Flexibility of visual languages for data manipulation
Yves Dennebouy · 1995
Quality of visual languages for data manipulation can be defined in terms of readability, direct manipulation, power of expression, adaptability, flexibility and level of abstraction. As some papers already defined methods to evaluate some of these qualities, flexibility is till now a fuzzy concept. This paper tries to quantify flexibility of such languages. For this purpose we define of a set of errors that can occur during the definition of a query. This grid of errors is applied to several tools or prototypes.