Protocol.
An algorithm, perhaps.
The Federal Rules of Civil Procedure.
The Federal Rules of Civil Procedure
Civil rules of procedure are the set of rules that govern the conduct of civil lawsuits in state and federal courts. These rules dictate how cases are initiated, managed, and resolved, including rules related to court filings, deadlines, evidence, and courtroom procedure. Adhering to these rules ensures fairness and efficiency in the legal process.
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 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
Mayflower compact
protocol
They are called 'protocols'.