Rossi, EnricoPujadas, RoserVenters , Will2022-12-272022-12-272023-01-03978-0-9981331-6-4900c0b1b-aee2-4929-ba42-77eff4078c3ehttps://hdl.handle.net/10125/103318Modularity is a key concept in the research and practice of information systems. Yet, it has been variously interpreted. Synthesizing the literature, we inductively develop a two-by-two matrix encapsulating two dualities of modularity: architectural vs. governance dimensions, and bottom-up vs. top-down perspectives. This matrix groups the literatures into four archetypical approaches to modularity (Engineering, Ecosystem, Generative and Logical). We next illustrate these archetypes through a qualitative study of a large global telecommunications firm. Drawing upon archival data and interviews, we show how each of these four approaches to modularity become dominant at different times, but also how they overlap and coexist.10engAttribution-NonCommercial-NoDerivatives 4.0 InternationalDigital Innovation, Transformation, and Entrepreneurship5garchitectureecosystemsmodularitytelecommunicationstext10.24251/HICSS.2023.684