Information Technology Reference
In-Depth Information
Traditionally, design models are based on the development model in V
3
, which
was enhanced by Kolski [KOL 98] by including two stages of ergonomic evaluation
for the specification and design phases. The iterative approach, such as has been
recommended by Gould and Lewis [GOU 85] and Popovic [POP 99], included the
evolutive specifications enabling us to integrate the results that come from analyses
of the activity over the course of development. A certain consensus concerning the
UCD approach was reached with the creation of the ISO 13407 standard
([MAG 01], Figure 7.2). Nonetheless, even if this iterative design approach is
essential, it is not always possible to implement several iterations due to a lack of
time or funds.
Plan the human-centered
process
Understand and specify
the context of use
Specify the user and
organizational requirements
Evaluate design against
requirements
Produce design solutions
Meets
requirements?
Key human-centered design
activities (from ISO 13407)
Figure 7.2.
Human-centered design process [MAG 01]
The preliminary work of the VIVRE2 project consisted of implementing the
UCD approach in the design of the assistance system (see Figure 7.3) by integrating
the constraints of a pluridisciplinary development and the time necessary to carry
out the ergonomic and behavioral analyses essential to definition of the real needs of
users and the situations to assist. To this end, a first planning stage enabled all the
analyses to be defined that need to integrate the driver and the contexts of use. This
stage ensured the choice of necessary tools to guarantee the efficiency of the
3 V Cycle: software design method comparing the development phases and associated test
phases.
