HERA-FFX - a Firefox Add-on for semi-automatic web accessibility evaluation

Universidad Politécnica de Madrid School of Computing José Luis Fuertes Ricardo González Emmanuelle Gutiérrez Loïc Martínez SIDAR Foundation International Cross-Disciplinary Conference on Web Accessibility Madrid, Spain April 20-21, 2009 Hera-FFX: a Firefox add-on for semi-automatic web accessibility evaluation

Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Features of web accessibility tools ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Features of web accessibility tools ,[object Object],Tool Type AE MF LP CV LP RA RP RG ST MS FL A-Checker online     Access. Check online   EvalAccess online    Foxability extension       Functional Access. Evaluator online    Hera online        Cynthia Says online   Firefox Access. Extension extension      TAW online online   TAW standalone application         Torquemada online   Total Validator online   WAVE online    WAVE Firefox toolbar extension      Web Access. Inspector application    Web Access. Self-evaluation report     

Features of web accessibility tools ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HERA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HERA-FFX ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HERA-FFX ,[object Object],Stores guideline definition, checkpoints and tests in an XML-based configuration file Firefox loads and interprets Web pages Builds a DOM representation of the web page. It is used by Hera-FFX to perform the accessibility evaluation Performs a preliminary automatic accessibility evaluation User performs a manual accessibility evaluation Accessibility report: XHTML + CSS document containing detailed information about the status of the evaluation Saved evaluation: this XML file can divide evaluations into several sessions

HERA-FFX ,[object Object],Evaluation Guideline Checkpoint Test Element DOM-Element

HERA-FFX ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HERA-FFX ,[object Object],verify  i / eval i = verify   i ≠ j (eval j ≠ fail  eval j ≠ partial) Condition Result  i / eval i = fail fail  i / eval i = partial   i ≠ j ( eval j ≠ fail ) partial  i / eval i = pass   i ≠ j (eval j = pass  eval j = N/A ) pass  i / eval i = N/A not applicable  i / eval i = unknown   i ≠ j ( eval j = unknown  eval j = N/A) unknown

HERA-FFX ,[object Object],Current web page Manual Evaluation Support Help on Checkpoints Instructions for Evaluation Modified Page View Code View Evaluation Results Result Summary Automated Preliminary Analysis Report Generation <hmtl lang="es"> <head> <title>HERA </title> </head> <body>

HERA-FFX ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],HERA-FFX User can choose the navigation style: ,[object Object],[object Object],[object Object],[object Object]

HERA-FFX ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HERA-FFX ,[object Object],[object Object],[object Object]

Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusions ,[object Object],           Hera-FFX Feature Hera Automated preliminary evaluation  Support for manual entry  Modification of page presentation  Annotated code view  Evaluation of local pages Evaluation or restricted-access pages Evaluation of rendered pages Report generation  Support for training  Multi-session capacity  Flexibility

Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Future Work ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Future Work ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HERA-FFX - a Firefox Add-on for semi-automatic web accessibility evaluation

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