Table AII

Risk factors in environment aspect

ValueEnvironment
OccurrenceSeverityDetectionControlInformationRange
1It is almost impossibleNo effect: the effect is unverifiable, change is not sensibleSense perception is directly and immediately possible by anyone, at any time of the dayIt does not require any regulation, spontaneously regularizedNo information is requiredNobody is involved
2AnnuallyNeutral: the effect is verifiable, but the caused change is not sensibleSense perception is directly and immediately possible by anyone, but only in smooth atmospheric/optical/noise conditions (e.g. only in daytime)Open-loop (nonfeedback) control is enoughAll the information is available to know the failure modes and effectsMax. 1 person is involved in the factory, max. 1 day is the correction
3QuarterlyTolerable: unwanted changes can be detected, but they do not affect any essential features of the given unitEspecially difficult to detect sensory, even in daytime, under optimal conditionsOnly local control, easily controllable using feedbackThe failure modes and effects are known, but not all the information about effects given in advance, but can be acquired after the occurrence2 or 3 people are involved in the factory, or 4–5 days is the correction
4Once a monthAcceptable as tolerated status: unwanted changes can be detected, they do affect more essential features of the given unitSense perception is possible only using tool (e.g. light, the use of contrast agents, the use of indicators, etc.)requires local forecast, feed-forward controlThe failure modes and effects are known, but not all the information about the effects is given in advance and also cannot be obtained after the occurrence4 or 5 people are involved in the company, or 4–7 days is the correction
5Several times a monthAnnoying: functions are sustainable, but conditions are deterioratingSense perception is not possible; however, the change is demonstrable mathematically (calculation, inventory, mass balance, etc.)Higher-level control, easily controllable using feedbackThe failure modes are known, but not all the effects, or not all information about the effects is given in advance, but can be obtained after the occurrenceMin. 6 people are involved in the company, 7-10 days is the correction
6Once a weekLittle problem: the irreversibility described above exists; however, the change is not over limit or qualification barrier, or the change is over limit, but the effect is reversible without any corrective actionImmediately can be detected by instruments in own ownership and useRequires forecast from higher level, feed-forward controlThe failure modes are known, but not all the effects, or not all information about the effects is given in advance, and can be only estimated after the occurrenceImpact on the total internal operation of the company but can be corrected internally
7Several times a weekProblem: irreversibility exists, the change is over one limit or qualification barrier, the effect is reversible without any corrective actionImmediately can be detected by instruments from external sourceRequires forecast from higher level, feed-forward control, but only partially effectiveFailure modes are nor known folly and effects can be estimated only partlyWidespread involvement within the company, one business partner is involved
8Once a dayRestrictive: the change is over each limit, regulation and so on, as a consequence the unit gets into lower quality class, but the change is reversibleNot all parameters can be detected using in-situ procedureIt requires the use of multiple control tools for multiple levels, but only partially effectiveThere is no information about failure modes and effects in advance, but can be obtained after occurrenceWidespread involvement within the company, more business partners are involved, environmental damage in max. 50 m radius
9Several times a dayHarmful: the change is over each limit, regulation and so on, as a consequence the unit gets into lower quality class, the change is irreversibleCan be detected only based on sampling, in laboratory conditionsThere is no influence, not controllableThere is no information about failure modes and effects in advance, and they can be obtained after occurrence only in partWidespread involvement among the business partners, social environment and inside the company, environmental damage in 50200 m radius
10Per shiftTerminating: the unit or the whole system ceases to exist or loses determinating featuresInstrumental analytical tests cannot detect (or close to error limit), at most generation changes can be detectedThere is no influence, going to unfavorable directionThere is no and cannot be obtained information about failure modes and effectsWidespread involvement among the business partners, social environment and inside the company, large publicity, environmental damage is in over 200 m radius

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