The measure for perceived usefulness was developed specifically
for this project in line with the thinking of van der Heijden [39].
He noted that the original TAM scale was developed for utilitarian information systems and found that the measure for perceived
usefulness was problematic because of the focus on improved job
performance. Because of this, he developed a new set of items that
were more appropriate for the partly hedonic system investigated in
his research. These items have later on been used as an example of
how to develop a set of reflective items that all measure the same
idea within the perceived usefulness construct [33]. His items were
too specific to be used in this research, but were used as a model
when constructing a set of new reflective items, appropriate for an
augmented reality system with historical information.
The scales used to measure perceived ease of use a