This super intensive CQRS Immersion weekend is not for the fainthearted. If you like to be deeply immersed in learning, thinking and discussing Domain Events, Event Sourcing and how to apply DDD, this weekend will be the greatest fun! Join Greg and other die-hards for 2 twelve-hour days - all about system building and architectures with Domain Driven Design.

The largest problem many run into with Domain Driven Design is in getting the abstract concepts implemented in a concrete way. Many of the stereotypical architectures people use actually make it impossible to apply DDD.

Greg will help you avoid this by teaching you all about Command Query Separation (CQRS), Domain Events, Event Sourcing and how to effectively apply DDD within an organisation.

• Apply DDD
• Use CQRS
• Understand Domain Events
• Apply Event Sourcing

SATURDAY 09:00-20:30
We'll start at 09:00 with some coffees and pastries. The theme of this day is to review Domain Driven Design - to provide the foundations for the evening and Sunday's sessions.

Lunch will be at the Crown Tavern at around 13:00

At around 17:00 we'll have some pizza in the class room, whilst going over the following:

• Introduction/Outline
• User intention and why it is important
• Exercise: Building a task based UI
• Command and Query Separation
• Introduction to events as a storage mechanism
• Exercise: Creating an event storage system

SUNDAY 09:00-18:30

• Performance optimizations, snapshots
• Creation of an aggregate root that tracks its own state
• Conext Specifications to capture intent
• How events change testing strategies

Lunch at the Crown Tavern

• The Read System
• Partitionability of work, developer specialization, and outsourcing
• Eventual Consistency
• Organizational Sagas and the Ubiquitous Integration Language
• Versioning of the event log over long periods of time
• Pub/Sub and building disconnected systems

We'll finish at around 18:30, after which you can join Greg for a drink or two at the Slaughtered Lamb.