From the publisher website or publicity

Diagnoses the Cause of End-user Performance Problems

 *With Topaz Diagnostics, customers can reduce the time spent locating the source of problems and thereby resolve issues faster. Topaz Diagnostics identifies infrastructure problems that cause end-user performance issues. Customers who use Topaz Diagnostics can:
 *Break down transaction response times to determine the source of problems
 *Identify the cause of availability failures
 *View problematic user experiences in real-time
 *Pinpoint performance bottlenecks in the network to specific hops
 *Isolate problematic page components

Keywords
infrastructure
IT Infrastructure
performance
performance monitoring
performance testing
response times
testing performance
Topaz
Topaz diagnostics
transaction times

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Vendor: Mercury Interactive