If the chemical basis of biomass usability can be identified, both feedstock and processing conditions can be improved.
Subsequent to its development and implementation in two hospitals, DataPall was tested among both trained and untrained hospital staff populations on the basis of its usability with comparison to existing paper records systems as well as on the speed at which users could perform basic database functions.
To determine a system's overall usability on the basis of a set of usability measures, one normally takes the mean value of each of the attributes that have been measured and checks whether these means are better than some previously specified minimum.
Following Hartson et al. [35], validity and thoroughness scores can be calculated on the basis of (a) the set of usability problems predicted with a particular UEM and (b) the set of real usability problems, that is, usability problems actually encountered by users outside the evaluation context.
The topics, which covered medical content, diabetes-related news items, and practical issues, were selected on the basis of our feasibility and usability testing [ 15].
The model was developed on the basis of a set of collected usability problems and our previous study on a conceptual framework for identifying usability impact factors.
Numerous empirical studies concern the identification of usability problems on the basis of observable user behaviour [5].
Følstad and Hornbæk [19], in their study of cooperative usability testing, found the usability issues identified on the basis of users' design feedback during interpretation phases to have equal impact to those identified on the basis of interaction data.
Although these methods provide a basis for creating new collaborative geovisualization tools, they do not fully support collaboration between groups of usability test subjects and software designers who are often distributed in space and usability measurements of geocollaborative tools running in a "real-world" distributed mode.
She writes: "… A sex object is defined on the basis of its looks, in terms of its usability for sexual pleasure, such that both the looking the quality of gaze, including its points of view and the definition according to use become eroticised as part of the sex itself.
