The paper explores the role of big data and the Internet of Things (IoT) in the development of smart cities. It highlights how big data can provide valuable insights from a large volume of data collected through various sources, while IoT enables the integration of sensors, RFID, and Bluetooth in real-world environments. The authors discuss existing communication technologies and smart-based applications within the context of smart cities, focusing on how big data can fundamentally change urban populations at different levels. They propose a future business model for managing big data in smart cities and identify key research challenges in both business and technology. The study aims to serve as a benchmark for researchers and industries to advance the progress and development of smart cities in the context of big data.The paper explores the role of big data and the Internet of Things (IoT) in the development of smart cities. It highlights how big data can provide valuable insights from a large volume of data collected through various sources, while IoT enables the integration of sensors, RFID, and Bluetooth in real-world environments. The authors discuss existing communication technologies and smart-based applications within the context of smart cities, focusing on how big data can fundamentally change urban populations at different levels. They propose a future business model for managing big data in smart cities and identify key research challenges in both business and technology. The study aims to serve as a benchmark for researchers and industries to advance the progress and development of smart cities in the context of big data.