ORIGIN EDITION

1. Problem Statement

As PHP applications grow to represent increasingly complicated business domains, organizing code around technical components alone becomes insufficient. Application rules, domain terminology, entity relationships, and operational workflows may become scattered across controllers, services, database structures, and individual modules. When different parts of an application interpret the same concepts differently, inconsistencies can develop between business rules and technical implementation. Changes to one domain area may also influence unrelated components when boundaries and dependencies are not clearly defined. Without a structured domain model, maintaining complex application behavior and coordinating architectural changes becomes increasingly difficult.

2. Solution

Origin Edition introduces Domain-Driven Design as an approach to organizing PHP applications around the subject areas they represent. The course examines domain discovery, ubiquitous language, bounded contexts, context mapping, entities, value objects, aggregates, and domain services. Dedicated modules explore domain events, application workflows, repository abstractions, modular monoliths, and integration with existing application structures. Further topics cover domain testing, architectural governance, schema evolution, legacy modernization, and model consistency. The final applied project combines these concepts into a modular educational administration system with independent domain areas, clearly defined business rules, and structured application workflows.

3. What's Inside

• Module 1: Foundations of Domain-Driven Design
  Explore DDD principles, domain modeling, and application architecture.
• Module 2: Domain Discovery and Event Storming
  Study domain events, workflows, and event storming techniques.
• Module 3: Ubiquitous Language and Domain Terminology
  Develop consistent domain terminology for PHP classes and methods.
• Module 4: Strategic Domain Design
  Explore core domains, supporting domains, and architectural responsibilities.
• Module 5: Bounded Contexts and Context Mapping
  Study bounded contexts, domain boundaries, and integration patterns.
• Module 6: Domain Model Discovery and Classification
  Identify entities, value objects, services, aggregates, and domain events.
• Module 7: Entities, Identity, and Lifecycle Management
  Explore entity identity, state changes, and lifecycle management.
• Module 8: Value Objects and Immutable Domain Data
  Study immutable value objects, validation, and value-based comparison.
• Module 9: Aggregates and Consistency Boundaries
  Explore aggregate roots, invariants, and consistency rules.
• Module 10: Domain Invariants and Business Rules
  Study domain validation, business rules, and state restrictions.
• Module 11: Domain Services and Business Policies
  Explore domain services, business policies, and rule evaluation.
• Module 12: Repository Patterns and Domain Persistence
  Study repository interfaces, data retrieval, and persistence boundaries.
• Module 13: Factories and Domain Object Construction
  Explore factories, object initialization, and construction rules.
• Module 14: Application Services and Use Case Coordination
  Study application services, use cases, and transaction coordination.
• Module 15: Domain Events and State Change Representation
  Explore domain events, state changes, and event publication.
• Module 16: Domain Workflows and State Machines
  Study workflow states, transitions, conditions, and state machines.
• Module 17: Domain Policies and Specification Pattern
  Explore specification patterns, reusable rules, and policy evaluation.
• Module 18: Modular Monolith Architecture
  Study internal modules, application boundaries, and dependency organization.
• Module 19: Anti-Corruption Layers and Legacy Integration
  Explore adapters, translation layers, and legacy system integration.
• Module 20: Domain Persistence and Object-Relational Mapping
  Study database mapping, object persistence, and aggregate reconstruction.
• Module 21: Domain Evolution and Schema Migrations
  Explore domain changes, database migrations, and compatibility management.
• Module 22: Domain Testing and Model Verification
  Study domain unit testing, invariant checks, and model verification.
• Module 23: Architectural Governance and Decision Records
  Explore architectural decisions, documentation, and dependency rules.
• Module 24: Legacy Modernization and Domain Extraction
  Study legacy modernization, domain extraction, and incremental migration.
• Module 25: Applied Architecture Studio — Modular Educational Administration System
  Build a modular PHP educational administration system using domain-driven architecture.

4. Who Is This For?

A suitable choice if you:

• Have experience with PHP and object-oriented programming.
• Want to explore Domain-Driven Design through practical examples.
• Are interested in modeling complex business domains.
• Would like to learn how to define bounded contexts and domain boundaries.
• Want to understand entities, value objects, and aggregates in greater detail.
• Work with complex business rules and multi-stage workflows.
• Are interested in modular architecture and internal component organization.
• Want to learn how to design domain events and state machines.
• Want to expand your knowledge of architectural testing and system evolution.
• Are looking for comprehensive learning materials on Domain-Driven Design in PHP.

May not be suitable if you:

• Have not yet studied PHP fundamentals.
• Have not worked with classes, interfaces, services, and repositories.
• Are looking only for introductory materials on basic syntax.
• Expect only small examples without complex modeling.
• Do not plan to study the architecture of large applications.

5. What You'll Learn

By studying Origin Edition, you will explore the following areas:

• Principles of Domain-Driven Design.
• Discovering domain concepts and subject areas.
• Creating shared domain terminology.
• Designing core, supporting, and generic domains.
• Defining bounded contexts and context mapping.
• Modeling entities and their lifecycles.
• Creating immutable value objects.
• Designing aggregates and aggregate roots.
• Defining domain invariants and business rules.
• Building domain services and application services.
• Designing repository interfaces.
• Using factories to create complex domain objects.
• Organizing application use cases.
• Designing and processing domain events.
• Building state machines and multi-stage workflows.
• Using the specification pattern and domain policies.
• Building modular monolithic applications.
• Applying anti-corruption layers for integration with legacy structures.
• Organizing domain model persistence in relational databases.
• Managing domain model evolution and migrations.
• Writing tests for domain rules and invariants.
• Documenting architectural decisions.
• Analyzing and gradually updating legacy systems.
• Designing complex PHP applications based on Domain-Driven Design.

6. Refund Information

Refund conditions for Origin Edition are determined by the published Corvynimarix Refund Policy. Before placing an order, we recommend reviewing the refund criteria, request submission procedure, and applicable review timeframes.