Pillar III transparency: Accessibility to visually impaired people with XBRL

Pillar III transparency: Accessibility to visually

impaired people with XBRL

Javi MoraXBRL SpainManager

[email protected]

Ignacio BoixoXBRL Spain

International [email protected]

Version 0.5

19th XBRL International Conference

Paris, FRANCE. June 23-25, 2009

mailto:[email protected]

mailto:[email protected]

Pillar III: Transparency

“In order for market discipline of banking institutions to be effective, banks must be sufficiently transparent; that is banks must

provide a sufficient amount of accurate and timely information regarding their conditions and

operations to the public.”*

(*) Federal Reserve Bank of San Francisco, Economic Letterhttp://www.frbsf.org/publications/economics/letter/2003/el2003-22.html

Are visually impaired people part of that public?

W3C, WAI and Web Accessibility

Conclusions and Links

Web Accessibility in XBRL viewers

WCAG and section 508

Discussion Points


Spanish National Organization for the Blind

EXAMPLE: Open source viewer in use in the Securities and Exchange Commission (SEC) of U.S.A.

+

PURPOSETo gather information about the accessibility of XBRL reports available at the U.S. Securities and Exchange Commission website.

Purpose and Scope of Research Study

SCOPE"Interactive Financial Report Viewer" available on the U.S. Securities and Exchange Commission website.

Screen Magnifier ZoomText 9.1

TOOL

A screen magnifier is a software that presents enlarged screen content.

Screen Reader JAWS 9.0

TOOL Software that identify and interpret what is being displayed on the screen

Click here for sound

Screen Reader JAWS 9.0

Let’s listen how the screen reader tool interpret aloud a data table of the Interactive Financial Report Viewer Webpage.

Click here for sound

Images have been labelled properly

All the images and graphic links have been labelled properly, which facilitates the work of the screen readers.

(Image attributes displayed with Web Accessibility Toolbar plug-in)

Hierarchical Structure Data

PROBLEM:- Blind people don’t have information about when a tree branch is expanded and when it is collapsed.

- They also will not distinguish branches that could be expanded.

SOLUTION:

- HTML Standards: Lists (<ol>..<li>..</li>..</ol>)

- To associate the symbols "+" and "-" to significant texts that the screen reader could verbalize.

Data tables- The definition of the main header cells is OK.- However, it is recommended to avoid the use of tables for formatting purposes, for example, bold subheadings like “Accumulated Other Comprehensive Income”.

Section headers and Low vision users

SECTION HEADERS

It would be very useful to use a header section in the title that precedes a table of financial data, and another header section at the beginning of the panel "Viewing and Navigating Activity“.

LOW VISION USERS

For the low vision users, it is important for the website to have a good contrast between text and background. With the use of a screen magnifier and mouse, it is possible to view the XBRL financial reports.

<H1> … <H5>

Mouse MUST be optional

The panels have accessibility problems for screen readers.

The pop-up windows are not detected by the screen reader and could only be closed by using the mouse.





Discussion Points

“The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect”


Tim Berners-Lee W3C Director and inventor of the World Wide Web

The World Wide Web Consortium (W3C) develops interoperable technologies (specifications, guidelines, software, and tools) to lead the Web to its full potential. W3C is a forum for information, commerce, communication, and collective understanding.

www.w3.org


W3C

The Web Accessibility Initiative (WAI) works with organizations around the world to develop strategies, guidelines, and resources to help make the Web accessible to people with disabilities.

www.w3.org/WAI/

WAI


Web Accessibility means that people with disabilities can use the Web.

Web Accessibility means that people with disabilities can perceive, understand, navigate, and interact with the Web, and that they can contribute to the Web.

Web Accessibility also benefits others, including older people with changing abilities due to aging.

www.w3.org/WAI/intro/accessibility.php

Web Accessibility




Web Accessibility in XBRL instances

Software and Links

Discussion Points

Imagine a library with an access ramp…

A bumpy ramp = WAI-A It's possible to get in but with effort to get over the bumps

A smooth ramp = WAI-AAEasier to get in as the bumps

have been taken away

A traction ramp = WAI-AAAAssisted with getting in

Principles, Guidelines and Success Criteria

Web Content Accessibility Guidelines 2.0

Web Content Accessibility Guidelines (WCAG) 2.0 covers a wide range of recommendations for making Web content more accessible.

WCAG 1.0

W3C Recommendation

11th December 2008

W3C Recommendation

5th May 1999

WCAG 2.0

Web Content Accessibility Guidelines

Principles and Guidelines

Perceivable1

Information and user interface components must be presentable to users in ways they can perceive

Principle

1.1 Provide text alternatives for any non-text content

1.2 Provide alternatives for time-based media.

1.3 Create content that can be presented in different ways

1.4 Make it easier for users to see and hear content

Gui

delin

es

Web Content Accessibility Guidelines

Principles and Guidelines

Perceivable1

Information and user interface components… Principle

1.1 Provide text alternatives for any non-text content

Gui

delin

es Sufficient TechniquesSituation A: If a short description can serve the same purpose and present the same information as the non-text content:G94: Providing short text alternative for non-text content that serves the same purpose and presents the same information as

the non-text content using a short text alternative technique listed below Situation B: If a short description can not serve the same purpose and present the same information as the non-text content (e.g.

a chart or diagram).

1.1.1 Non-text Content:… Success Criteria

Advisory TechniquesLinking to textual information that provides comparable information (e.g. for a traffic Webcam, a municipality could provide a

link to the text traffic report).

Tech

niqu

es

Principles in WCAG 2.0

Operable2

User interface components and navigation must be operable.

Understandable 3

Information and the operation of user interface must be understandable.

Robust 4

Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.

SECTION 508 IS A U.S.A. LAW

Section 508 of the Rehabilitation Act (required in the United States) was amended in 1998 by the U.S. Congress to require that all Federal agencies make their electronic and information technology accessible to people with disabilities.

Section 508 was enacted to remove barriers in information technology, allowing new opportunities for people with disabilities, and to encourage the development of technologies that will help achieve this goal.

Milestones achieved by WCAG and Section 508

On-line accessibility validationWCAG 1.0 and Section 508

HiSoftware Cynthia Says WCAG 1.0 Section 508





Discussion Points

CONCLUSIONS

Data table structures: typical XBRL renderingCheck compliance with WAI accessibility guidelines

Avoid pop-up windows, which are not detected by the screen reader and can not be closed with the keyboard

Manual validation: An automatic validation is not enough

Easiest solution: PROPER use of HTML

Keyboard only: mouse must not be required

CONCLUSIONS

<img src=“image.jpg” alt=“SEC Home Page”>

<img src=“image.jpg” alt=“image”>

Easiest solution: PROPER use of HTML

Links

www.w3.org

www.w3.org/WAI/

www.w3.org/TR/WCAG20/

www.once.es/new/otras-webs/english

www.xbrl.es

viewerprototype1.com/viewer

www.section508.gov

http://www.w3.org/WAI/

http://www.w3.org/TR/WCAG20/

http://www.once.es/new/otras-webs/english

http://www.xbrl.es/

Questions ?Javi MoraXBRL SpainManager

[email protected]

Ignacio BoixoXBRL Spain

International [email protected]

Pillar III transparency: Accessibility to visually

impaired people with XBRL

Pillar III transparency: Accessibility to visually impaired people with XBRL

Documents

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