The phrase "advocated system" is correct and usable in written English.
It can be used when referring to a system that has been supported or recommended by someone or a group.
Example: "The researchers presented an advocated system for improving energy efficiency in urban areas."
Alternatives: "recommended system" or "supported system".
But here, suddenly, he is advocating systems in which designers have defined the issues and determined the correct lessons to be learned.
He advocates systems to promote more serendipity (by which he seems to mean randomness)—Amazon could recommend books outside your usual genres, for example, just in case you like them.
He advocated a system to monitor disease and rapidly disseminate information, as a prime defense against biological warfare.
Mr Desmond, who also owns Channel 5, advocated a system of press regulation more similar to the Ofcom broadcasting regime.
Dr. Reemtsma advocated a system of "your fault" insurance in which individuals paid for medical problems that developed from having ignored clear health warnings.
The Siac hearings, the secret evidence and the special advocate system are not much more convincing than Rumsfeld's Kafkaesque "combatant status review tribunals" which were invented to persuade the US courts to dismiss habeas proceedings (an unusual attempt by the US to copy the UK?).
Mr. Monti also plans to propose naming a chief economist to oversee major merger assessments, and to use a devil's advocate system in which teams of officials in his office search for weaknesses in their colleagues' work before a decision is published.
In 2001 Hood and colleagues advocated a systems approach to biology.
I am not advocating whole system integration – and we do not need an expensive overhaul.
He advocates a system that puts most of the burden on owners of investment homes and luxury villas.
