Service Oriented Architecture. SOA Foundation

Transcription

1 Service Oriented Architecture. SOA Foundation JIS 600 Duración: 24 horas Introducción Service oriented Architecture (SOA) shows demonstrable signs of simplifying software integration. It can reduce the cost of integration significantly. The approach is not new but may be a paradigm shift for many organizations. This is analogous to e-business, which is essentially client-server computing, but ushered many new possibilities. This no-nonsense course is designed for the IT managers. The goal is to explain in clearly understandable terms what SOA is and how it can aid application integration. The course proceeds to cover typical development lifecycle and various roles people play in the process. The course will help the managers build a vision for future development activities. Objetivos After completing this course, the student should be able to: What is SOA? How can SOA help a business? Enterprise Service Bus (ESB) Leading SOA vendors and their offerings. The SOA development methodology (SOAD). How to integrate legacy applications using SOA? Best practices. SOA Governance Model. Requisitos previos None. Documentación A copy of the official documentation.

2 Contenidos 1. SOA CONCEPTS Anatomy of an Enterprise IT Nightmare Understanding by Analogy Service Oriented Architecture Componentization and Reuse Benefits of Service Orientation Defining SOA Aligning the Enterprise What s a Service? Service Actors Service Layering Is SOA a Flash in the Pan? Service Orienting the Enterprise Service Oriented Thinking 2. LAYERS OF SERVICES 3. SOA VALUE PROPOSITION What Is Layering? SOA Layers Layering Illustration Data Storage Layer Application Logic Layer Adapter Layer Application Service Layer Business Service Layer Orchestration Layer Aux: Data Service Layer Aux: Security Service Layer Layering Concepts Layering Rules of Thumb In Review The Value of SOA Reducing Integration Expense Integration Costs Illustration Ripple effect of changes The Value of SOA Layering SOA Reduces Integration Costs

3 Increasing Asset Reuse SOA Economics/ROI Asset Reuse Illustration Service Reuse v. Object Reuse Increasing Business Agility Business Agility Illustration Traditional EAI Approach Problems with Traditional EAI Approach Change Flow Using Legacy Approach SOA Agility Build the Services Build the Process We Can Easily Change the Process Reducing Business Risk Risk reduction illustration SOA Eases Compliance Risk Business Advantages ROI Quantification Hurdles Real World SOA Example 1 Real World SOA Example 2 Real World SOA Example 3 Real World SOA Example 4 4. CALCULATING SOA ROI Does your SOA have an ROI? How fuzzy is your ROI? ROI Timeframes Short-term Tactical ROI Medium-term Operational ROI Long-term Strategic ROI Calculating Tactical ROI Calculating Operational ROI Iterative reuse model Calculated reuse model Calculated reuse definitions Calculated reuse example Calculating Strategic ROI IBM s Business Value Model 1. Select Expected Benefits 2. Identify an applicable cost scenario 3. Calculate initial, simple return 4. Select the cost scenario for subsequent implementations 5. Calculate returns for subsequent implementations Comparing the models Best Practices for SOA ROI Calculation

4 5. SOA SERVICE LIFE CYCLE 6. HOW A REQUIREMENT BECOMES A SERVICE 7. SERVICE MODELS 8. A TALE OF TWO COMPANIES SOA Adoption Adoption Stages Managing Services SOA Service Life Cycle Overview SOA s Circle of Life Discovery Phase Analysis & Design Phase Implementation Phase Deployment Phase Monitor Phase Retirement Phase How a Requirement Becomes a Service Requirements Discovery Analysis and Design Development New requirements Discovery Analysis & Design Service Development 1/4 Service Development 2/4 Service Development 3/4 Service Development 4/4 Service Orientation Artifacts The Service Model Developing a Service Model Service Model Example #1 Service Model Example #2 Service Model Example #3 Service Model Granularity Service Contract Template Service Contract Template Part 2 Service Contract Template Part 3 Governance Touch Points

5 Life Without Governance Example 1/3: Action: Providing a Service Reaction: Load Problem! Action 2/3: Consuming a Service Reaction: Dependency Problem! Action 3/3: Support Agreements Reaction: Support Problem! Fighting Fires Life in Company B Life in Company B SOA Governance Overview Governance Provides Order 9. SOA CHALLENGES AND RISKS 10. GOVERNANCE FUNDAMENTALS SOA Challenges and Risks Emerging Standards Emerging Standards (contd) Selecting Tools and Infrastructure Service Selection and Creation Service Management Portfolio Management Paradigm Shifting Communication Policies and Compliance Project Management Training and Re-skilling Governance and Risk Mitigation The Strategic Role of IT Governing IT IT Infrastructure Library (ITIL) ITIL: Managing IT Activities ICT Infrastructure Management (ICTIM) ICTIM Processes Control for Information and related Technology (COBIT) Need for SOA Governance SOA Governance SOA Governance Adoption Key Governance Relationships SOA Governance Elements SOA Governance Procedures Recommended Procedures

6 More Recommended Procedure SOA Governance Policies Enterprise Policies Business Policies Service Policies SOA Governance Metrics More SOA Governance Metrics Some Best Practices Relevant Standards Work OASIS SOA-RM Reference Model in Context OASIS SOA-RA 11. SOA MATURITY 12. ORGANIZATIONAL STRATEGIES Challenges to SOA Adoption Standards: Core Standards: Messaging Standards: Security Standards: Business Processes Standards: Misc Gauging SOA Maturity CMMI and SOA Maturity SOA Maturity Models SOA Maturity Model (CBDI) CBDI s Service Model SOA Maturity Model (IBM) IBM s Integration Model SOA Maturity Model (Wipro) Wipro s Model SOA Maturity Model (Sonic) Progress-Sonic s Model Comparing SOA Maturity Models SOA Adoption Roadmaps CBDI s Roadmap ZapThink s Roadmap Model Developing a Model and Roadmap Centers of Excellence and Competency SOA Champions Pattern: Collaborative Enterprise Pattern: Process-driven Business SOA Project Roles SOA Project Roles Changes SOA Project Roles New

7 Powered by TCPDF ( APPENDIX A. SOA INFRASTRUCTURE AND TOOLS APPENDIX B. IT GOVERNANCE USING ITIL SOA Infrastructure and Tools Network Appliances Enterprise Service Bus Service Container Business Rules Engine Business Activity Monitoring Service & Policy Management Business Process Engine Service Registry Service Repository Development Tools Tool Combinations What is the minimum? Chapter Design Introduction to Governance Example of Governance Use of IT in Organizations Need for IT Governance Return on IT Investments Areas Addressed by IT Governance IT Infrastructure Library (ITIL) ITIL Managing IT Services ITIL Service Delivery ITIL Service Support ITIL Process Documentation Release Management