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

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

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

Monetizing APIs

Revenue Share from Transactions (Paypal, eBay)

Sell advertisements

Affiliates & Partners

Revenue from traffic generation

Advertising

Subscriptions

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

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

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

Support for heterogenous technlogy platforms

Support for open-standards

Architecture homogenity and conceptual coherance

Must follow underlying domain semantics

Easy to learn

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

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

Challenge: Catering to heterogeneous platform users

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

Catering to heterogenous service consumers

Transport Protocols

Data Standards

Maintaining and Evolving language-specific Software Development Kits (SDKs)

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]

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