Checking whether a system adequately prevents, detects and recovers from operational problems such as downed network connections, data bases which become unavailable, equipment failures and operator errors.
Here are Donald Firesmith's ideas about Robustness Testing∞
Also check out the website of Codenomicon∞
. Codenomicon provides automated tools with a systematic approach to testing critical software. Codenomicon testing technology ensures the robustness, reliability and security of information technology systems effectively and cost-efficiently.