Environmental Engineering Reference
In-Depth Information
• Creation of software shell for knowledge
base management that will provide possi-
bility of adding, changing and searching of
information;
• Acquisition, analysis, systematization and
inputting data into the knowledge base.
Chapter 8:
“Incidents in NPP operation caused
by I&C systems;”
Chapter 9:
“Terms and definitions;”
Chapter 10:
“Reports on research and develop-
ment activities;”
Chapter 11:
“Publications.”
Structure, purpose and use of knowledge base
will be illustrated as an example of knowledge base
on the NPP I&C systems that is created within the
development process of information environment
of SSTC NRS, according to Beliy, 2008. Main
principles of knowledge base creation of the NPP
I&C systems and the stages of this activity are
reflected in Klevtsov, 2007,a-c.
Technically knowledge base is organized in
the form of relational database, containing linked
tables, forms, and queries. There is no sense to
give a detail structure of database in this topic.
However, in general within knowledge base seven
main chapters used during expert review of the
NPP I&C systems (and also during execution of
other activities) can be marked out:
Specified topics are outlined in knowledge
base nominally. Each such chapter covers a part
of knowledge base (tables, queries, and forms)
that is related to only one specific topic.
General structure and main directions of the
knowledge base at NPP I&C systems are shown
in Figure 2.
The structure of each of mentioned above
chapters is determined taking into account expe-
rience of safety standardization and assessment.
Chapter 1 includes regulatory documents
related to safety of the NPP I&C systems. The
knowledge base contains an identification number
of a regulatory document, its name and full text in
electronic or printed form. Besides that for each
of regulatory documents additional features that
allow connecting it (in case of such unambiguous
connections) with a certain type of I&C systems,
with one or another component of I&C systems
(for example, with certain types HW or SW), with
system safety class or with life cycle stages, to
which this document is related, are determined.
In the knowledge base regulatory documents
are classified by organization-developer:
Chapter 1:
“Standards, rules and guides related
to safety of the NPP I&C systems;”
Chapter 2:
“Regulatory requirements on the NPP
I&C systems and their components;”
Chapter 3
: “Reports on expert reviews of NPP
I&C systems;”
Chapter 4:
“New and modernized I&C systems
of NPP power units of Ukraine;”
Chapter 5:
“Documents from NPPs and designers
of I&C systems;”
Chapter 6:
“Methods and procedures of expert
review;”
Chapter 7:
“Results of safety assessment of the
NPP I&C systems and their components.”
• Standards of the International Atomic
Energy Authority (IAEA);
• Standards of the International
Electrotechnical Commission (IEC);
• Standards of the International Organization
for Standardization (ISO);
• European National Standards;
• USA National Standards, IEEE standards,
US NRC documents;
• Intergovernmental standards;
• Guides of State Nuclear Regulatory
Inspectorate of Ukraine;
Besides, four auxiliary chapters, not being
directly relevant to preparation of report of safety
expert review, but can be useful in providing
information support to experts, are included in a
knowledge base:
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