COPD assessment test (CAT)is a questionnaire-based tool that is commonly used to assess the impact of chronic obstructive pulmonary disease (COPD)on a patient's health status and quality of life. It consists of eight questions that cover a range of symptoms, including cough, sputum production, breathlessness, chest tightness, and activity limitations. Each question on the CAT is scored on a scale from 0 to 5, with a maximum possible score of 40. A higher score indicates a greater degree of symptom severity and a poorer health status.

The system usability scale (SUS)is a standardized questionnaire that is used to evaluate the usability and user experience of a wide range of products, services, and systems. It produces a score between 0 and 100, with higher scores indicating better usability and user experience. The SUS has been validated and is widely used in both industry and research settings to evaluate the usability and user experience of a wide range of systems and products, including software applications, websites, and medical devices.

Participants will be required to rate their satisfaction with this software intervention, with a 10-point numeric rating scale (NRS) , where "1" represents "very dissatisfied" and "10" means "very satisfied".

The Six-Minute Walk Test is a commonly used measure of functional exercise

FEV1%predicted stands for "forced expiratory volume in one second predicted" and is a measure of lung function. It represents the maximum amount of air that a person can forcefully exhale from their lungs in one second. FEV1%predicted is expressed as a percentage of the predicted value for someone with the same characteristics who does not have lung disease.

FEV1/FVC is another measure of lung function, which represents the ratio of the amount of air that a person can forcefully exhale in one second (FEV1)to the total amount of air that they can exhale(forced vital capacity or FVC)over the course of a full exhalation. A low FEV1/FVC ratio indicates that the airways are obstructed or narrowed, which is a characteristic feature of COPD.

Health points are set based on consensus, obtained by operating actions on this software:

1. Login: participants' stay on the software lasts for over one minute, they will earn one health point, with a maximum of three health points per day.
2. Watch PLB health education video: For every minute participants stay on the video, they will earn one health point. The maximum score for a single viewing is equal to the length of the video.
3. Accept PLB exercise task: Earning one health point upon claiming an exercise task. For every minute spent on the exercise animated videos, patients earn one health point, with a maximum of up to ten health points.
4. Social forum: Participants can post an update in an internal forum, earning them one health point, with a maximum of three health points per day.
5. Reward health points of consecutive accepted tasks: an additional rewarded 50 points for continuously claiming exercises tasks for 9 consecutive times.