1. National Institute of Standards and Technology (NIST) Glossary:
Procedure: "A set of steps that can be followed to accomplish a task." This definition directly matches the "highly detailed instructions" described in the question.
Policy: "A set of rules that governs all aspects of how an organization conducts business..."
Standard: "A document
established by consensus and approved by a recognized body
that provides for common and repeated use
rules
guidelines or characteristics for activities or their results..."
Source: NIST Computer Security Resource Center (CSRC) Glossary
"Procedure
" "Policy
" "Standard" entries. (https://csrc.nist.gov/glossary)
2. Carnegie Mellon University (CMU) Information Security Office:
"A procedure is an established or official way of doing something. A procedure is a series of steps followed in a regular
definite order... Procedures provide the step-by-step instructions for how to implement policies and meet standards."
Source: Carnegie Mellon University
Information Security Office
"Policies
Standards
and Procedures." (https://www.cmu.edu/iso/governance/procedures.html)
3. NIST Special Publication 800-12 Rev. 1
An Introduction to Information Security:
This foundational document discusses the hierarchy of security documentation. It explains that procedures are "detailed
step-by-step instructions that are created to ensure that personnel can perform a given task."
Source: NIST SP 800-12 Rev. 1
Section 4.2.2 "Procedures
" Page 33.