Thank you to our sponsors!

Domain Driven Design

Using .NET

Dave Rael

Why Domain-Driven?

• Collaboration

• Ubiquitous Language

• “Not all of a large system will be well-designed.” –Eric Evans

• “Is BDD the same as TDD? Yes. If you’re a programmer, and your entire team is programmers, and all your stakeholders are programmers…” –Dan North http://dannorth.net/2012/05/31/bdd-is-like-tdd-if/

Key Players

Udi Dahan, Eric Evans, Greg Young, Reggie Miller

Domain-Driven Design

Ubiquitous Language

Bounded Contexts

Domain Events

Top-Level System Architecture

Domain Driven Design

Ubiquitous Language

Aggregates

CQRS

Architecture/Implementation Within a Bounded Context

Commands And EventsBus.Send<BringYoungSkywalkerToMeCommand>();

Bus.Reply<AsYouWishMyMasterResponse>();

Bus.Publish<BroughtLukeBeforeMasterEvent>();

Bus.Publish<IHaveForseenItEvent>();

Stuff to Clone

• Loans

• https://github.com/raelyard/Loans.git

• https://github.com/raelyard/Loans.PublicEvents.git

• Fines

• https://github.com/raelyard/Fines.git

• https://github.com/raelyard/Fines.PublicEvents.git

You will use a Domain-DrivenDesign Approach