service consumers
Transport Protocols
Data Standards
Maintaining and Evolving language-specific Software Development Kits (SDKs)
Consumption SDKs can be created from conceptual models built using MDD

Concluding Remarks
Evolution of the web – Web Business Platforms
Strong business case to adopt platform strategy
Platforms opening-up through web APIs
web APIs = webservices
Engineering Challenges; can be addressed using MDA
Thanks! Any questions? Mail to: [email_address]

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SOA India 2009 | SOA and Web Business Platforms

by Harsh Jegadeesan on Oct 14, 2009

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