O&B Insights: #domaindrivendesign

Transformative Ideas for Leaders in the Fourth Industrial Revolution

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Changing The Way We Use JPA

June 24, 2021 - I’ve been updating some training materials recently, and thinking about better ways of teaching and talking about JPA. One of the things I’ve been thinking...
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Isolating the Domain Logic

January 4, 2017 - Lorenzo explains the reason why code in applications is arranged and split in a certain way, and provides tips for arranging your application. In one...
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Architectural Layers and Modeling Domain Logic

November 14, 2016 - Lorenzo corrects the impression that the domain model pattern is always the best to use. He provides options and tips on when to use (and...
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Domain-Driven Design: Cargo Shipping Example (Part 2)

September 30, 2014 - Lorenzo continues the discussion on DDD, this time with a focus on persistence of value objects. One of my colleagues asked an interesting question about my...
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Domain-Driven Design: Cargo Shipping Example

September 14, 2014 - Lorenzo discusses DDD using a cargo shipping scenario. I’ve always found the cargo shipping example used in Eric Evan’s book to be quite useful in learning DDD. Here are some...
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Quantifying Domain Model versus Transaction Script

July 1, 2014 - I’ve been conducting training classes (with Orange and Bronze) that cover topics like TDD, design patterns (GoF), patterns of enterprise application architecture (based on PoEAA book...
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Gaining Domain Knowledge of ISO-8583 Messages

February 22, 2014 - Let’s talk about how we improved code readability and gained domain knowledge in creating ISO 8583 messages in jPOS. At first, we were writing code like this. And...