The AOM mobile application supports the management of the entire lifecycle of system maintenance work from assignment to completion, including receiving, tracking, performing, updating progress and completing routine or ad hoc maintenance work. Users such as maintenance workers, team leaders, and technicians can view the work list by status, assign workers to perform, and view details of related equipment and materials used. The application allows updating progress, status, attaching images or notes after each step, and recording work completion by taking a selfie to confirm. AOM helps optimize resources, store complete maintenance history, improve quality and transparency of maintenance management. In addition, the application also supports periodic inspections, recording real-time equipment data, helping to detect abnormalities early and provide input data for performance analysis and incident assessment processes.