1. The Jukebox is a.NET web application that plays streaming music files to it’s clients according to their favorites musical genres. Clients can rate the songs, block them from their own playing list and even upload their own music files to the application’s data base. Networked Software Systems Lab Spring 2009

2. ♫.NET 3.5 Framework ♫ Microsoft Visual Studio 2008 ♫ C# ♫ SQL ♫ ASP.NET ♫ LINQ ♫ AJAX ♫ Java Script ♫ Silverlight Technologies & Languages Design Data Access LINQ Data Base SQL Business Logic C# Gui ASP.NET, Ajax

3. ♫ SQL ♫ Microsoft SQL server ♫ Tables: ♫ Uniquidentifiers ♫ Use tables that connects two other tables to save space and for flexibility. ♫ Views ♫ Stored Procedures: ♫ Transactions The Database ♫ LINQ ♫ Interface ♫ SQL provider ♫ Method overloading Data Access Layer

4. ♫ C# ♫ Containers of objects: has-a relation ♫ Separation of user’s fields and user’s operations Business Logic GUI ♫ GUI for administrator and for client ♫ ASP.NET web forms ♫ AJAX ♫ Media player Silverlight add-on ♫ JavaScript