is your guide to real-world development practices on Microsofts XAML-based platforms, with examples in WPF, Windows 8.1, and Windows Phone 8.1. Learn how to properly plan and architect an application on one or more of these platforms for a robust, scalable solution.In Part I, authors Buddy James and Lori Lalonde introduce you to XAML and reveal proven techniques for developing successful line-of-business applications. Youll also find out about some of the conflicting needs and interests that you might encounter as an enterprise XAML developer.Part II begins to lay the groundwork to help you properly architect your application, providing you with a deeper understanding of domain-driven design and the Model-View-ViewModel design pattern. You will also learn about proper exception handling and logging techniques, and how to cover your code with unit tests to reduce bugs and validate your design.Part III explores implementation and deployment details for each of Microsofts XAML UIs, along with advice on deploying and maintaining your application across different devices using version control repositories and continuous integration. is for intermediate to experienced developers looking to improve their professional practice. Readers should have experience working with C# and at least one XAML-based technology (WPF, Silverlight, Windows Store, or Windows Phone).