diagnostic
adjective
uk/ˌdaɪəɡˈnɒstɪk/ us IT, PRODUCTION
used for discovering the characteristics or cause of a problem in a system or machine:
Service and support on the website give users direct access to the same diagnostic tools used by the company's technicians.
diagnostic equipment
used for discovering the type or cause of an illness or other problem:
John is an executive with a company that schedules and manages MRIs and other diagnostic tests.
diagnostic information/questions/criteria
diagnostic
noun
uk/ˌdaɪəɡˈnɒstɪk/ usdiagnostics
[ plural ] IT, PRODUCTION
methods or systems for discovering the cause of a problem, illness, etc.:
Requests for off-site testing and diagnostics are frequently ignored or refused without explanation.
an automated diagnostics system