Service-Oriented Modeling and Architecture

Overview

This seminar will utilize an interactive lecture and case study scenarios to illustrate the concepts of SOA systems, development of Service-Oriented applications, how SOMA design techniques are implemented and the integration of enterprise components. Additionally, we illustrate the differences techniques used vs. OOAD processes, SOA requirements gathering, identifying services and processes, development of process modeling using BPM and BPEL, depict the four stages of SOAD, depict the SOA patterns, depict integration of BPM and Use Cases, identify services, define service implementation, service design, locate Classes and relationships from Use Cases, integrating UML class notation, usage of interface and data mapping, illustrate BPEL modeling concepts (Partners, variables, scope, etc), integrate advanced BPEL concepts, use of integration patterns. This course utilizes intricate sets of various case studies to demonstrate the capabilities of design diagrams and various testing strategies.

All aspects of this class will illustrate the architecture and design of an efficient and effective SOA environment.

Prerequisites

Each student should have a basic understanding of application development either as a developer, project manager or end client.

Class Format

Lecture and Case Study

Audience

Application architects, application developers, project managers and other professionals that will be designing SOA applications.

Learning Objectives

After completing this course, the student should be able to:

Understand the SOA Architecture

Depict the role of Web services and corresponding client interaction

Define the four major stages of SOAD

Compare SOA to OOAD processes

Define SOA patterns

Depict SOA requirements gathering

Define process modeling using BPM and BPEL

Integrate Use Cases and BPM

Illustrate service implementations

Depict service design methodology

Develop classes and relationships from Use Cases

Integrate UML class notation

Depict interface and data mapping

Define BPEL modeling components

Demonstrate advanced BPEL and WS concepts (State, Human interaction, etc)

Use of integration patterns

Course Duration

5 Days

Course outline

Introduction to SOA

SOA business challenges
Service Oriented Architecture
o UDDI Registry
o Service Requestor
o Web Service
B2C vs B2B
Defining XML
Defining SOAP
o Architecture
o Messages
Web Services Descriptive Language (WSDL)
o Definition
o Usage
Application Server
Enterprise Service Bus
Process Server
Message Broker
Business process modeling

SOA Fundamentals

Illustrate SOA applications
Depict Web services role
Define SOA components
Depict modeling role
Discuss physical components
- Web Services
- Enterprise Service Bus
- Process Server
SOA Layers
- Operational
- Enterprise
- Services
- Choreography
- Presentation

SOAD Introduction

OOAD principles applied to SOAD
Applying OOAD Principles
- Abstraction
- Abstraction in SOAD
- Encapsulation
- Encapsulation in SOAD
- Modularity
- Modularity in SOAD
- Hierarchy
- Hierarchy in SOAD
Define SOAD principles
- Reusable Services reusable
- Contract Adherence
- Loose coupling
- Hiding external logic and data structure
- Service autonomy
- Stateless services
- Composability in a business process
- Discoverablility
- Dynamic binding
The SOAD Methodology Steps
- Stage 1 - Process Modeling
- Stage 2 – Service Identification
- Stage 3 – Service Design & Implementation
- Stage 4 - Process Implementation

SOMA Approach

Top-Down
Business driven
Goal-Service Modeling
Evolution of EAI

Stage 1-Business Modeling and Use Cases

Defining BPM
Benefits of BPM
Integrating SOA into BPM
- Notation specification
- Behavior modeling
- Process activity sequencing
Illustrating Use Cases
Discovering Actors
- Identity
- Issues
Uncover cases
- Scenario driven
- Actor/Responsibility
- Aggregation
- Decomposition
Prioritization
Templates
Refactoring
Use Case Relationships
- Uses
- Extends
- UML usage
Use Case and Business Processes

Stage 2-Service Identification

Identifying Services
Produce Service Specification
Functional Areas of The Business (Subsystems)
Define Services belonging to Functional areas
Functionalities of these Services
Documenting Service hierarchy
Role of WSDL files

Stage 3-Service Design and Implementation

Service Design basics
- XML schema
- WSDL
  - Ports
  - Port types
  - Bindings
  - Messages
  - Types
- SOAP
  - Header
  - Body
  - Attachments
Stage design goals
Service development
Top-down design
Finding classes from Use Cases
Finding relationships form Use Cases
Class Diagram
Class Notation in UML
Top Down Summary
Bottom Up Development
- Legacy system adapters
- Creating a service based on adapters
Data Mapping
Interface Mapping

Stage 4-Business Process Implementation

Business Process diagrams
Integration with business process management
Business process standards
BPEL concepts
- Partners
- Endpoints
- Activities
- Variables
- Data handling
- Correlation

SOMA Modeling

Consumer View
- Service Identification
- Categorization
- Exposure
- Choreography
- QoS
Provider View
- Component Identification
- Specification
- Realization
- Management
- Standards/Governance
SOMA Methodology
- Identification
  - Domain decomposition
  - Goal-service modeling
  - Existing system analysis
- Specification
  - Component flow
    - Data
    - Rules
    - Services
    - Variations
  - Information specification
  - Service Specification
    - Service flow
    - Message flow
- Realization
  - Service allocation to component
    - Mediators
    - Façade
    - Rule objects
    - Factories
  - Component layer

Advanced Process Modeling

Error Handling
Modeling Faults
Compensation
Transaction Management
Sub-process modeling’
Human interaction

Modeling Patterns

Defining eBusiness Integration Patterns
- Business
- Integration
- Application
- Runtime
Business patterns
- Self Service
- Collaboration
- Information aggregation
- Extended Enterprise
Integration Patterns
- Process
- Application