This advanced-level .NET RIA Services session provides an "under-the-covers" view of how the technology works. Come learn about common architectural patterns, key design principles, and tools to work with a variety of data access layers, application logic patterns and client-usage scenarios. Examine query and unit of work patterns, custom methods, validation, authentication and authorization metadata, authoring custom validations, and using asynchronous operations effectively on the client. Hear tips and tricks to help you get the most out of .NET RIA Services in advanced scenarios. This session assumes existing experience with .NET RIA Services.