Question

Who proposed the bifocal display?
a] Riccardo Mazza
b] Richard Williams
c] Robert Spence

Answer 1

Note that the taxonomy developed by Ying Leung and Apperley (Leung andApperley 1993a; Leung and Apperley1993b) discusses the relationships and differences between the bifocal and fish-eye concepts. Author/Copyright holder: Courtesy ofBob Spence.

Answer 2

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The correct answer is Option C) Robert Spence

The Bifocal Display is a data introduction system which permits a huge information space to be seen in general, while at the same time a portion is found in full detail. The detail is found with regards to the review, with congruity over the boundaries, as opposed to existing in a disjoint window.  

The static solution previously existed in the field of geology, an intelligently controlled change that fulfilled Farrand's prerequisite and, in addition, kept up a congruity of data space, was created in 1980 by Robert Spence (Imperial College London) and Mark Apperley (University of Waikato, New Zealand), who gave it the name 'Bifocal Display'.

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