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Paediatric burns are a major public health issue because of long‐term physical, psychological and social consequences and the high cost of treatment. The aim of this study was to design and evaluate a mobile‐based self‐management application for caregivers of children with severe burns. A participatory design technique was employed to develop the Burn application, which included three main phases: the determination of application requirements, the design and evaluation of the low‐fidelity prototype, and the design and evaluation of the high‐fidelity prototypes. In the first phase, application requirements were determined via validated paper questionnaires using the Delphi technique. In the second step, a low‐fidelity prototype was prepared using conceptual models and evaluated through a focus group with specialists. Seven specialists reviewed the application and evaluated how this prototype meets functional requirements and objectives. The third phase was performed in three stages. First, the high‐fidelity prototype was designed and developed by the JAVA programming language. Second, a cognitive walk‐through was carried out to show how users can interact with the mobile application and how it works. Third, this program was installed on the mobile phones of 28 caregivers of burned children, eight IT experts, and two general surgeries, and the prototype's usability was evaluated. In the present study, most caregivers of children with burns stated that after discharge, they face problems regarding infection control and wound care (4.07) and how to perform physical activity (4.12). User registration, educational materials, caregiver‐clinician communication, chat box, and appointment booking, safe login were the most important characteristic of the Burn application. Mean usability evaluation scores were in the range of 7.92 ± 0.238 to 8.10 ± 0.103, which is considered at a “good” level. From the Burn program design experience, it can be concluded that co‐design with health care specialists can significantly support and meet the specialists' and patients' needs and ensure the program's usefulness. In addition, application evaluation by users involved and not involved in the application design process can help enhance usability.

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Recent advances in digital health and increasing access to mobile health (mHealth) tools have led to more effective self-care. This study aimed to identify the minimum data set (MDS) and the requirements of a smartphone application (app) to support caregivers of children with severe burns. The study was carried out in three phases in a burn center in the north of Iran in 2022. In the first phase, a literature review was performed. In the second phase, interviews were conducted with 18 caregivers. The third phase was performed in two stages; first, an initial questionnaire was prepared in which the content validity ratio (CVR) and content validity index (CVI) were calculated. The final questionnaire included 71 data elements about the MDS and requirements and open-ended elements. Then, the data elements were surveyed by 25 burn experts using the Delphi technique. The minimum acceptable mean score for each item was 3.75. Out of the 71 elements in the first Delphi round, 51 were accepted. In the second Delphi round, 14 data elements were assessed. The most important elements for the MDS were a family relationship, total body surface area (TBSA), the primary cause of the burn, anatomical location, itch, pain, and infection. User registration, educational materials, caregiver-clinician communication, chat box, and appointment booking were the most highlighted functional requirements. Safe login was the most important element for the non-functional requirements. It is recommended that health managers and software designers use these functionalities in designing smartphone apps for caregivers of children with burns.

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