num_pages: 312
description: You want increased customer satisfaction faster development cycles and less wasted work. Domain-driven design (DDD) combined with functional programming is the innovative combo that will get you there. In this pragmatic down-to-earth guide you'll see how applying the core principles of functional programming can result in software designs that model real-world requirements both elegantly and concisely - often more so than an object-oriented approach. Practical examples in the open-source F# functional language and examples from familiar business domains show you how to apply these techniques to build software that is business-focused flexible and high quality. Domain-driven design is a well-established approach to designing software that ensures that domain experts and developers work together effectively to create high-quality software. This book is the first to combine DDD with techniques from statically typed functional programming. This book is perfect for newcomers to DDD or functional programming - all the techniques you need will be introduced and explained. Model a complex domain accurately using the F# type system creating compilable code that is also readable documentation---ensuring that the code and design never get out of sync. Encode business rules in the design so that you have compile-time unit tests and eliminate many potential bugs by making illegal states unrepresentable. Assemble a series of small testable functions into a complete use case and compose these individual scenarios into a large-scale design. Discover why the combination of functional programming and DDD leads naturally to service-oriented and hexagonal architectures. Finally create a functional domain model that works with traditional databases NoSQL and event stores and safely expose your domain via a website or API. Solve real problems by focusing on real-world requirements for your software. What You The code in this book is designed to be run interactively on Windows Mac and Linux.You will need a recent version of F# (4.0 or greater) and the appropriate .NET runtime for your platform.Full installation instructions for all platforms at fsharp.org.
language: English
title: Domain Modeling Made Functional: Tackle Software Complexity with Domain-Driven Design and F#
publisher: Pragmatic Bookshelf