Paul Rayner

Presentations

Strategic Design Using DDD

Not every part of a software system will be well-designed. How do you know where to put the time and effort to refine the design, or refactor existing code? Learn how strategic Domain-Driven Design (DDD) patterns can show you how to know which parts of your system matter most to your business and how to focus your team's design efforts most effectively.

Context mapping and Core Domain are key concepts in DDD, providing valuable techniques and insights into where to focus your design attention, yet most developers have never heard of them. This session will introduce the tools of strategic DDD and show you how they can shine a light on your design challenges.

Using DDD Patterns for Supple Design

Come on a guided tour of how applying Domain-Driven Design (DDD) building block patterns can make your code cleaner, more expressive, and more amenable to change. We cover examples of DDD patterns such as entities, value objects, closure of operations and side-effect-free functions. We will focus particularly on how implementing value objects can lead to more supple design.

When good design really matters, DDD building block patterns enable your design to model the business domain you are working with more richly. They allow you to collaborate with domain experts to build deep, useful models of the domain in your code that solve difficult business problems with elegance and simplicity.

This is a highly interactive modeling session which walks through diagrams and code samples to demonstrate how the application of these patterns to modeling can make writing and reading coding fun again, while improving the effectiveness of the code you write. Come prepared to think, ask and answer questions, and learn how to write the best code where it matters most.

Introduction to Lean-Agile Software Development

Successful software development is about building the right product at the right time for your customers. This means focusing attention on the right places in the portfolio of projects and products that your company provides, and optimizing the entire value stream from "concept to cash" for your customers and the development teams.

Agility is more than just adopting Scrum or some other agile process framework; it involves adopting a new set of Lean-Agile values, principles and practices through the entire software development lifecycle and beyond in order to provide value to customers earlier and more often.

Lean-Agile software development consists of frequent feedback loops, intense team collaboration, continuous improvement, business and customer involvement, baking quality in and consistent delivery of valuable software. Learn how these Lean principles and practices transform software development and the radical difference it can make in your development work and wider organization.

Measure for Measure – Lean Principles for Effective Metrics and Motivation

This presentation explores the nature of motivation and the place of metrics and measurement in software development, and how lean software development principles and practices shed light on motivation and metrics and how they can be used to support deep organizational improvement.

We will examine the nature of motivation in terms of the four intrinsic rewards that drive positive engagement, and also how certain approaches to measuring and managing performance lead to organizational dysfunction. We will also show how the application of lean principles such as building quality into the product, respect for people and optimizing the whole enable more effective approaches to motivation and metrics in software development.

ATDD/BDD with Cucumber Workshop (Bring A Laptop)

Acceptance Test-Driven Design (ATDD), or Behavior-Driven Development (BDD), employs the approach of specification by example. Cucumber is such an amazing ATDD tool because it’s so good at mapping stories and acceptance criteria to automated functional tests.

Product Owners, developers and testers collaborate together to write acceptance criteria in natural language and unobtrusively automate tests for them. This is a hands-on workshop that will have you writing and automated acceptance tests on your own laptop by the conclusion of this session.

Cucumber enables a team to collaboratively create specific examples that specify what the system should do from the user's perspective. These executable specifications function as acceptance criteria for the user stories the team is developing. This workshop will cover:

• Building quality in
• Understanding the place of ATDD - The agile testing matrix.
• Why test automation?
• Build the right product using specification by example
• The need for Ubiquitous Language
• Writing scenarios with Cucumber
• Using Cucumber to test web applications

This is a hands-on 3 hour workshop with Cucumber using Java, you will need a laptop running the JDK and a text editor (doesn't have to be an IDE). Class tools, materials and code exercises will be provided.