TELETEXT

Getestete Version: 3.0.4

The ‘TELETEXT app’ provides information on important news from politics, business and sports. Navigation is done via the page numbers known by the TV control or by a directory of categories. Currently, the TELETEXT services of SRF 1, SRF zwei, SRF info, RTS Un, RTS Deux, RSI LA 1 and RSI LA 2 are available.

Overall assessment of the app TELETEXT

Overall assessment: Poor accessibility.

Full name:TELETEXT App
Publisher:Admeira Broadcast AG
Publisher country:CH
Informationen about the app
Tested version:3.0.4
Operating system:iOS
Overall assessment normalised:0.45
– Share of accessibility profile:0.27 (50% out of 0.54)
– Share of feasibility grade:0.18 (50% out of 0.36)
Valuation information
The assessments and ratings relate exclusively to the version 3.0.4 of the app tested by us in the period from June to August 2023.

Accessibility profile

Tabelle Aspekte des Accessibility-Profil

AspectRating
Mobile operability3 out of 5 points
Keyboard operability3 out of 5 points
Voice control4 out of 5 points
Compatibility with user agents0 out of 5 points
Assistance with interactions1.5 out of 5 points
Consistency/predictability4 out of 5 points
Semantic structure1.5 out of 5 points
Comprehensibility2.5 out of 5 points
Display flexibility2.5 out of 5 points
Contrast and sensory characteristics5 out of 5 points
Non-text content graphics3 out of 5 points
Multimedia alternativesNo rating
Average value2.5 out of 5 points
The maximum achievable score is 5 points.

On a normalised scale, the score of the accessibility profile corresponds to 0.54 points. This value is weighted at 50% in the overall assessment.

  • Mobile operability: Usability and full display of content in portrait and landscape format; pointing actions and operability by device movement possible with conventional input methods.
  • Keyboard operability: Interactive elements can only be operated with a keyboard and are highlighted when focused on.
  • Voice control: Controls have an accessible label that corresponds exactly to the visual description/name.
  • Compatibility with user agents: User agents and assistive technologies are informed about changes in the state of the user interface as well as status messages.
  • Assistance with interactions: Interaction with forms; pointer entries can be cancelled or undone.
  • Consistency/predictability: Consistent navigation; context remains when focused in or during input.
  • Semantic structure: Content is labelled with structural elements such as headings, lists and labels that reflect the context of meaning.
  • Comprehensibility: Headings, form labels and link texts are understandable, correct language declaration is used.
  • Display flexibility: The presentation of the content can be adapted to the needs of the users: text size, control over animated elements and media.
  • Contrast and sensory characteristics: Adequate contrasts, no expressions such as ‘in the picture on the right’ or ‘click the red button’; information is not conveyed solely by colour.
  • Non-text content (graphics): Informative graphic elements have useful alternative texts.
  • Multimedia alternatives Multimedia content is compatible with at least one alternative sensory channel.
Value rangeMeaning
4.5 to 5 pointsGood accessibility
4 pointsConditional accessibility
3 to 3.5 pointsInsufficient accessibility
0 to 2.5 pointsPoor accessibility

Diagramm Aspekte Accessibility-Profil

Presentation of accessibility by type of limitation

Type of restrictionDegree of compliance
Motor skills62%
Sight58%
Hearing100%
Cognition62%

Feasibility of use scenarios

Grade
2.2
The highest grade is 6.

On a normalised scale, the grade corresponds to 0.36 points. This value is weighted at 50% in the overall assessment.

Key findings

The TELETEXT app is not accessible to screen reader users: only the five switches ‘Menu,’ ‘TV,’ ‘100,’ ‘Refresh’ and ‘Teletext’ can be operated with a screen reader. After opening the menu, it is not possible to access the sub-navigation points with a screen reader, keyboard or other alternative input devices. After activating the ‘100’ button, an input field opens to enter a three-digit number of pages, but screen reader users do not receive any feedback as to whether the entered page exists. After entering three digits, the page content loads automatically without any corresponding feedback. The text content is integrated exclusively as graphics without alternative text, thus the editorial content is not perceptible to screen reader users. The labelling of the switches is not meaningful either. The function of the switches ‘TV’ or ‘100’ only become apparent after trying them out. The use of the navigation is possible with a screen reader. The design of the app is based on the teletext function on TVs with high colour contrasts between text and background, so the overall contrast requirements are met.

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