Information Technology Reference
In-Depth Information
number, take state level, etc.), resulting in a list of tests in accordance with the
selected parameters. It is then selected the exam request intended to be approved.
Held the reception phase, the examination is directed to the list of health professional
tasks that place. The provider can then start the registration at issue. If in any of the
previous phases it is requested a registration cancelation, this is registered as
completed and can be consulted later. After the registration phase, the test is
incorporated into the physician work list for the completion the report.
2.3
Technology Acceptance Methodology
The evaluation of a technology application is crucial to measure the satisfaction level of
its user. One of the most used models in this area is Technology Acceptance
Methodology. TAM is an adaptation of the Theory of Reasoned Action (TRA) to the
field of TI. The main purpose of TAM is to present an approach to assess and explain
the behavior of individuals in the face of information technology by providing and
justifying the acceptance or non-acceptance of a system by its users. This model aims to
provide a theoretical basis to map the impact of external variables towards people's
internal beliefs, attitudes and intentions [9]. TAM posits that perceived usefulness (PU)
and perceived ease of use (PEOU) determine an individual's intention to use a system
(BI) with intention to use serving as a mediator of actual system use (UB). The
construct PEOU represents the degree of ease associated with the use of the system and
the construct PU represents the degree to which an individual believes that using the
system will help him or her to attain gains in job performance [9,10]. Two extensions of
TAM have been proposed- TAM 2 and TAM 3. TAM 2 identify the determinants of PU
and TAM3 combine TAM 2 and the model of the determinants of PEOU [11].
3
Technology Acceptance Questionnaire
To realize the study it was conducted a confidential questionnaire (Table 1) consisting
of 81 questions based on the four constructs defined in TAM3. The questions were
designed based on scientific articles that have developed similar studies to evaluate
the acceptance of information technology in healthcare organizations, the system
features and clinical exper ts. To evaluate the results of this questionnaire was used
the Likert scale. This range was chosen because it enables the existence of two
positive and two negative values and also a point of neutrality. In addition, the fact of
the scale being short allows reduce the dispersion of the results, facilitating
subsequent analysis. The considered levels are: 1 - In complete disagreement; 2 - In
some level of disagreement; 3 - Under some level of agreement; 4 - Strongly
agreement; 5 - Full agreement.
Obtaining reliable results depends heavily on the awareness and willingness of
respondents when they complete the questionnaire. The target is that each respondent
carefully consider each of the issues and make your evaluation according to the scale.
However, very often respondents tend to evaluate a set of questions pertaining to a
particular group as a whole, giving the same answer to all the questions of that group.
To avoid this problem and increase the respondents awareness level when they are
completing the questionnaire were added three screening questions (e.g. One+ One).
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