The UTAUT comprises a combination of components adopted from the TRA, the TAM, the TPB, the MPCU
, IDT, and SCT.
UTAUT model had developed by combining all 32 concepts introduced by the eight different models (TRA, TPB, TAM, C-TAM-TPB, MM, MPCU
, IDT, SCT) of innovation technology acceptance and taking into account the core 4 factors of gender, age, experience, and voluntariness .
There are three constructs that capture the concept of efforts expectancy which are perceived ease of use (TAM/TAM2), complexity (MPCU) and ease of use (IDT) (Venkatesh et al, 2003:450).
This construct is related to TRA, TAM, TPB and C-TAM-TPM and it can also be traced to MPCU and DOI as social factors.
Effort expectancy (UTAUT), or perceived ease of use (TAM) (IDT) (TPB), complexity (MPCU), Self-efficacy (SCT) and other constructs related to effort expectancy support the notion is a determinant of individual intention to use and accept technology in question.
Infrastructure on which WBT technology will be built, accepted, and used is considered the facilitating conditions in Model of PC Utilization (MPCU), in other words the objective factors in the environment that make an act easy to accomplish.
Mounted outside of the vehicle, either in a control room or a field pack, the MPCU is the main interface between the systems and the operator.
The PSU takes the mission data from the MPCU and translates the data into vehicle and payload command signals.
In information technology or the communication research domain, many revised or expanded models are based on classic acceptance models, such as TRA, TPB, TAM, Motivational Model (MM), Combined TAM and TPB (C-TAM-TPB), and the Model of PC Utilization (MPCU).
Performance expectancy is 'the degree of a personal belief that a user believes a system or service will improve its work performance.' This concept is also known as perceived usefulness (TAM, TAM2, C-TAM-TPB), extrinsic motivation (MM), and job-fit (MPCU).
This model combines components across the eight models which include the Theory of Reasoned Action (TRA; Fishbein & Ajzen, 1975), the Technology Acceptance Model (TAM; Davis, 1989), the Motivational Model (MM; Davis, Bagozzi, & Warshaw, 1992), the Theory of Planned Behavior (TPB; Ajzen, 1991), the Combined TAM and TPB (C-TAM-TPB; Taylor & Todd, 1995), the Model of PC Utilization (MPCU
; Thompson, Higgins, & Howell, 1991), the Innovation Diffusion Theory (IDT; Moore & Benbasat, 1991; Rogers, 1995), and the Social Cognitive Theory (SCT; Bandura, 1986).