Protocol.
An algorithm, perhaps.
The Federal Rules of Civil Procedure.
The Federal Rules of Civil Procedure
Protocols are the set of rules to regulating the procedure of communication over computer networks.
It's a set or rules and or applications for dealing with a given situation.
The set of rules that Buddhists follow is called the Five Precepts. These are moral guidelines that Buddhists strive to uphold in order to live a virtuous life. They include refraining from harming living beings, stealing, sexual misconduct, false speech, and consuming intoxicants.
The rules of a language is called its syntax.
Such a "set of rules" is called a "protocol". The protocol in this specific case is called HTTP.
a banana
protocol
Mayflower compact
communication protocol