The feasibility of providing a spelling corrector as a part of interactive user interfaces is demonstrated. The issues involved in using spelling correction in a user interface are examined, and a simple correction algorithm is described. The results of an experiment in which the corrector is incorporated into a heavily used interactive program are described. More than one quarter of the errors made by users during the experiment were corrected using the simple mechanisms presented here. From this we have concluded that there are considerable benefits and few obstacles to providing a spelling corrector in almost any interactive user interface.
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