This SpringerBrief discusses the origins emergence evolution and future of the Technology
Acceptance Model (TAM). TAM simple yet powerful has been extensively validated standing as a
leading scientific paradigm and a reliable model for explaining predicting and improving user
acceptance across a spectrum of technological deployments. Over more than three decades since
the introduction of TAM numerous extensions have emerged incorporating additional variables
and collectively referred to as TAM++. However perceived usefulness and perceived ease of use
remain the basic beliefs of the core TAM model. The introductory chapter Once upon a TAM
focuses on the challenging search for a user acceptance crystal ball showing that it is indeed
possible to consistently predict explain and improve user acceptance. Evolution of TAM traces
the model's growth and adaptability exploring the proliferation of selected TAM-related
behavioural intention models several integrated theoretical approaches the quest for other
behavioural intention antecedents and TAM's versatile applications in various contexts.
Revolution of TAM presents an in-depth systematic review encompassing a meta-analysis of
selected TAM reviews and meta-analyses and a narrative review of representative primary
studies providing a thorough and extensive understanding of the TAM universe. The epilogue
What will the Future of TAM be Like? provides insights into its dynamic future. This
SpringerBrief concludes with seven actionable principles serving as a strategic guide for
those aiming to customize the TAM++ body of knowledge for application-oriented studies within a
particular context. This comprehensive overview of TAM is a valuable source of information for
researchers practitioners and all interested readers especially those new to the field.
