Digital Wallet System Development and Evaluation

The desire for a better user experience while engaging with mobile payment apps (apps) and electronic wallets (Digital Wallet Systems) is growing as the use of these apps grows. Human- Computer Interaction (HCI) is the study of how to develop, evaluate, and implement interactive computing systems for human use. Usability, or the quality of interactions with a product or system, is one component of HCI. This Research investigates how a Digital Wallet System may be designed to deliver a high level of usability by adhering to excellent HCI practices and utilizing a variety of usability evaluation methods. The research approach began with a literature review and the creation of a prototype, which was iteratively evaluated by a test group using the Thinking-aloud-protocol (TAP) and a combination of performance metrics and questionnaires. The results of the performance metrics, as well as the verbal data, improved with each cycle. According to the data, the most complex or difficult job for the test subjects to complete was Pay by manual entry. Except for the performance target of a proportion of mistakes below 5%, all goals were met for all tasks. To summarize, the test subjects had more difficulty comprehending the notion of the Digital Wallet System than navigating and performing tasks. The challenges stemmed from a lack of understanding of how money was held and transactions were carried out. We observed that the most essential difficulty when building this Digital Wallet System was to make new functionalities and concepts familiar to the user by tying them to recognizable principles.