Kerry and Rinat answer listener questions about code syntax, differences between event sourcing and relational storage, and concrete examples of Domain-Driven Design (DDD) concepts. Along the way, your questions lead them to questioning themselves and to consider an alternate approach.

Kerry and Rinat choose the event storage to use for their project. They’re using Windows Azure, so should they stick with Lokad CQRS event storage, or switch to Event Store from Event Store LLP? They discuss some of the pros and cons of their options, review some scaling approaches, and guess at what a transition may look like.

Rinat returns home from his trip to the United States which was filled with milestones, memories, and marriage. The guys briefly catch-up on some of the insights that were gained from looking over the fence at the Java ecosystem, and how it has made more progress than .NET in specific areas. They wrap-up with an intro to the DDD Summit, and how the things learned there and along the way will shape the upcoming episodes and code.

Kerry and Rinat introduce the Actor in the Actor Model of Computation. They wonder if the Actor’s embodiment of communication (via messaging) may simplify the way that they reason about and implement their solutions. They discuss this potential use of the Actor Model in the context of their current usage of Domain-Driven Design (DDD), Application […]

Kerry and Rinat dig into the Lokad CQRS project that laid the code foundation for their current projects. This open source sample provides a working slice of a production system’s registration and user management subdomains that were implemented with Aggregates and Event Sourcing. While they get into the details of its multi-Aggregate implementation, they cover […]

Kerry and Rinat review some of the lessons learned from the deployment of Lokad.CQRS. Then, they discuss Rinat’s blog post about those experiences, and some of his ideas for future improvement. This results in a sneak peek of the new event centric hosting infrastructure that will be used in their GTD sample project. Download (mp3): […]

In this episode, there is a lot of new code to dig into. Kerry and Rinat cover the newly added features, discuss how the console relates to future UIs and assists with ongoing maintenance, dabble in Event message design, and get into the CQS pattern that was used to implement some of the Entity classes. […]

Kerry and Rinat discuss changes to the ubiquitous language, the characteristics of lists and projects, and lessons learned from using a similar productivity system. In between, they probably talk too much about some variable names and system implementation details. Download (mp3): Episode 25 – These Aren’t The Projects You’re Looking For – (62 minutes) Subscribe […]

Kerry and Rinat dive into the GTD® code and discuss ways to choose words in the ubiquitous language. The new interactive shell allows them to use and shape the domain model as it evolves. In addition, an Event store is introduced to persist messages to disk, and they discuss ways to replay and view these […]

Kerry and Rinat revisit and correct some DDD terminology they used based on new learning and listener feedback. After they readdress Domain, Domain Model, Subdomains, Bounded Contexts, Published Language, Shared Kernel, and Anti-Corruption Layer, they try to relate these terms to real examples and code. Download (mp3): Episode 23 – Spaghetti-Free Terminology – (36 minutes) […]