Information Technology Reference
In-Depth Information
Modélisation, de Spécification Et d'aide à la Spécification” (Data Collection,
Analysis, Modeling, and Specification Method) consists of structuring this
knowledge into two flows (see Figure 2.2). The first movement is ascending and
represents the
flow of the definition of needs
. It aims to translate the actual activity
description into a conceptual representation language along a gradual abstraction
process. This flow concerns all the players and begins in the application domain by
the identification of the actual user needs. The ergonomist contribution to this step
consists of collecting data relative to the use and operation of already existing
equivalent systems or contexts. These data are then analyzed to generate the
knowledge regarding the needs, expectations and recommendations for
improvement and innovation. This knowledge is then transmitted to the designer,
who must construct representation models on this basis.
At the end of this phase, the first specifications of the system are drawn up and
can be validated in a second flow. The second movement of data is therefore
descending and represents
the flow of validation of specifications.
It consists of
verifying the appropriateness of the specifications of the system given by the
designer against the recommendations of the ergonomist. This iterative phase of
definition and validation results in the construction of the functional specifications
of a first prototype of the interactive information system (IIS). Once implemented,
this prototype will be evaluated by the ergonomist with a panel of users to update
the reference source of needs.
Modeling
Figure 2.2.
The knowledge flows in RAMSES
