This part of ISO 14915 gives recommendations for, and guidance on, the design, selection and combination of interactive user interfaces that integrate and synchronize different media. It addresses user interfaces for applications that incorporate, integrate and synchronize different media. This includes static media such as text, graphics, images; and dynamic media such as audio, animation, video or media related to other sensory modalities. Detailed design issues within a single medium (e.g. the graphical design of an animation sequence) are only addressed as far as they imply ergonomic consequences for the user. This part of ISO 14915 applies to --presentational techniques for computer-based multimedia applications in general, including stand-alone and networked applications when the prime goal is to support the user’s work task or provision of information, --the design of the software user interface, and --training and tutorial multimedia insofar as its recommendations bear on effective delivery of information. This part of ISO 14915 does not deal with pedagogical design issues for tutorial applications and does not address hardware issues, such as input or output devices. The recommendations in this part do not specifically address applications whose primary purpose is entertainment, such as games. The focus of this part of ISO 14915 is on multimedia presentation issues; multimodal input which uses different media, such as speech, in combination with pointing for entering information is not considered in the recommendations provided.