The Development of Accounting Information Systems (AIS) designed for Ezyuwiz microbusiness in this study needs to be done as a solution to some of the problems faced in the application of accounting information systems that are still less than optimal. This research is qualitative research using a descriptive study method based on the concept of system development framework for the application of system thinking (FAST) which consists of several phases, including scope definitions, problem analysis, needs analysis, and logical design. The data used in this study are primary data obtained through structured in-depth interviews and observation techniques. Based on the results of the study, several problems can be identified related to the implementation of the accounting system in Ezyuwiz micro business by using a framework of performance, information, economic, control, efficiency, services (PIECES). This study recommends the design of an integrated accounting information system development and improves services to meet the needs of micro business.

Keywords : Accounting Information System (AIS); Micro Business; Framework for the Application of System Thinking (FAST)