Information Technology Reference
In-Depth Information
interaction history (when). The augmentation communication mobile objects are
mainly drawn from three categories:
- autonomous mobile objects which contain the essential minimum required to
function (user interface, network interface, location possibility). For example it
could be a PDA or a SmartPhone;
- environment embedded objects which are not mobile, but can be moved. For
example they might consist of information terminals which can be placed at the
most opportune place in relation to the activity which requires support;
- passive objects which are not directly connected by a network, but can be so
via the intermediary of another object which is. For example RFID stickers which
provide information via the RFID when placed in proximity to it. These objects
have the objective of ensuring communication between the user and physical
objects, and between mobile or fixed (augmented) physical objects.
Following the description of the issues and the objectives, the work carried out
with the students of the Ecole Centrale of Lyon consisted of reformulating this issue
in the form of a requirement, and then the elaboration of specifications in line with
the software engineering approach, relying on UML modeling: use cases, sequence
diagrams, class diagrams, transition-state diagrams for each significant class,
collaboration diagram, architecture diagram and deployment diagram.
The approach for the design of interactive applications was also carried out by
building the different models recommended by [CAL 03] with in particular the task
model, for each of the identified participants shown in CTT (
Concurrent Task
Trees
) [PAT 00], design model, dialog model and the abstract and practical
interfaces which take into account the reusable interaction
patterns
[CHA 07]. The
study of the choice of configuration for the wearable computer for each mobile user
was also done with an explicit and precise evaluation based on the approach
described in [MAS 06]. Particular attention was given to the following mobile users:
transporter-deliverers and traffic wardens (policemen given the task of booking in
the event of improper use of delivery areas by non authorized motorists) taking into
consideration the range of applications of their wearable computer. The envisaged
contextualization medium was the RFID label, but the use of other sensors does not
call the development of the modeling into question.
The study enabled the consideration of both the forecasting of deliveries and the
adjustment in real time of the deliverer's routes, depending on the disruptions that
occurred. To have a clear perception of the different aspects of the daily lives of
deliverers, three situations increasingly representative of reality were successively
taken into account:
