“…We can conclude that the Qi value of all attributes is less than 0, and then their assumed quality of services has been labeled 'good enough.' Using these questionnaires, sub attributes could contribute significantly to the ranking of web portal services, as identified in Table VIII [27]. -1,03 -1,00 -1,00 -0,94 -0,92 -0,89 -0,88 -0,83 -0,83 -0,80 -0,80 -0,78 -0,78 -0,77 -0,73 -0,73 -0,73 -0,69 -0,68…”