Participants in this group tested the proposed platform over 6 months, and their feedback were collected 8 times.

The descriptive system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. The patient is asked to indicate his/her health state by ticking the box next to the most appropriate statement in each of the five dimensions.

The Zarit Caregiver Burden Interview (ZBI) was created by Zarit et al. in 1980 [21]. It is a self-administered instrument composed of 22 items scored on a Likert-type scale with 5 response options: never (0 points), rarely (1 point), sometimes (2 points), quite often (3 points), and almost always (4 points).

GAD-7 items reflect the DSM-IV criteria for GAD. Respondents are asked to rate each item for frequency of occurrence using a 4-point Likert scale (Not at all = 0, Several days = 1, More than half the days = 2, and Nearly every day = 3). All responses are summed to calculate the total GAD-7 score.

Created by John Brooke in 1986, the System Usability Scale (SUS) is a widely used tool for evaluating the usability of software, websites, and other interactive systems. Since then, it has become a standard method for assessing the overall user-friendliness of a product.The System Usability Scale is a Likert Scale which includes 10 questions which users of your website will answer.

Participants will rank each question from 1 to 5 based on how much they agree with the statement they are reading. 5 means they agree completely, 1 means they disagree vehemently.The average System Usability Scale score is 68. If your score is under 68, then there are probably serious problems with your website usability which you should address. If your score is above 68, then you can relax a little bit.