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tasks subject to the editor's point of view and the individual resources he is prepared
to assign to the creator for solving a certain task (for example consultation time,
access to scientific material, etc.). The maximizing of a degree of repository supply
with concepts is an editor's interest. It the end, the repository should reflect the
complete ontology of a given subject. The criterion regarding placing the concept in
the repository is decided by the editor on the basis of: concept complexity level,
graphical quality, language correctness, and others. Consequently, the possibility of
realizing the editor's interests is limited by his resources considering time in terms
of quantitative and calendar aspects and other informal preferences.
The creator's motivation function is formulated to obtain the maximum level of
meeting one's interests during choosing and solving the task, with given constraints
regarding time (of one's own and the editor's as well) and a way of grading the
resulting effects.
The creator's interests rely on individual preferences and can be described using
opposing groups of creators (similar to [ 52 ]). The first group is concerned mainly
with achieving a minimal acceptable success level, meaning meeting only the basic
requirements for obtaining a positive opinion about the task (low complexity of the
task, minimal acceptable quality) and saving the maximal amount of their time. The
second group of creators is interested in providing the community-built system
repository with the maximal possible success level, implying creating and editing
contents of high complexity in order to produce best overall quality.
The assertions presented above indicate that both of the motivation function
types are dependent on the complexity level of the task and have common con-
straints related to time. Supplementing the repository with new tasks can be
interpreted as an accrual of this knowledge resource. Increasing motivation for
both the creators and the editors positively affects and accelerates the accrual of this
resource.
The parameters describing the activities of both stakeholders: the creator and the
editor are main elements of the motivation model in the community-built system
(form now on regarded as simply as the “motivation model”). A measure of the
success of their cooperation is the accrual of knowledge in the community-built
system repository, which can be evaluated through the intensity of supplying it with
properly created content. Upon developing a motivation model, one has to consider
a very important factor: the stochastic character of the creator's and editor's arrival,
which is mainly a result of individual work routine and stochastic character of
creators' and editor's motivation parameters. The motivation model regulates the
process of the creator choosing a task to be solved within the scope of a certain
subject on the basis of his/her own motivation function, while taking into consider-
ation the editor's requirements and preferences.
The entire process, from the moment of formulating tasks to the moment of
evaluating them and placing in the repository followed by creating a new set of
tasks waiting for the next group of creators prepared to address them, can be
described as a game scenario. The new tasks are a result of the editor's work.
Modeling a game scenario requires formulating motivation and goal functions of
the game participants with regard to the repository supply process.
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