Add compliance with W3C QA Framework: Specification Guidelines

.gitignore

@@ -28,3 +28,9 @@ internal/tools/bin
 # Node.js files for tools (e.g. markdown-toc)
 node_modules/
 package-lock.json
+
+# Pytest cache
+__pycache__
+
+# JSON files generated by the specification parser
+*.json

.markdownlint.yaml

@@ -12,3 +12,5 @@ ol-prefix:
   style: ordered
 no-inline-html: false
 fenced-code-language: false
+header-increment: false
+blanks-around-lists: false

.vscode/settings.json

@@ -8,6 +8,7 @@
         "MD029": {"style": "ordered"},
         "MD033": false,
         "MD040": false,
+        "MD001": false,
     },
     "yaml.schemas": {
         "https://raw.githubusercontent.com/open-telemetry/build-tools/v0.7.0/semantic-conventions/semconv.schema.json": [

README.md

@@ -24,6 +24,7 @@ Technical committee holds regular meetings, notes are held
 ## Table of Contents
 
 - [Overview](specification/overview.md)
+- [Conformance Clause](conformance_clause.md)
 - [Glossary](specification/glossary.md)
 - [Versioning and stability for OpenTelemetry clients](specification/versioning-and-stability.md)
 - [Library Guidelines](specification/library-guidelines.md)

conformance_clause.md

@@ -0,0 +1,199 @@
+# Conformance Clause
+
+Conformance to OpenTelemetry is defined in this conformance clause. This
+conformance clause follows the
+[W3C Recommendation QA Framework: Specification Guidelines](https://www.w3.org/TR/2005/REC-qaframe-spec-20050817/).
+
+## Parts of the specification
+
+### Normative Parts
+
+_Normative Parts_ of this specification define its strict requirements. They
+are identified by a level 5 header followed by the word *Requirement* or the
+words *Conditional Requirement* and an identifying number.
+
+#### Requirement Normative Parts
+
+A _Requirement Normative Part_ defines a certain requirement that the
+implementations of OpenTelemetry are to implement. The mandatoriness of the
+requirement is defined by the RFC 2119 word that appears in the Requirement
+Normative Part.
+
+Here is an example of a Requirement Normative Part:
+
+##### Requirement 4
+
+> The trace **MUST** have an identifier.
+
+This is the markdown code for the previous example:
+
+```
+##### Requirement 4:
+
+> The trace **MUST** have an identifier.
+```
+
+The header for a requirement must be of level 5 (a header that begins with 5 `#`
+characters). The requirement number must be unique per file and continuously increasing
+from 1.
+
+A blank line must follow the header.
+
+The `>` character serves as a delimiter for the Normative Part, it must be the
+first character of any line that makes the content of the Normative Part.
+Multiple lines can start with this character:
+
+```
+##### Requirement 6:
+
+> The span **MAY** include
+> additional metadata.
+```
+
+#### Conditional Requirement Normative Parts
+
+A _Conditional Requirement Normative Part_ has the same characteristics of a
+Requirement Normative Part but it is preceded by a _condition_. Some
+requirements of this specification are conditional, they are valid only for
+certain implementations if a certain condition is fulfilled by such
+implementation. For example, a requirement that refers to certain software
+pattern would be valid for some implementations that can follow that pattern
+and not be valid for other implementations that can not. The implementations
+that can follow that pattern can be subjected to additional requirements,
+defined in Conditional Requirement Normative parts.
+
+Here is an example of a Conditional Requirement Normative Part:
+
+##### Condition 1
+
+> The API does not operate directly on the `Context`.
+>
+> ##### Conditional Requirement 1.1
+>
+> > The API **MUST** provide an `extract` function to extract the `Baggage`
+> > from a `Context` instance.
+
+The header for a condition must be of level 5. The condition number must be
+unique per file and continuously increasing from 1. The conditional requirement
+number must be composed of the containing condition number a period and an
+unique number continuously increasing from 1. As more condition or requirement
+levels are nested more numbers separated by periods are correspondingly to be
+added to the condition or conditional requirement numbers.
+
+A blank line must follow the header.
+
+The `>` character indicates the scope of the condition, it must be the first
+character of any line that makes the content of the condition. Any requirement
+inside the scope of the condition is valid only if the condition is true for
+the particular implementation. Other conditions may also be inside the scope of
+another condition. A contained condition inside the scope of a containing
+condition is to be evaluated only if the containing condition is true for the
+particular implementation.
+
+This is the markdown code for the previous example:
+
+```
+##### Condition 1:
+
+> The API does not operate directly on the `Context`.
+>
+> ##### Conditional Requirement 1.1:
+>
+> > The API **MUST** provide an `extract` function to extract the `Baggage`
+> > from a `Context` instance.
+```
+
+### Informative Parts
+
+Any other part of a file that includes at least one Requirement Normative Part
+is considered an _Informative Part_. An Informative Part does not specify any
+requirement, it is only intended to help the reader of the specification
+understand it better. There is no requirement for the writing of an Informative
+Part, any text, table, image, diagram, etc. can be included.
+
+Regardless of the language used in an informative part, it is never to be
+considered normative in any way. Only requirements defined in a Requirement
+Normative Part have any mandatoriness for the implementations of OpenTelemetry.
+
+### Normative Language
+
+Every one of the Requirement Normative Parts must include one and only one of
+the following words:
+
+- MUST
+- REQUIRED
+- SHALL
+- SHALL NOT
+- MUST NOT:w
+- SHOULD
+- RECOMMENDED
+- SHOULD NOT
+- NOT RECOMMENDED
+- MAY
+- OPTIONAL
+
+These words are to be interpreted as they are defined in
+[RFC 2119](https://datatracker.ietf.org/doc/html/rfc2119). These two kinds of
+Normative Parts (Requirement Normative Parts and Conditional Requirement
+Normative Parts) are explained with more detail next.
+
+## OpenTelemetry Conformance Model
+
+### Products
+
+The OpenTelemetry Conformance Model defines conformance for the following
+_products_:
+
+- API: the interfaces that the application and library developers use directly
+- SDK: the implementation of the interfaces in the API
+- Semantic Conventions: FIXME: add a brief description of Semantic Conventions
+- OTLP: FIXME: Add a brief description of OTLP
+
+### Conformance Designations
+
+There is only one conformance designation: _Full_. This conformance designation
+applies to all the products listed [here](#products). This conformance
+designation requires that all requirements are implemented accordingly to their
+mandatoriness. Some requirements are conditional, these requirements are to be
+implemented accordingly to their mandatoriness if the corresponding
+condition applies to the corresponding implementation.
+
+#### Profiles
+
+OpenTelemetry does not address nor define profiles to subdivide its technology.
+
+#### Modules
+
+OpenTelemetry does not address nor define modules to subdivide its technology.
+
+#### Levels
+
+OpenTelemetry does not address nor define levels to subdivide its technology.
+
+#### Deprecated Features
+
+OpenTelemetry does not have any deprecated features. OpenTelemetry may have
+deprecated features in the future.
+
+#### Obsolete Features
+
+OpenTelemetry does not have any obsolete features. OpenTelemetry may have
+obsolete features in the future.
+
+#### Optional Features
+
+OpenTelemetry does not have any optional features. OpenTelemetry may have
+optional features in the future.
+
+#### Extensibility
+
+OpenTelemetry is not extensible.
+
+#### Conformance Claims
+
+OpenTelemetry conformance claims must include the following:
+
+- Specification Name: OpenTelemetry
+- Specification Version: OpenTelemetry Version Number
+- Degree of Conformance: Full
+- Date: Date when the claim is made