The Anti-Mac User Interface (Don Gentner and Jakob Nielsen)

Other text representations, such as Standard Generalized Markup Language (SGML), preserve the semantic meaning inherent in the text and have rules for converting the text and semantics into their appearance on the printed page. For example, a string of text may be labeled as a book title in SGML

The Anti-Mac User Interface (Don Gentner and Jakob Nielsen)
Layered Interaction Analysis of Direct Manipulation (Jakob Nielsen)

The principle of direct mappings between dialogue levels seems to provide a better way to conceptualize directness in interactive systems. As shown in Figure 4, the layered protocol model involves several transformations between different units of information and we would want those transformations

Layered Interaction Analysis of Direct Manipulation (Jakob Nielsen)
Assessing the Usability of a User Interface Standard

Despite the mainly positive attitudes towards the standard, there were also negative points mentioned during the interviews. Even though 67% of the developers felt that the standard made it easier for them to design screens and develop the associated software, 20% disagreed with that statement. As

Assessing the Usability of a User Interface Standard



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