This document provides an overview of an SD5509 Prototyping & Scripting project that involves designing a web-based system called "i Est" to help people in Hong Kong, especially college students, search for and rent apartments more easily. The system aims to address common problems in the rental process like high costs, lack of facilities, and difficulty comparing options. It proposes designing i Est using technologies like RFID cards, virtual/augmented reality, and speech recognition to allow simulated apartment views and direct contact with owners. The document outlines the project objectives, target users, problems, design concepts, proposed technologies, and provides examples of use cases and scripted interactions within a prototype of the i Est interface.