International Journal of Advances in Applied Computational Intelligence IJAACI 2833-5600 10.54216/IJAACI https://www.americaspg.com/journals/show/2066 2022 2022 Faculty of Information Systems and Computer Science, October 6th University, Cairo, Egypt Ahmed Abdel-Rahim EI EI-Douh Faculty of Information Systems and Computer Science, October 6th University, Cairo, Egypt Ayman H. Abdel Abdel-aziem Emerging technology, known as digital twin (DT) is surrounded by numerous promises and potentials to influence the future of industries and society as a whole. A DT is a system of systems that goes much beyond conventional computer simulations and analyses. It is the process of replicating all of the components, processes, and dynamics of a physical system into their corresponding digital counterparts. Both the physical and digital systems coexist in the same space, sharing all of the inputs and activities via the use of real-time data transfers and the exchange of information. The DT provides a platform for testing and assessing complicated systems, which is not achievable with conventional simulations or modular assessments. This is one of the many benefits offered by the DT. However, the development of this technology faces many challenges, such as the complexities in effective communication and data accumulation, the lack of data available to train machine learning (ML) models, the lack of processing power to support high-fidelity twins, the high need for collaboration between different fields of study, and the absence of standardized development methodologies and validation measures. Due to the fact that DTs are still in the early phases of development, little documentation exists. In this light, the purpose of this survey article is to make attempt to address the significant facets involved in the actualization of the technology. The most important enabling technologies, constraints, and opportunities associated with DTs are discussed. The article presents an in-depth analysis of the technology, includes a list of design aims and objectives, analyses research and commercial advances, details the applications of the technology, and identifies obstacles and constraints associated with design across many sectors. 2023 2023 47 53 10.54216/IJAACI.040105 https://www.americaspg.com/articleinfo/31/show/2066