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Fig. 5. Rapid Application Development methodology - Prototyping
Based on their response, further improvement takes place and the system is presented to the
potential users again. After several iterations, no further improvements are proposed and
the system is finally deployed. Scheme of Prototyping is in Figure 5.
End-User Development is a special case of DSS application development. The decision
support tool is build by the users themselves. The advantages of this approach are
undoubtedly the speed of development, the minimum cost and full compliance with the
user's needs. On the other hand, there are considerable disadvantages associated with non-
standard procedures of this type of development, such as inadequate documentation,
improper use of development tools, the use of inappropriate technologies, or poor data
security (Power, 2000).
5. Design and development of laboratory research DSS
The motivation for design and development of the decision support system for laboratory
research is the need of practical tool for management and support of the research of organic
semiconductors and their application in the field of vapor and gas sensors. The main aim of
the proposed DSS is shortening the duration of research by revealing hidden knowledge in
the measured data. Another goal is to make the research more efficient by the system's
ability of manage, process, and properly present the measured data.
In the early stage, several system requirements were identified. The key requirements are: 1)
requirement for presentation of measured data in a graphical form, 2) requirement for
classification of the measured specimen, and 3) requirement for the prediction of material
parameters of the sensitive layer according to the required response parameters.
There are also some requirements for the development. The first is to use in-house
development. The second is to use only free or open source applications. Finally the third is
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