Mastering Enterprise Solution Modeling : A Guide to Agile Enterprise Solution Architecture (A-ESA)

Embark on a journey through the Agile-Enterprise Solution Architecture (A-ESA) framework with this in-depth guide designed to provide a structured approach to IT solution modeling. The modeling approach is based on the principles of simplicity, significance, and systematics. It effectively addresses architectural debt issues in today's agile and large-scale IT solutions. Beginning with a foundational overview of A-ESA model specifications, the book introduces readers to the intent and unique methodologies behind A-ESA. It then delves into practical demonstrations through example solution cases, offering real-world context and insights into various architectural styles. Each chapter builds on this knowledge, covering the governing ideas of the thinking framework and essential topics such as key metrics, and modeling considerations for diverse architectural styles, ensuring a thorough understanding of A-ESA's application in different contexts. The book also emphasizes the link between enterprise architecture (EA) and solution architecture (SA), and the importance of governance and measurement in maintaining the integrity and effectiveness of architectural solutions. Readers will explore critical metrics, governance techniques, and the impact of agile modeling on purpose and architectural leading practices. With practical examples, measurement techniques, and governance strategies, this guide equips readers with the cognitive and practical tools necessary for strategic and effective architectural thinking. Concluding with reflections and future outlooks, this comprehensive guide offers valuable insights for mastering IT solution modeling within the A-ESA framework. You Will Gain hands-on experience with the Agile-Enterprise Solution Architecture (A-ESA) framework through detailed examples and solution cases that illustrate various architectural styles and modeling techniques. Understand the critical metrics and model mappings necessary for evaluating architectural quality and performance. Develop a deep understanding of the A-ESA architectural thinking, including strategic, enterprise, business, data, and cloud architecture considerations This book is for: IT architects, enterprise architects, and solutions architects. Table of Contents About the Author About the Technical Reviewer Acknowledgments Introduction Part I: A-ESA Specification and Demo Chapter 1: A Brief Overview of A-ESA The Intent of A-ESA The A-ESA Model Specification Architecture Area Architecture View Architecture Element Architecture Property A-ESA Lean Model Mode Summary Chapter 2: A-ESA Modeling by Example A-ESA Profile 1: Strategic Architecture ESA Principles Guiding Principles Solution Principles Capability Views A-ESA Profile 2: Lean Business Architecture Pattern Views Use Case Model Views Business Process Views Process View Mapping with Value Stream Architecture Outline View: Service Layering High-level Functional Service Views Functional Service Interface Views A-ESA Profile 3: Reference Architecture Application Business-centric Reference Architecture Data-centric Reference Architecture Technology-centric Reference Architecture Context-based Reference Architecture Baseline Reference Architecture A-ESA Profile 4: Enterprise Integration Architecture Capability Views Case Scenario Views Outline Views Metrics Views Pattern Views Functional Service Views Deployment Views A-ESA Profile 5: Application Architecture Case Scenario Views Architecture Outline Views Metrics Views Pattern Views Functional Views Generic Domain Context and Service Specification Component Domain Service Structuring Data Domain Service Determination Component Service Realization Validation Views A-ESA Profile 6: Microservice Architecture (MSA) Microservice Design Views Initial Case Scenario View DDD Pattern View Functional Service and Component Service Realization View Metrics Views Data Collaboration Views Supervisor Pattern View Initial Data Service View Operational Environment Views A-ESA Profile 7: Cloud Hosted Architecture (FaaS) Capability Views Case Scenario View Metrics View Enterprise DevOps View Functional Collaboration View Operational Infrastructure View A-ESA Profile 8: Big Data Technical Architecture Capability Views Case Scenario Views Solution Architecture Overview Architecture Block View Architecture Layer View Architecture Platform View Operational View Model Thinking Questions Questions on Profile 1: Strategic Architecture Questions on Profile 2: Lean Business Architecture Questions on Profile 3: Reference Architecture Questions on Profile 4: Integration Architecture Questions on Profile 5: Application Architecture Questions on Profile 6: Microservice Architecture Questions on Profile 7: Cloud Architecture Questions on Profile 8: Big Data Technical Architecture Summary Part II: A-ESA Governing Ideas Chapter 3: The A-ESA Thinking Framework The Distinct Nature of A-ESA Thinking The A-ESA Architectural Process Pillars of the A-ESA Thinking Framework Abstraction for Landscape View Architecture System Aspect-orientation for Structural Architecture Metrics Mapping for Decisional Architecture A-ESA Modeling Effects Architectural Clarity Unambiguous Terms Enhanced Architectural Communication Architectural Responsibility Architectural Quality Purposeful Architectural Measurement Cost Impact Enhanced Architectural Conformance Summary Part III: A-ESA Essentials Chapter 4: A-ESA Measurement Enterprise Input Metrics Enterprise Principle Guidance Enterprise Governance Guidance Key Architectural Quality Metrics Architectural Structuring Quality Architectural Connectivity Functional Quality Metrics Business Functional Quality Application Service Usability Application Service Adaptability Application Service Maintainability Operational Quality Metrics User-aware Operational Quality Non-runtime Operational Quality DevOps Metrics SRE Practice Solution Constraint and Opposing Force Solution Constraint Metrics Cost as a First-Class Metric Opposing Force Metrics Lean Measurement Cluster S-MAPS Measurement Cluster S-MAPS NFRs Checklist S-MAPS NFRs by Team Responsibility Summary Chapter 5: A-ESA Modeling Styles Style 1: Strategic Architecture Style 2: Enterprise Architecture Style 3: Heat-Mapping Capability Architecture Enterprise Capability Mapping with Value Stream Style 4: Business Architecture Relationship Between Business Model and Business Architecture Organization Communication Structure Business Objectives Business Scenario Style 5: Information Architecture Style 6: Application Architecture Functional Architecture DevOps Environment Style 7: Data Architecture Data Transaction Considerations AI Considerations in Data Architecture Style 8: Technical Architecture Operational Architecture Technical Platform Architecture Distributed Transactional Architecture Cell-based Architecture Physical Architecture Style 9: Service-oriented Architecture (SOA) Style 10: Microservice Architecture (MSA) Microservice Architecture Principle Microservice Architectural Process Microservices Architecture Design Microservice DevOps Microservice Pattern Microservice Operational Architecture Style 11: EDM Architecture Style 12: Large-scale Website Architecture Style 13: Agile and Digital Architecture Agile Architecture Digital Architecture Agile and Digital Architecture Style 14: Cloud Architecture Cloud Hosting Architecture Cloud Architecture Migration Cloud Service Selection Style 15: Security Architecture Style 16: Reference Architecture AI Reference Architecture and Pattern Architectural Evolution Summary Chapter 6: A-ESA Governance Techniques Guide 1: Customizing Modeling for Purpose Adopting A-ESA Model Form(s) Following a Modeling Process Customizing A-ESA Architectural Style Customizing A-ESA Solution Operating Model Customizing A-ESA Areas/Views Customizing A-ESA Elements Guide 2: Applying Leading Practice Architectural Tenet Architectural Pattern and Template Solution Pattern Service Template Guide 3: Key Tradeoff Consideration Similarity and Dissimilarity Analyses Similarity Analysis Tradeoff Analysis Key Architectural Considerations Big Architecture Decisions Business Decisions Architecture Decision Validation Comparative Rating Techniques Guide 4: Application Architecture Techniques Serviced-based Application Technique Abstraction Grouping and Layering Granularity Cohesion Coupling Autonomy and Isolation Separation of Concerns Example of Application Partitioning Practices General Application Partitioning MSA Application Partitioning Application Component Interface Specification Application Domain Structuring (Stages) Microservice Domain Structuring (Steps) Application Data Service Structuring Guide 5: Technical Architecture Techniques Deployment Package Mapping NFR-driven Operational Excellence Technical Data Service Structuring Guide 6: Effective Governance Governance Authority Governance Enforcement Functional Governance Operational Governance Architecture Validation Governance Automation Guide 7: Solution Management Context Architectural Assessment Requirements Management Quality Measurement Indicators Techniques for Measuring Requirements Cost Control and Management Cost Impact on Sustainability Cost Impact on Deployment Approach Test Management Risk Management Asset Management Guide 8: Architecture Adoption Event (AAE) Summary Epilogue Appendix I: A-ESA Spec Addendum A-ESA Base Element List A-ESA Base Element Definition A-ESA Assistive Element List A-ESA Commonly Used Elements A-ESA Commonly Used View Areas A-ESA Naming Conventions Appendix II: A-ESA Tools Appendix III: Modeling Language Comparison Appendix IV: ESA Architect’s Roles and Skills Appendix V: FAQs about A-ESA About A-ESA’s Relevance to Other Architectures How Does ESA Differ from EA and SA? What’s the Enterprise Systems Architecture? Why Is ESA More Demanding than EA and SA? What Factors Contribute to EA’s Ineffectiveness in Many Cases? Why Is the Traditional ITA Not Working Well? How Can Software Architects Take Advantage of A-ESA? What Is the Role of the ESA Model in Enterprise Transformation? What’s the Scope of ESA Across the Solution Space? About the A-ESA Approach Why Does A-ESA Take an IT Service-Based Approach? How Can I Make the A-ESA Language Easier to Understand? Who Should Assume Responsibility for ESA? What About ESA Tool Automation? About the Agile Architecture Why Is Agile Closely Related to ESA? Does A-ESA Use Agile Frameworks? Is Design Thinking Valuable for ESA? About Solution Process and Management How Does A-ESA Relate to Solution Management? Does Gap Analysis Fall Under ESA? Why Is Cost Mentioned in Several Places in this Book? How Do I Assess A-ESA’s Effectiveness and Value? Bibliography Index