ISO 14915-1 pdf download – Software ergonomics for multimedia user interfaces 一 Part 1: Design principles and framework

ISO 14915-1 pdf download – Software ergonomics for multimedia user interfaces 一 Part 1: Design principles and framework.
3 Terms and definitions
For the purposes of this part of ISO 14915. the following terms and delinitions apply. For additional definitions, see the other parts of ISO 14915. A precise definition of media types is provided in ISO 14915-3.
content
information to be communicated by means of a multimedia application from the originator to the user according to certain communication goals
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dynamic media
media in which Itie presentation to the user changes according to time
EXAMPLE These include video, njsic, animation.
3.3
medIum, sing.
medIa, p1.
different specific forms of presenting Information to the human user
EXAMPLE These include text, video. graphics, animation, audio
3.4
metaphor
concepts already familiar to the user employed by the application to aid the users understanding and prediction of the applications behaviour
3.5
multimedia
combinations of static and/or dynamic media which can be interactively controlled and simultaneously presented in an application
EXAMPLE These include combnabcns of text arid video, or audio and animation.
3.6
navigation
user’s movement in and between media objects or presentation segments (see ISO 14915-2) in order to find an obect, a particular topic, or a specific piece of information
3.7
static media
media in which the presentation to the user does not change over time
EXAMPLE These include text and piclure$
4 Application of ISO 14915
4.1 Intended user groups
The following groups are the intended users of ISO 14915:
— user interface arid multimedia designers who will apply ISO 14915 during the development process;
— evaluators responsible for quality assurance who will ensure that products meet the recommendations of
ISO 14915;
— potential buyers. in selecting appropriately designed multimedia products;
— designers of multimedia development tools to be used by user interface and multimedia developers.
5.2.4 SuitabilIty tot the communication goal
A primary purpose of multimedia applications is to convey information from an Information provider to a recipient A multimedia application is suitable for the communication goal It it Is designed to match
— the goals of the provider(s) of the information to be conveyed, and at the same time;
— the goal or task of the users or recipients of this information.
In order to achieve this, the provicfe or designer of the information should define the intended goal of the communication and design the multimedia application accorngly. The application should also be designed with respect to the goals of the recipient, their tasks and information needs
Overall intended goals on the part of the provider could be to teach, inform or entertain users. Specific goals could be to summarize, explain, present, convince, justify, impress or motivate in a multimedia communication. Users’ needs could include learning requirements. information needed icr performing tasks, or engaging design features
EXAMPLE 1 Summanzation can be enhanced by uswig designed images (degranie).
EXAMPLE 2 Corwinng or jistifying arguments are shown using rerkaidant or salient media in order to emphasize key ItemS in
a message.
5.2.5 SuitabIlity for perception and understanding
5.2.5.1 General
A multimedia application is suitable for perception and understancng If It is designed such that the Information to be conveyed can be easily perceived and understood, This is particularty important for multimedia applications as the presentation can be complex arid volatile, and several media can be presented simultaneously. To laciitate the intended perception, the following characteristics described in ISO 9241-12 should be observed for each of the mersia involved
a) Detectability
EXAMPI.E A sufficient contrast between the bediground of a screen and a set of navigation buttons is used so that the user can easily detect them.
b) Discnmmability
EXAMPtE In a descrtion 04 a stl Image. e is used ever a music bacigroiid. The vO.De is loud and clear enough to be discriminated froni other sounds.
C) Clarity
EXAMPlE In a graphical anenation of an engwie, the different paris are shown in different coloLws In Order to tacilitale the user’s perception 04 the parts relevant ks the current task.
d) Legibility
EXAMPlE An animated text banner moves at a speed which enables the user to read the taxi easily.
e) Consistency
EXAMPlE The controls for playing or stopping a presentation are designed in the same manner for different mec5a such as auo video or a graphical animation.