The phrase "strict criteria" means that there are specific requirements or standards that must be met in a very precise and demanding way. Full definition
The end result is that plagiarism is common, and the quality of writing reflects a lack of strict criteria for employment of writers. (essaysupply.com)
The winners met strict criterion including 20 + years in the pet servicing and manufacturing industry. (wingdom.com)
Their approach is to independently analyze and verify each one with strict criteria in order to filter out the bad ones. (howtotoken.com)