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Figure 2. Agile Smart Space Development and Evolution
As depicted in Figure 2, ASSDE includes
three main phases: Smart Space Initiation, Smart
Space Development, and Smart Space Operation
and Evolution. The Smart Space Initiation phase
provides a backlog of smart space applications,
described as scenarios. In the Smart Space Devel-
opment phase, these scenarios are broken down
into sprint(s) that describe an agent or a set of
agents needed for an application. The application
development exploits a set of predefined ontolo-
gies. In the Smart Space Operation phase, the smart
space application (SSA) is tested which provides
feedback to the earlier phases. The interoperability
platform (IOP) is the key reusable component, on
top of which applications are developed. These
applications embody the ability to understand and
process the defined scope of ontologies through
the means of agents.
The phases of the ASSDE methodology are
used as a framework for structuring this section
into three phases. In each phase, first, the chal-
lenges and issues related to the phase are discussed
and explained. Second, concrete solutions which
implement ASSDE are presented and exemplified
based on our actual experience within Sofia (So-
fia 2010). Third, open issues are briefly summa-
rized for further discussions in the following
section.
PHASE I: SMART SPACE INITIATION
Challenges and Issues
The challenges and issues of the smart space ini-
tiation phase relate to the specification of what a
smart space is, why it is needed, what it should
provide and how the space should be established.
The challenges and issues include the following
things:
Business viewpoint: Can/must a smart
space be profitable? What are the value
creation model and the stakeholders' busi-
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