This document discusses the methodology used to develop a mobile application to monitor high blood pressure using a smartwatch. It describes using a waterfall model of software development, which includes requirements gathering, design, development, testing, and distribution phases. It also provides details on the software and hardware used, including Android Studio, Xampp Server, and a F4 smartband. Database design is discussed through entity relationship diagrams and data flow diagrams are presented to illustrate the application's functions and flow of information.