Keeping track of your employer activities is the most important part of any business but at the same time, it is very difficult. Keeping record traditionally is almost impossible. We can use the help of computers to make this task simple and this process can be simplified using new technologies like RFID cards. The system keeping track of this important information has to be bulletproof. The software application has to keep working in every condition. In this detailed guide, we design a complete RFID card management system in a step by step manner. The process includes requirements specification, system design and implementation. Furthermore, the system is web-based for easy access. At the end, anyone with a good knowledge of a programming language will be able to make a working RFID card management system.