SBB Mobile

Getestete Version: 12.12.0

The SBB Mobile app allows users to plan trips by checking timetables, buying tickets and managing subscriptions, etc. The app also provides information about redirections and delays.

Overall assessment of the app SBB Mobile

Overall assessment: Good accessibility.

Full name:SBB Mobile
Publisher:Schweizerische Bundesbahnen SBB
Publisher country:CH
Informationen about the app
Tested version:12.12.0
Operating system:iOS
Overall assessment normalised:0.9
– Share of accessibility profile:0.45 (50% out of 0.9)
– Share of feasibility grade:0.45 (50% out of 0.9)
Valuation information
The assessments and ratings relate exclusively to the version 12.12.0 of the app tested by us in the period from June to August 2023.

Accessibility profile

Tabelle Aspekte des Accessibility-Profil

AspectRating
Mobile operability2.5 out of 5 points
Keyboard operability4 out of 5 points
Voice control5 out of 5 points
Compatibility with user agents4.5 out of 5 points
Assistance with interactions4 out of 5 points
Consistency/predictability5 out of 5 points
Semantic structure5 out of 5 points
Comprehensibility5 out of 5 points
Display flexibility5 out of 5 points
Contrast and sensory characteristics5 out of 5 points
Non-text content graphics5 out of 5 points
Multimedia alternativesNo rating
Average value4.5 out of 5 points
The maximum achievable score is 5 points.

On a normalised scale, the score of the accessibility profile corresponds to 0.9 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 skills79%
Sight92%
Hearing100%
Cognition93%

Feasibility of use scenarios

Grade
5.6
The highest grade is 6.

On a normalised scale, the grade corresponds to 0.93 points. The grade must not lead to an improvement in the overall assessment and is therefore cut to 0.9 points for the calculation. This value is weighted at 50% in the overall assessment.

Key findings

Connection enquiries and ticket purchases are possible without any major obstacle. Status and error messages are accessible to screen reader users. Adequate information is provided regarding all operations. Most elements are read out by the screen reader, but some items of information not read out or duplicated. The focus is not always set intuitively, which makes operation and orientation with a screen reader difficult. Usability with the keyboard is not always ideal either: for example, navigation within drop-down lists is restricted. When changing the departure time in the timetable query, neither date nor time can be focussed with the keyboard. The semantic labelling of most elements in the app is correct. As a result, operation with assistive technologies is for the most part accessible.

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