abestos abatement decision
TRANSCRIPT
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INTRODUCTION
A knowledge-Based System that aims at assisting the
project manager of Asbestos-testing and consulting firm
in deciding on an asbestos abatement recommendation for a
building in a light of existing strategic, legal and
social concerns. The system again helps in solving the
many demand for experts and constrains facing the
industry.
The system is based on five major factors;
1. Strategic and Operational Business
2. Condition of Asbestos
3. Type of Asbestos
4. Legal Factors
5. Degree of Social Pressure
The system is based on the following five key
factors; Strategic and Operational Business,
Condition of Asbestos, Type of Asbestos, Legal
Factors, Degree of Social Pressure.
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DEPENDENCY DIAGRAM
Strategic and Operational Business
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Dependency Diagram for Remaining Factors
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Therefore, the final recommendation is made based on the
previous analysis (in the dependency diagrams above). The
final dependency diagram is shown below:
Recommendation
Condition of Asbestos
Type of Asbestos
Social Pressure
Legal Factors
Strategic and OperationalBusiness
RecommendationRule -Sets
Rule
E = Encapsulation
R = Removal
En = Enclosure
NAT = No Action Taken
H = High
M = Medium
L = Low
E / R/ En / NAT
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DECISION CHART
Types of Asbestos
Composition Percent Friability Amount Asbestos
TypeOther * * * Low
Amosite High or
Medium
High or
Moderate
* High
Amosite * * * Medium
Legal Factors
Actual Danger Laws Legal Factors
High No LowLow Yes High
* * Moderate
Social Pressure
Owner
Neglect
Hazard
Exposure
Employee
Pressure
Media
Pressure
Public
Pressure
Social
Pressure
Yes Yes * * * High
Yes * High Yes Yes High
* Yes High Yes Yes High
* * * * * Low
Condition of Asbestos
Accessibiltiy Visual
Condition
Air Effect Condition
High High High or Low High
High High or Low High High
High or Low High High High
* * * Low
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Recommendation
Type of
Asbestos
Legal
Factors
Social
Pressure
Condition
of
Asbestos
Recommendation
High or
Moderate
High High High Encapsulation
Moderate Low High or
Low
Moderate Enclosure
Low * * low Removal
* * * * No Action
Taken
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SNAP SHOTS (Nature of the user interface)
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Recommendations
The recommendations that the system make are:
Removal, Encapsulation, Enclosure, and No action
At this point, the recommendations to be included
in the prototype system are deliberately limited
to the following four:
Removal: Removal is the most widely
recommended abatement procedure.
Removal eliminates the asbestos source and the
need for special operations and maintenance
programs. It is also the most expensive
recommendation to carry out, in some cases
requiring a shutdown of facilities.
A removal recommendation is made if the strategic
and operational business considerations are long-
term, if the condition of the asbestosis poor, if
the type of asbestosis rated high or medium, if
the legal factors are high, and if the degree of
social pressure is high.
Encapsulation: Encapsulation involves coating
asbestos with a sealant that binds the asbestos
fibers together to create some resistance to
physical and mechanical damage. Encapsulation is
recommended if the strategicand operational
business considerations are short-term, if the
condition of the asbestosis fair or poor, if the
type of asbestosis rated medium, if the legal
factors are low, and if the degree of social
pressure is low.
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Enclosure: Enclosure involves constructing
airtight walls and ceilings around the asbestos-
containing material. This reduces exposure in the
area outside the enclosure. Initial costs of
enclosure are lower than those associated with
encapsulation or removal; but long-term costs can
be higher, since enclosure does not eliminate or
alter the condition of the source of asbestos.
Enclosure is recommended if the strategic and
operational business considerations are short-
term, if the condition of the asbestos is fair,
if the type of asbestosis rated low, if the legal
factors are low, and if the degree of social
pressure is low.
No action: The recommendation to take no
action may be made when the asbestos-containing
material is in good condition and has no chance
of being disturbed. If abatement action were
taken in such a situation, it might cause a more
hazardous condition than previously existed.
Periodic inspections to ensure the integrity and
soundness of the asbestos containing material in
question remain necessary when this
recommendation is adopted. No action is
recommended if the strategic and operational
business considerations are short-term or long-
term, if the condition of the asbestosis good, if
the type of asbestosis rated low, if the legal
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factors are low, and if the degree of social
pressure is low.