Information Technology Reference
In-Depth Information
Table 4. Mandatory and optional criteria for IOP quality evaluation
Quality
Mandatory criteria
Optional criteria
Security
The identity of users and devices has to be authenticated. There are
various authentication levels to be supported.
The separation of personal informa-
tion from other information is to be
supported.
Access to SS is controlled through appropriate countermeasures for us-
ers/devices/services. No access without authentication is provided.
The actions of users and devices are
to be accounted and available for non-
repudiability purposes.
Unauthorized access to smart spaces is prevented.
The identification and ignoring of
harmful content are to be supported.
Information integrity is to be proved during transmissions between
information sources and sinks.
The security auditing mechanism of
IOP supports various security levels.
Performance and
Dependability
Records on available resources are to be kept. SS should be able to continue
its operation without losses of resources/failures produced by disasters.
Real-time notification and information
delivery.
Scalable: the number of resources, information providers and consumers
should scale up to the numbers that are compatible with application and
deployment scenarios.
Reliable information delivery.
The autonomic adaptation of a smart space. Various types of adaptation
are to be supported; resources, services, information, the quality of
information/services/resources.
method is developed in order to identify the
bottlenecks of smart spaces and to guarantee that
the IOP is scalable for a diversity of spaces; sec-
ond, intelligent monitoring and reasoning mech-
anisms are developed for querying and interpret-
ing measured quality attributes at run time. These
have both passed the early verification and valida-
tion phase in a laboratory setting and are now
under feasibility testing by a set of cross-domain
scenarios selected for the next evaluation step.
•
Issues on how to gain an understanding
about the operation of the space: i) the dy-
namic nature of a smart space, i.e. what is
changing and how often, ii) how well the
smart space is working, and iii) how the
users experience the smart space.
•
Challenges that arise from i) the variety of
the domains that the space is crossing, and
ii) the various timeframes of evolving do-
mains, ontologies and technologies used in
the smart space.
PHASE III: SMART SPACE
OPERATION AND EVOLUTION
In order to tackle these issues and challenges,
a set of supporting facilities are to be provided.
First, the dynamisms of the space shall be illus-
trated to its stakeholders from different viewpoints.
The space owner is mostly interested in how the
space users experience the space. A service/in-
formation provider is interested in how well the
space is working and how many potential users
are visiting the space. Maintenance and smart
space developers would like to see how the space
behaves under normal and stress operations. Thus,
all of these issues should be tackled by the facili-
Challenges and Issues
Although the smart spaces, developed for vari-
ous domains, are still in their initiation phases,
we can identify some challenges and issues that
have arisen or will arise when smart spaces are
in operation for a longer period of time. We cat-
egorize these things into two classes:
Search WWH ::
Custom Search