This project details the development of a car hire system using the System Development Life Cycle (SDLC). It covers all the essential phases, starting with a thorough planning phase involving stakeholder consultation to define system requirements, technical details, and budget considerations. The requirement definition phase documents these gathered requirements, followed by the design phase, which includes database ERDs, network diagrams, and user interface designs. The development and implementation phase focuses on converting designs into real-life entities, involving web developers, database experts, and network engineers. The testing phase employs white box and black box testing techniques to ensure a flawless system. Finally, the deployment and maintenance phase involves deploying the CRM system, setting up the network, and launching the mobile application, followed by continuous monitoring and necessary upgrades. The project also includes a work breakdown structure (WBS) and use cases for both the CRM system and the MobCarHire application.