General Definitions & Standards

Acronyms and Abbreviations

Acronym / Abbreviation	Definition
CEO	Chief Executive Officer
CFO	Chief Financial Officer
CSO	Chief Sales Officer
CTO	Chief Technical Officer
HOD	Head of Department
HOP	Head of Procurement
DHR	Director Human Resources
DOD	Director of Development
DQM	Director of Quality Management
HOM	Head of Marketing
HOCS	Head of Customer Service
TBD	To be defined / To be decided / To be discussed
QM	Quality Management
QMR	Quality Management Representative
RCM	Risk Control Matrix
EC	Executive Committee
ECM	Executive Committee Member
BOD	Board of Director
CoC	Code of Conduct
CLA	(Individual) Contributor License Agreement
NDA	Non-disclosure agreement
TOS	(General) Terms of Service
TOU	(General) Terms of Use
A	Actual (often used in combination with financial figures)
B	Budget
PY	Previous year (sometimes used to define any previous year)
FC	Forecast
FTE	Full Time Equivalent
EBITDA	Earnings before interest, taxes, depreciation and amortization
EBIT	Earnings before interest and taxes
EBT	Earnings before taxes

Key words to indicate requirement levels

Copyright Notice

Abstract

In many standards track documents several words are used to signify the requirements in the specification. These words are often capitalized. This document defines these words as they should be interpreted in IETF documents. Authors who follow these guidelines should incorporate this phrase near the beginning of their document:

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119.

Note that the force of these words is modified by the requirement level of the document in which they are used.

MUST

This word, or the terms "REQUIRED" or "SHALL", mean that the definition is an absolute requirement of the specification.

MUST NOT

This phrase, or the phrase "SHALL NOT", mean that the definition is an absolute prohibition of the specification.

SHOULD

This word, or the adjective "RECOMMENDED", mean that there may exist valid reasons in particular circumstances to ignore a particular item, but the full implications must be understood and carefully weighed before choosing a different course.

SHOULD NOT

This phrase, or the phrase "NOT RECOMMENDED" mean that there may exist valid reasons in particular circumstances when the particular behavior is acceptable or even useful, but the full implications should be understood and the case carefully weighed before implementing any behavior described with this label.

This word, or the adjective "OPTIONAL", mean that an item is truly optional. One vendor may choose to include the item because a particular marketplace requires it or because the vendor feels that it enhances the product while another vendor may omit the same item. An implementation which does not include a particular option MUST be prepared to interoperate with another implementation which does include the option, though perhaps with reduced functionality. In the same vein an implementation which does include a particular option MUST be prepared to interoperate with another implementation which does not include the option (except, of course, for the feature the option provides.)

Guidance in the use of these Imperatives

Imperatives of the type defined in this memo must be used with care and sparingly. In particular, they MUST only be used where it is actually required for interoperation or to limit behavior which has potential for causing harm (e.g., limiting retransmissions) For example, they must not be used to try to impose a particular method on implementors where the method is not required for interoperability.

Security Considerations

These terms are frequently used to specify behavior with security implications. The effects on security of not implementing a MUST or SHOULD, or doing something the specification says MUST NOT or SHOULD NOT be done may be very subtle. Document authors should take the time to elaborate the security implications of not following recommendations or requirements as most implementors will not have had the benefit of the experience and discussion that produced the specification.

Acknowledgments

The definitions of these terms are an amalgam of definitions taken from a number of RFCs. In addition, suggestions have been incorporated from a number of people including Robert Ullmann, Thomas Narten, Neal McBurnett, and Robert Elz.

Author's Address Scott Bradner Harvard University 1350 Mass. Ave. Cambridge MA 02138 Phone: - +1 617 495 3864 Email: sob@harvard.edu

Full Copyright Statement

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Date Time Format

The date time format in all documents must follow the ISO 8601 standardization: YYYY-MM-DD or YYYY-MM-DD HH:MM:SS (sometimes written as YYYY-MM-DD h:i:s).

2022-01-01 - Version 1.0

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