EPUB Accessibility 1.2

Conformance and Discoverability Requirements for EPUB publications

Abstract

This specification specifies content conformance requirements for verifying the accessibility of EPUB® Publications. It also specifies accessibility metadata requirements for the discoverability of EPUB publications.

This document was published by the Publishing Maintenance Working Group as a Candidate Recommendation Draft using the Recommendation track.

Publication as a Candidate Recommendation does not imply endorsement by W3C and its Members. A Candidate Recommendation Draft integrates changes from the previous Candidate Recommendation that the Working Group intends to include in a subsequent Candidate Recommendation Snapshot.

This is a draft document and may be updated, replaced, or obsoleted by other documents at any time.

This community group will discuss the applications of web browsers as the computer for controlling robots (robotics, in other words). And it will be also intended to feedback knowledge obtained from this discussion to standardization activity about Web of Things.What kinds of values are contained in using a Web browser not only in drawing graphical user interface but also in controlling and manipulating robots, and what kinds of difficulties and problems are there in that case? To search their answers may become the driving force of this activity.As an example, there may be the following questions in the discussion:Is a case applying a Web browser as a simple controller of the robots which does not have UI such as screens or the pointing devices still meaningful? For example, connectivity with web services and interlocking operation between robots (Swarm Robotics via web) may be one of its values.Is it possible to relate a graphical user interface of HTML to interactive and physical user interface of the robots? Is it meaningful? As an example, a relation between a physical push button and 'input' type="button" element in the HTML may deserve considering.Are cases using relatively low-level interface used in many robots such as PWM of the motor, digital or analog signal interfaces, I2C, SPI, UART and GPIOs by the application on the web browsers meaningful?Is real-time computing at the same level as RTOS feasible on the web browser-based general-purpose computing environments?An initial related activity is the Mozilla Factory Open Hardware Project.Furthermore, this group may publish specifications based on those knowledge such as webGPIO, webI2C API and so on.

The Semantic Sensor Network (SSN) ontology is an ontology for describing sensors and their observations, the involved procedures, the studied features of interest, the samples used to do so, and the observed properties, as well as actuators. SSN follows a horizontal and vertical modularization architecture by including a lightweight but self-contained core ontology called SOSA (Sensor, Observation, Sample, and Actuator) for its elementary classes and properties. With their different scope and different degrees of axiomatization, SSN and SOSA are able to support a wide range of applications and use cases, including satellite imagery, large-scale scientific monitoring, industrial and household infrastructures, social sensing, citizen science, observation-driven ontology engineering, and the Web of Things. Both ontologies are described below, and examples of their usage are given.

The Thing Description (TD) ontology is an RDF axiomatization of the TD information model, one of the building blocks of the Web of Things (WoT). Besides providing an alternative to the standard JSON representation format for TD documents, the TD ontology can also be used to process contextual information on Things and for alignments with other WoT-related ontologies.

VSSo derives from the automotive standard VSS, and follows the SSNpattern for representing observations and actuations. VSSo defines car components, sensors, signals, etc.

Decentralised Identifiers are a mean to identify anything on the Internet. In the DPP case suitable to identify products, organisations, machines and also humans.

A JSON-based Serialization for Linked Data. A format that is often used to encode Verifiable Credentials.

A rights language vocabulary to express access rights to e.g. product information, organisational credentials or services