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Conference Program

8:30 AM

Room 1

High-Performance Messaging & Services with Aeron

Martin Thompson

High-Performance Messaging & Services with Aeron

Martin Thompson

In this workshop, you will learn how to build services with Aeron and SBE in Java. Services capable of handling millions of messages per second with very low and predictable response times. We will cover some networking theory and the design of Aeron so you know how to use it with mechanical sympathy.

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Room 2

Faster, More Effective Test-Driven Development

James Shore

Faster, More Effective Test-Driven Development

James Shore

Are your tests slow and brittle? Do you get a sinking feeling when you need to refactor? Do you worry that your unit tests aren’t actually testing anything important? If so, you could benefit from writing tests that don’t use mock objects. In this workshop, you’ll use Node.js to explore a cutting-edge approach to test-driven development (TDD) that doesn’t need mocks or end-to-end tests. We’ll re-examine test-driven development from first principles to create tests that are fast, effective, and easy to write. We’ll tackle real-world problems such as testing infrastructure, evolving mock-free designs from scratch, and working with existing mock-based designs.

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Room 3

Visualising software architecture with the C4 model

Simon Brown

Visualising software architecture with the C4 model

Simon Brown

It's very likely that the majority of the software architecture diagrams you've seen are a confused mess of boxes and lines. Following the publication of the Manifesto for Agile Software Development in 2001, teams have abandoned UML, discarded the concept of modeling and instead place a heavy reliance on conversations centered around incoherent whiteboard diagrams or shallow 'Marketecture' diagrams created with Visio. Moving fast and being agile requires good communication, yet software development teams struggle with this fundamental skill. A good set of software architecture diagrams are priceless for aligning a team around a shared vision and for getting new-joiners productive quickly.

This hands-on workshop explores the visual communication of software architecture, based upon a decade of my experiences working with software development teams large and small across the globe. We'll look at what is commonplace today, the importance of creating a shared vocabulary, diagram notation, and the value of creating a lightweight model to describe your software system. The workshop is based upon the C4 model, which I created as a way to help software development teams describe and communicate software architecture, both during up-front design sessions and when retrospectively documenting an existing codebase. It's a way to create maps of your code, at various levels of detail. Static structure, runtime and deployment diagrams are all covered, so you'll be able to tell different stories to different audiences. We'll wrap up the day by looking at the tooling landscape and diagram automation to keep your diagrams in sync with your source code.

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