2. Agenda
• SOA Reference Architecture Overview
– SOA Stack – Consumer
– SOA Stack – BPM
– SOA Stack – ESB/Integration
– SOA Stack – Service
– SOA Stack – Service Component
– SOA Stack – Operational
– SOA Stack – Information Management
– SOA Stack – Governance
– SOA Stack – QoS
4. SOA Stack – Consumer Layer
• Consumer (Internal
and external users)
Interfaces
– Web UI, Mobile, Thin
Client, B2B
– Can invoke a business
process in BPM layer
– Can access Web
services, RESTful API
(for mobile) from ESB
or Service Layer
– Can maintain the state
of the session.
5. SOA Stack – BPM Layer
• Business Process
Management (BPM)
• Process flow that includes
orchestration of human task
and coarse grained business
services from ESB or the
service layer
• Long Lasting
• Can be used to measure the
key performance indicators
(KPI)
6. SOA Stack – ESB Layer
• Enterprise Service
Bus/Integration
– Orchestration of fine
grained business services to
expose a coarse grained
service
– Uses canonical message
format for orchestrated
business services
– Integration to
heterogeneous system
using adapters to expose
the service
– Handles the content based
routing and message
transformation during
orchestration
7. SOA Stack – Service Layer
• Service Layer
– Services exposed as web
service or RESTful service
(mobile clients)
– Business, Infrastructure, and
Partner Services
– Leverages adapters(from ESB)
for legacy and heterogeneous
system integration
– Services should be
• Standardized Contracts
• Interoperable
• Stateless
• Loose Coupled
• Abstracted
• Reusable
• Discoverable
• Autonomous
• Composable
8. SOA Stack – Service Layer
• Service Layer
– Has SLA and
maintains the non
functional
requirements (NFR)
– Independent of
platform,
operational systems
and
implementation
– Can be versioned
and dynamically
9. SOA Stack – Service Component Layer
• Service Component
Layer
– Can be
transactional(EJB)
and
structural(ORM,DAO)
– Can talk to multiple
operational systems.
– Can participate in
distributed
transactions.
– Can leverage system
specific message
formats.
10. SOA Stack – Operational Layer
• Operational Layer
– Can be packaged
application or existing
monolithic custom
application
– Legacy Systems
(Mainframe)
– Can be vendor
applications (SAP,
PeopleSoft etc.)
– Can be relational DB or
transaction processing
systems (TPS)
11. SOA Stack – Quality Of Service (QoS)
• QoS
– Business Activity
Monitoring (BAM) at
BPM layer.
– Instrumentation at
ESB and service layer
– Non Functional
Requirements (NFR)
and Service Level
Agreements (SLA) at
ESB and Service
layers
12. SOA Stack – Governance
• Governance
– Operational life cycle
management of the
services
– Enforces QoS
– Guidance for making
policies and decisions
– Managing all aspects
of an SOA solution,
including capacity,
performance, security,
and monitoring
13. SOA Stack – Information Management
• Information
Management
– Big Data
– Master data
management (MDM)
– Business
Analytics/Business
Intelligence
• Data Mining
• Dimensions and Fact
Tables
