Kumar, PavanPavanKumarPal, AritraAritraPalSHANG-HSIEN HSIEH2023-10-242023-10-242023-01-01978303132514423662557https://scholars.lib.ntu.edu.tw/handle/123456789/636457The urban population is expected to increase from 56.61% (2021) to 68% (2050), hinting at an enormous population inflow in urban areas across the globe. As governments worldwide toward a sustainable way of life with sustainable development goals (SDG), today’s urban areas encounter challenges such as pollution, overcrowding, housing, traffic, and poor infrastructure. Smart Cities intends to identify an intelligent and efficient way of facing these challenges and reducing the complexity of challenges in urban areas. Although the implementation of Smart-cities worldwide is increasing with the support of policies, smart cities tend to mature in multiple directions at their own pace at different levels, attributed to the uniqueness of the cities in a particular geographical area. Consequently, tracking a trail of the smart city's holistic maturity advancement becomes crucial. Therefore, this paper reviews the existing smart-city maturity assessment models and proposes an outlook of a well-defined holistic smart-city maturity assessment model, which is expected to aid the implementation and efficient management of smart cities across the world.assessment methods | maturity frameworks | maturity models | Smart cityconference paper10.1007/978-3-031-32515-1_82-s2.0-85171544689https://api.elsevier.com/content/abstract/scopus_id/85171544689