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Informationsteknologi Interoperabilitet med tilgængelighedsteknologi (AT) Del 4: Tilgængeligheds-API for grafiske miljøer i Linux/UNIX - PDF
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Sandra Rebecca Andresen
1 DS-information DS/ISO/IEC TR : udgave Informationsteknologi Interoperabilitet med tilgængelighedsteknologi (AT) Del 4: Tilgængeligheds-API for grafiske miljøer i Linux/UNIX Information technology Interoperability with assistive technology (AT) Part 4: Linux/UNIX graphical environments accessibility API
2 DS/ISO/IEC TR :2015 København DS projekt: M ICS: ; Første del af denne publikations betegnelse er: DS/ISO/IEC TR, hvilket betyder, at det er en international teknisk rapport, der har status som DS-information. Denne publikations overensstemmelse er: IDT med: ISO/IEC TR :2015. DS-publikationen er på engelsk. DS-publikationstyper Dansk Standard udgiver forskellige publikationstyper. Typen på denne publikation fremgår af forsiden. Der kan være tale om: Dansk standard standard, der er udarbejdet på nationalt niveau, eller som er baseret på et andet lands nationale standard, eller standard, der er udarbejdet på internationalt og/eller europæisk niveau, og som har fået status som dansk standard DS-information publikation, der er udarbejdet på nationalt niveau, og som ikke har opnået status som standard, eller publikation, der er udarbejdet på internationalt og/eller europæisk niveau, og som ikke har fået status som standard, fx en teknisk rapport, eller europæisk præstandard DS-håndbog samling af standarder, eventuelt suppleret med informativt materiale DS-hæfte publikation med informativt materiale Til disse publikationstyper kan endvidere udgives tillæg og rettelsesblade DS-publikationsform Publikationstyperne udgives i forskellig form som henholdsvis fuldtekstpublikation (publikationen er trykt i sin helhed) godkendelsesblad (publikationen leveres i kopi med et trykt DS-omslag) elektronisk (publikationen leveres på et elektronisk medie) DS-betegnelse Alle DS-publikationers betegnelse begynder med DS efterfulgt af et eller flere præfikser og et nr., fx DS 383, DS/EN 5414 osv. Hvis der efter nr. er angivet et A eller Cor, betyder det, enten at det er et tillæg eller et rettelsesblad til hovedstandarden, eller at det er indført i hovedstandarden. DS-betegnelse angives på forsiden. Overensstemmelse med anden publikation: Overensstemmelse kan enten være IDT, EQV, NEQ eller MOD IDT: Når publikationen er identisk med en given publikation. EQV: Når publikationen teknisk er i overensstemmelse med en given publikation, men præsentationen er ændret. NEQ: Når publikationen teknisk eller præsentationsmæssigt ikke er i overensstemmelse med en given standard, men udarbejdet på baggrund af denne. MOD: Når publikationen er modificeret i forhold til en given publikation.
3 TECHNICAL REPORT ISO/IEC TR First edition Information technology Interoperability with assistive technology (AT) Part 4: Linux/UNIX graphical environments accessibility API Technologies de l information Interopérabilité avec les technologies d assistance Partie 4: Accessibilité API des environnements graphiques linux/unix Reference number ISO/IEC TR :2015(E) ISO/IEC 2015
5 ISO/IEC TR :2015(E) Contents Page Foreword...iv Introduction...v 1 Scope Terms and definitions Overview General description Architecture ATK Aware Toolkits AT-SPI Aware Assistive Technologies Support apart from AT-SPI/ATK Using the API Overview User Interface elements Getting and setting focus Communication mechanisms How GNOME uses the ATK/AT-SPI accessibility Application Programming Interface Exposing User Interface Element Information Role, state(s), boundary, name, and description of the user interface element Current value and any minimum or maximum values, if the user interface element represents one of a range of values Text contents, text attributes, and the boundary of text rendered to the screen The location of the user interface element in relation to other user interface elements Exposing User Interface Element Actions Keyboard focus Events Changes in the user interface element value Changes in the name of the user interface element Changes in the description of the user interface element Changes in the boundary of the user interface element Programmatic modifications of states, properties, values, and text Design considerations Using AT-SPI/ATK Further information Testing Accessibility with Accerciser...22 Bibliography...23 ISO/IEC 2015 All rights reserved iii
6 ISO/IEC TR :2015(E) Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO s adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/IEC JTC 1, Information technology, Subcommittee SC 35, User interfaces. ISO/IEC consists of the following parts, under the general title Information technology Interoperability with Assistive Technology (AT): Part 1: Requirements and recommendations for interoperability Part 2: Windows accessibility application programming interface (API) [Technical Report] Part 3: IAccessible2 accessibility application programming interface (API) [Technical Report] Part 4: Linux/UNIX graphical environments accessibility API [Technical Report] Part 6: Java accessibility application programming interface (API) [Technical Report] iv ISO/IEC 2015 All rights reserved
7 ISO/IEC TR :2015(E) Introduction Assistive technology (AT) is specialized information technology (IT) hardware or software that is added to or incorporated within a system that increases accessibility for an individual. In other words, it is special purpose IT that interoperates with another IT product enabling a person with a disability to use the IT product. Interoperability involves the ability to add or replace Assistive Technology (AT) to existing components of Information Technology (IT) systems. Interoperability between AT and IT is best facilitated via the use of standardized, public interfaces for all IT components. This part of ISO/IEC describes the following. AT-SPI The Assistive Technology Service Provider Interface (AT-SPI) API, which can be used as a toolkit agnostic framework to support software to software IT-AT interoperability on Linux and UNIX graphical desktop environments. ATK The Accessibility Toolkit (ATK) library provides a set of interfaces in support of AT-SPI on the GUI application side. The interfaces are toolkit-independent implementations could be written for any widget set, such as GTK, Motif, or Qt. ISO/IEC 2015 All rights reserved v
9 TECHNICAL REPORT ISO/IEC TR :2015(E) Information technology Interoperability with assistive technology (AT) Part 4: Linux/UNIX graphical environments accessibility API 1 Scope This part of ISO/IEC provides an overview to the structure and terminology of the Linux/UNIX graphical environments accessibility API. It will provide the following: a description of the overall architecture and terminology of the API; further introductory explanations regarding the content and use of the API beyond those found in ISO/IEC :2011, Annex A; an overview of the main properties, including of user interface elements, of how to get and set focus, and of communication mechanisms in the API; a discussion of design considerations for the API (e.g. pointers to external sources of information on accessibility guidance related to using the API); information on extending the API (and where this is appropriate); an introduction to the programming interface of the API (including pointers to external sources of information). It will provide this information as an introduction to the Java API to assist the following: IT system level developers who create custom controls and/or interface to them; AT developers involved in programming hardware to software and software to software interactions. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 A11Y short form of accessibility or of accessible 2.2 accessible object part of the user interface (2.21) that is accessible by and exposes the Java accessibility API Note 1 to entry: An accessible object is represented by an object of the AccessibleContext Java class. ISO/IEC 2015 All rights reserved 1
DS-information DS/ISO/IEC TR 13066-6
DS-information DS/ISO/IEC TR 13066-6 1. udgave 2014-08-19 Informationsteknologi Interoperabilitet med tilgængelighedsteknologier (AT) Del 6: Programmeringsgrænseflade for tilgængelighed til Java-applikationer
Informationsteknologi Referencearkitektur for serviceorienteret arkitektur (SOA RA) Terminologi og begreber for SOA
Dansk standard DS/ISO/IEC 18384-1:2016 1. udgave 2016-06-01 Informationsteknologi Referencearkitektur for serviceorienteret arkitektur (SOA RA) Terminologi og begreber for SOA Information technology Reference