Could anyone tell me what acronym KCO stands for? It's I guess related with testing. Could you provide me some idea/tools regarding this?

Hi jazzIIIlove

"Key controls" are identified parts of a system that let you test whether that system is performing the way it should. Compliance and auditing professionals (and software) let you define the key controls for your system. That system can be anything from a single piece of software, to the business processes for an entire company, although I can't see how you could say that the element "selenium" is a system that can be tested.

Anyway, key control definition, and testing for compliance is a pretty big subject. Can I ask what context you need to know this in? Is someone asking you to design a test system?