dddesigner

Software Architecture is still human.

AI can write code. Complex systems still need to be understood and designed.

DDDDesigner helps you build a unified architectural model that connects contexts, aggregates, events, processes, and implementation.

A new reality for software development

AI dramatically reduced the cost of implementation. It did not reduce the complexity of the systems we build.

AI has made writing code dramatically faster. But it has not eliminated the need to design the system. The cheaper it becomes to write code, the more important it becomes to understand what code should be written in the first place.

The bottleneck is no longer implementation. The bottleneck is design.

The problem

The more complex the system, the harder it is to keep a coherent model

As a system grows, its architecture is spread across documentation, diagrams, code, and conversations. Keeping one coherent model becomes harder.

Architecture gets scattered across artifacts

Some decisions live in documentation, some in diagrams, and some in code. Over time, these representations start to drift apart.

The team loses a shared model

Different people see the same system differently. Architectural decisions have to be explained again, while important context gets lost between meetings and documents.

The impact of change is hard to see

A single decision can affect processes, events, contexts, and implementation. When those connections are not visible, the team has to reconstruct them every time.

The tools

There are plenty of tools. There is no unified model of the system.

Teams use whiteboards, diagramming tools, documentation, modeling tools, and IDEs to work on architecture. Each solves a different problem. But a complex system is not a collection of independent diagrams.

Architectural decisions need to stay connected.

Design the system as a whole

DDDDesigner connects architectural models so you can see not just individual artifacts, but the system and the relationships within it.

Contexts and aggregates

Model bounded contexts, aggregates, commands, events, and policies while keeping their relationships explicit.

Processes and events

Describe processes and event flows while keeping them connected to contexts and other elements of the model.

From model to implementation

Use your architectural model as the foundation for implementation and keep the connection between design and code.

Domain-Driven Design

Built around Domain-Driven Design

DDDDesigner brings strategic and tactical domain modeling into one connected workspace. Its approach follows the foundations described by Eric Evans and Vaughn Vernon, including bounded contexts, aggregates, CQRS, and event-driven design.

AI can write the code. Who designs the system?

AI works well with code when it understands the task and its context. DDDDesigner keeps that context explicit in an architectural model: boundaries, dependencies, processes, events, and architectural decisions.

Humans define the architecture. AI helps implement it.

For people responsible for the system as a whole

Software Architects

Design boundaries, dependencies, and processes while keeping architectural decisions in a unified model.

Tech Leads

Give the team a shared context and make architectural decisions before implementation begins.

Pricing

Start free. Upgrade when your practice grows.

Use the plan that fits how your team works today.

Free

For exploring the product and modelling your first system.

Freeforever
  • Up to 3 projects
  • Up to 5 members
  • Core architectural modelling
Start for free

Pro

For teams that need room to model and collaborate without plan limits.

Contact usfor pricing
  • Unlimited projects
  • Unlimited members
  • Everything in Free
Choose Pro

Design the system first. Then let AI write the code.

Create a project in DDDDesigner and start designing your architecture.

Start designing