Strategies for testing multi-user desktop application

We are developing a multi-user desktop application with C# 3.5, windows forms and sql 2008. There are various things I want to test - 1) performance - how application behaves when multiple users are accessing the database? 2) How to simulate a conflict, and test how application is helping out the user. How can I test the above开发者_JAVA百科 scenarios?

Any other scenarios you can think of?

thanks

We need to see how the application communicates with DB layer

• Web Services or stored procedure calls
• For Stored proceduress I would suggest using SQLQueryStress - sql server query performance testing tool
• Alternatively if it through web services I would suggest testing using VSTT
• VSTT has good information and articles on web testing, load testing
• Visual Studio Performance Testing Quick Reference Guide (Version 2.0) Published http://blogs.msdn.com/b/edglas/archive/2010/04/13/visual-studio-performance-testing-quick-reference-guide-version-2-0-published.aspx

One more alternate option is

• SQL 2008 has data services - Exposing Stored procedures as Web Services
• You can exposre core procedures and load test them as web services in VSTT