Scott Wlaschin - Talk Session: Domain Modeling Made Functional

Scott Wlaschin explains how to use statically typed functional programming to represent business domains and enforce business rules at compile time.

Explore DDD 2019 - Denver, Sept. 16-20 Statically typed functional programming languages encourage a very different way of thinking about types. The type system is your friend, not an annoyance, and can be used in many ways that might not be familiar to OO programmers. Types can be used to represent the domain in a fine-grained, self-documenting way. And in many cases, types can even be used to encode business rules so that you literally cannot create incorrect code. You can then use the static type checking almost as an instant unit test — making sure that your code is correct at compile time. In this talk, Scott looks at some of the ways you can use types as part of a domain-driven design process, with some simple real-world examples. No jargon, no maths, and no prior FP experience necessary. About Scott Wlaschin Scott Wlaschin is a developer, architect, and author. He is the author of the popular F# site fsharpforfunandprofit.com, and the book "Domain Modeling Made Functional", published by Pragmatic Bookshelf. Known for his non-academic approach to functional programming, Scott is a popular speaker and has given talks at NDC, F# Exchange, DDD Europe, and other conferences around the world. WEBSITE: exploreddd.com TWITTER: twitter.com/ExploreDDD