Learning Domain Driven Design Aligning Software Architecture and Business Strategy 1st Edition by Vladik Khononov ISBN 1098100131 9781098100131

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ISBN 10: 1098100131
ISBN 13: 9781098100131
Author: Vladik Khononov

Learning Domain Driven Design Aligning Software Architecture and Business Strategy 1st Edition Table of contents:

I. Strategic Design

1. Analyzing Business Domains

What Is a Business Domain?

What Is a Subdomain?

Types of Subdomains

Comparing Subdomains

Identifying Subdomain Boundaries

Domain Analysis Examples

Gigmaster

BusVNext

Who Are the Domain Experts?

Conclusion

Exercises

2. Discovering Domain Knowledge

Business Problems

Knowledge Discovery

Communication

What Is a Ubiquitous Language?

Language of the Business

Scenarios

Consistency

Model of the Business Domain

What Is a Model?

Effective Modeling

Modeling the Business Domain

Continuous Effort

Tools

Challenges

Conclusion

Exercises

3. Managing Domain Complexity

Inconsistent Models

What Is a Bounded Context?

Model Boundaries

Ubiquitous Language Refined

Scope of a Bounded Context

Bounded Contexts Versus Subdomains

Subdomains

Bounded Contexts

The Interplay Between Subdomains and Bounded Contexts

Boundaries

Physical Boundaries

Ownership Boundaries

Bounded Contexts in Real Life

Semantic Domains

Science

Buying a Refrigerator

Conclusion

Exercises

4. Integrating Bounded Contexts

Cooperation

Partnership

Shared Kernel

Customer–Supplier

Conformist

Anticorruption Layer

Open-Host Service

Separate Ways

Communication Issues

Generic Subdomains

Model Differences

Context Map

Maintenance

Limitations

Conclusion

Exercises

II. Tactical Design

5. Implementing Simple Business Logic

Transaction Script

Implementation

It’s Not That Easy!

When to Use Transaction Script

Active Record

Implementation

When to Use Active Record

Be Pragmatic

Conclusion

Exercises

6. Tackling Complex Business Logic

History

Domain Model

Implementation

Building Blocks

Managing Complexity

Conclusion

Exercises

7. Modeling the Dimension of Time

Event Sourcing

Search

Analysis

Source of Truth

Event Store

Event-Sourced Domain Model

Advantages

Disadvantages

Frequently Asked Questions

Performance

Deleting Data

Why Can’t I Just…?

Conclusion

Exercises

8. Architectural Patterns

Business Logic Versus Architectural Patterns

Layered Architecture

Presentation Layer

Business Logic Layer

Data Access Layer

Communication Between Layers

Variation

When to Use Layered Architecture

Ports & Adapters

Terminology

Dependency Inversion Principle

Integration of Infrastructural Components

Variants

When to Use Ports & Adapters

Command-Query Responsibility Segregation

Polyglot Modeling

Implementation

Projecting Read Models

Challenges

Model Segregation

When to Use CQRS

Scope

Conclusion

Exercises

9. Communication Patterns

Model Translation

Stateless Model Translation

Stateful Model Translation

Integrating Aggregates

Outbox

Saga

Process Manager

Conclusion

Exercises

III. Applying Domain-Driven Design in Practice

10. Design Heuristics

Heuristic

Bounded Contexts

Business Logic Implementation Patterns

Architectural Patterns

Testing Strategy

Testing Pyramid

Testing Diamond

Reversed Testing Pyramid

Tactical Design Decision Tree

Conclusion

Exercises

11. Evolving Design Decisions

Changes in Domains

Core to Generic

Generic to Core

Supporting to Generic

Supporting to Core

Core to Supporting

Generic to Supporting

Strategic Design Concerns

Tactical Design Concerns

Transaction Script to Active Record

Active Record to Domain Model

Domain Model to Event-Sourced Domain Model

Generating Past Transitions

Modeling Migration Events

Organizational Changes

Partnership to Customer–Supplier

Customer–Supplier to Separate Ways

Domain Knowledge

Growth

Subdomains

Bounded Contexts

Aggregates

Conclusion

Exercises

12. EventStorming

What Is EventStorming?

Who Should Participate in EventStorming?

What Do You Need for EventStorming?

The EventStorming Process

Step 1: Unstructured Exploration

Step 2: Timelines

Step 3: Pain Points

Step 4: Pivotal Events

Step 5: Commands

Step 6: Policies

Step 7: Read Models

Step 8: External Systems

Step 9: Aggregates

Step 10: Bounded Contexts

Variants

When to Use EventStorming

Facilitation Tips

Watch the Dynamics

Remote EventStorming

Conclusion

Exercises

13. Domain-Driven Design in the Real World

Strategic Analysis

Understand the Business Domain

Explore the Current Design

Modernization Strategy

Strategic Modernization

Tactical Modernization

Cultivate a Ubiquitous Language

Pragmatic Domain-Driven Design

Selling Domain-Driven Design

Undercover Domain-Driven Design

Conclusion

Exercises

IV. Relationships to Other Methodologies and Patterns

14. Microservices

What Is a Service?

What Is a Microservice?

Method as a Service: Perfect Microservices?

Design Goal

System Complexity

Microservices as Deep Services

Microservices as Deep Modules

Domain-Driven Design and Microservices’ Boundaries

Bounded Contexts

Aggregates

Subdomains

Compressing Microservices’ Public Interfaces

Open-Host Service

Anticorruption Layer

Conclusion

Exercises

15. Event-Driven Architecture

Event-Driven Architecture

Events

Events, Commands, and Messages

Structure

Types of Events

Designing Event-Driven Integration

Distributed Big Ball of Mud

Temporal Coupling

Functional Coupling

Implementation Coupling

Refactoring the Event-Driven Integration

Event-Driven Design Heuristics

Conclusion

Exercises

16. Data Mesh

Analytical Data Model Versus Transactional Data Model

Fact Table

Dimension Table

Analytical Models

Analytical Data Management Platforms

Data Warehouse

Data Lake

Challenges of Data Warehouse and Data Lake Architectures

Data Mesh

Decompose Data Around Domains

Data as a Product

Enable Autonomy

Build an Ecosystem

Combining Data Mesh and Domain-Driven Design

Conclusion

Exercises

Closing Words

Problem

Solution

Implementation

Further Reading

Advanced Domain-Driven Design

Architectural and Integration Patterns

Modernization of Legacy Systems

EventStorming

Conclusion

A. Applying DDD: A Case Study

Five Bounded Contexts

Business Domain

Bounded Context #1: Marketing

Bounded Context #2: CRM

Bounded Context #3: Event Crunchers

Bounded Context #4: Bonuses

Bounded Context #5: The Marketing Hub

Discussion

Ubiquitous Language

Subdomains

Boundaries of Bounded Contexts

Conclusion

B. Answers to Exercise Questions

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Tags: Vladik Khononov, Domain Driven, Design Aligning, Software Architecture, Business Strategy