Discover Microsoft .NET RIA Services and Silverlight 3 and how they simplify the traditional n-tier application architectures by integrating the ASP.NET and Silverlight platforms. The RIA Services provides patterns for writing application logic that runs on the mid-tier and controls access to data for queries, changes and custom operations. It also provides end-to-end support for common tasks such as data validation, authentication and roles. Learn also how Silverlight 3 improvements enable rapid development and make your development process more productive.