Web of Things (WoT) Thing Description

General information about the Web of Things can be found on https://www.w3.org/WoT/.

Each commit here will sync it to the master, which will expose the content to http://w3c.github.io/wot-thing-description/.

For the draft TD specification for TAG review, please access this URL.

To make contributions, please provide pull-requests to the appropriate files, keeping in mind that some files, most notably index.html and testing/report.html, as well as most files under visualization, are autogenerated and should not be modified directly. See github help for information on how to create a pull request.

Thing Description Family

This repository covers the W3C Web of Things Thing Description family of specifications.

Thing Description (Maintenance)

Working Draft - Latest draft of the Thing Description Maintenance version
branch - Points to the master branch of this repo
issues - Points to the issues related to the Thing Description Maintenance version
feature log - Log of the new features of the Thing Description Maintenance version compared to Thing Description 1.0

Thing Description 1.0

REC - Official recommendation version of the Thing Description 1.0
branch - Branch that correspond to the Thing Description 1.0 files
errata - Errata for version 1.0

Specification Rendering

Part of the document is automatically rendered using the STTL.js RDF template engine and Node.js. Any change to the document must be performed on the main HTML template index.template.html, and not on index.html. To render index.html, along with SVG figures, run:

npm run render

You can also invoke the rendering script directly:

./render.sh

Requirements: Java 8, Node.js 6, GraphViz.

The script will first download and install some dependencies (triple store, Node.js dependencies) and then execute the JS script render.js. The latter should always be execute within render.sh since it requires some env variables to be set first.

For Windows users, the script should be run in a Cygwin shell. Git package from Cygwin distribution had better not be used. Alternative Git client distribution such as Git for Windows works better when you encounter an issue building the document using Cygwin.

Implementation Report

To generate the implementation report, including a list of normative assertions, issue the following command:

npm run assertions

A draft implementation report will be generated and output to testing/report.html which will use relative links back up to index.html. The input to this process is index.html (not index.html.template) so make sure to execute npm run render first.

For this to work, the assertions need to be marked up as in the following examples and follow RFC2119 conventions:

<span class="rfc2119-assertion" id="additional-vocabularies">
  A JSON TD MAY contain additional optional vocabularies that are 
  not in the Thing Description core model.
</span>
<span class="rfc2119-assertion" id="additional-vocabularies-prefix">
  Terms from additional optional vocabularies used in a JSON-TD MUST 
  carry a prefix for identification within the key name
  (e.g., <tt>"http:header"</tt>).
</span>

The assertions must be marked up as follows:

Enclose each assertion in a span.
Mark the span with unique id. It is recommended that the section id be followed by a short unique name for the specific assertion.
Mark the span with a 'class' attribute set to rfc2119-assertion.
Include one (and only one) instance of the RFC2119 keywords (MUST, MAY, etc.) in capitals. This markup does not change the rendering; it just clearly indicates and uniquely names the assertion.

It is strongly recommended to make assertions independent of context. In particular, avoid using pronouns or relational expressions referring to previous statements not included in the assertion. Such references can always be replaced with their antecendent ("dereferenced") without changing the meaning, and this is less ambigious anyway. For example, instead of using "this serialization", use "a JSON-TD serialization".

Also, assertions should ideally only constrain one item. Multiple constraints should be stated in separate sentences.

Note that the above rendering process also assigns each table entry a unique ID and these are also listed in the table included in the implementation report.

Other data, e.g., data from test results, test specifications, and implementation descriptions, are also needed to complete the implementation report. See testing/README.md for details.

The generation of the implementation report also generates a CSS file testing/atrisk.css that highlights at-risk items in the generated index.html. The at-risk items are listed in testing/inputs/atrisk.csv. If at-risk items are updated, to update the at-risk highlighting the implementation report needs to be generated first, and then the rendering.

License

mlagally/wot-thing-description

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