Design And Implementation Of Attendance System On Fingerprint Identification

The paper begins with a brief introduction to biometric technology and fingerprint identification, based on which the paper, then, tries to design and realize the attendance management system.The following are the four major parts of this paper:In the first part, there is the needs analysis on the actual situation of the target unit. To do the needs analysis, we need to know the present personnel attendance situation of the target unit, including: its existing attendance management system, and its objectives, performance and special requirements on this system. After the analysis, the next step is to position the would-be attendance management system. The new system is to use the most popular fingerprint identification technology at present. The system divides into two parts: hardware and software. The hardware part is easy to realize, we can directly buy the fingerprint attendance machine in the market. Therefore, the major task is to design and realize the software.The second part realizes the module decomposition of the functions achieved through the attendance management system. Then, this part designs the cases and data of this system in detail by taking the following three levels as examples: the general staff, managers, and system back office staff. Most importantly, this step accomplishes the development of the database of the software, which is the core of the whole software. Besides, the part analyzes the E-R relation of the system. As a result, the structure of relational tables in the database can be defined; the use of the tables can be designed; the access, security and other areas of the database can also be realized.Thirdly, based on the attendance system software, this part accomplishes three subsystems concerning the three levels mentioned above: the general staff, managers, and system back office staff. The subsystems cover the current personnel attendance work of the target unit and choose the software renderings of the main operational processes. By connecting the fingerprint attendance machine, the computer and the attendance system software, this new system can be used to collect the fingerprint, preprocess it, compare it, generate attendance system and finally upload it to the database. In this way, the hardware and software may work together to serve the whole system.Finally, in accordance with the software testing of the "white box" and "black box" methods, the software developers, end users of the system are to complete the two-stage testing work. After testing, the attendance system is improved.