Donald Rumsfeld was right: it's the unknown unknowns that are the real killers in software development. Design decisions made too early are just speculations without facts. But you must have architecture in place before you can do anything. This session talks about the tension between architecture & design in agile projects, discussing two key elements of emergent design (utilizing the last responsible moment and harvesting idiomatic patterns) and how to de-brittlize your architecture, so that you can play nicely with others. This talk includes both proactive (test-driven development) and reactive (refactoring, metrics, visualizations, tests) approaches to discovering design, and discusses the use of custom attributes, DSLs, and other techniques for utilizing them. The goal of this talk is to provide nomenclature, strategies, and techniques for allowing design to emerge from projects as they proceed, keeping your code in sync with the problem domain.
Definitely worth watching...
Neal Ford is Director, Software Architect, and Meme Wrangler at ThoughtWorks, a global IT consultancy with an exclusive focus on end-to-end software development and delivery. He is also the designer and developer of applications, magazine articles, video/DVD presentations, and author and/or editor of eight books spanning a variety of subjects and technologies, including the most recent Presentation Patterns.
DevNation 2014 - Neal Ford - Opening Keynote: Agile Architecture and Design.