Web-Based Data Management System also named as WDMS, which is an advanced middleware designed for ZKTeco PUSH SDK devices to collect data. Either work alone as a data collection middleware, work as a web-based function plug-in, would also be a nice choice. Under its user friendly UI, users can manage devices, employees and most of the setting just by several simple clicks. Besides that, some professional functions, such as real-time devices status monitoring and time log monitoring also available in this software. Thus, as a web-based function plug-in, WDMS can easily integrate with ZKTime.Net 3.0 to accomplish the multi-location time attendance function with just several steps.