Time-based domain events quickly

Time-Based Domain Events are a niche in the studies of business modelling. Moreover, there is no straightforward answer to whether the technology would be appropriate to support them efficiently. Dealing with time very often proves to be a tough challenge. Especially bearing in mind distributed computing and various aspects of it. However, it is very likely that in your Domain, there is a plethora of Domain Events triggered by a precisely defined point in time.

The purpose of this light talk is to elaborate quickly, showing real business scenarios, what types of domain events triggered by the time can be explored including Aggregate Level events, Just in time events and Context-wide events.

Just in time events on Kafka

Dealing with time very often proves to be a tough challenge. Especially bearing in mind distributed computing and various aspects of it. However, it is very likely that in your Domain, there is a plethora of Domain Events triggered by a precisely defined point in time which closely relates to the concept of Just In Time events.

The purpose of this presentation is to tackle difficulties in proper and reliable design in order to fulfil business needs where Just In Time Events are concerned. In the first place, some brief overview of a general idea is given. Secondly, the focus is put on the real requirements such as interaction with domain models. Next part includes technical exploration of solution backed up with Kafka where possibilities offered by Processor API are explored.

The presentation contains some code snippets written in Kotlin.

Time-based Domain Events Modelling

Time-Based Domain Events are a niche in the studies of business modelling. Moreover, there is no straightforward answer to whether technology would be appropriate to support them efficiently. Dealing with time very often proves to be a tough challenge. Especially bearing in mind distributed computing and various aspects of it. However, it is very likely that in your Domain, there is a plethora of Domain Events triggered by a precisely defined point in time.
The purpose of this presentation is to tackle difficulties in proper and reliable model in order to fulfil business needs where Time-Based Domain Events are concerned. In the first place, some brief overview of a general idea is given. Secondly, the focus is put on the real requirements such as interaction with domain models. Next part includes exploration of possible approaches to implementation of Time-based domain events. It is hoped that this presentation will inspire interested parties to further research.

Event Storming to Code

If you ever wonder how to translate Design Level Event Storming into working code using Domain-Driven Desing tactical building blocks then this session is a perfect opportunity to learn and exchange ideas about it.

I will introduce you to the simple but real domain model and elaborate on implementation options. The code snippets are based on JVM stack.

DDD, JVM, event storming, lightning talk