BS EN 31010:2010 pdf download

BS EN 31010:2010 pdf download.Risk management.
• selection of a group of experts (may be one or more panels of experts);
• development of round I questionnaire;
• testing the questionnaire;
• sending the questionnaire to panellists individually:
• information from the first round of responses is analysed and combined and re-circulated to panellists:
• panellists respond and the process is repeated until consensus is reached.
B.3.5 Outputs
Convergence toward consensus on the matter in hand.
8.3.6 Strengths and limitations Strengths include:
• as views are anonymous, unpopular opinions are more likely to be expressed:
• all views have equal weight, which avoids the problem of dominating personalities:
• achieves ownership of outcomes:
• people do not need to be brought together In one place at one time. Limitations include:
• it is labour intensive and time consuming:
• participants need to be able to express themselves clearly in writing.
8.4 Check-lists
B.4.1 Overview
Check-lists are lists of hazards, risks or control failures that have been deveiop.e.g usually
I rony experience, either as a result of a previous risk assessment or as a result of past failures.
B.4.2 Use
A check-list can be used to identify hazards and risks or to assess the effectiveness of controls. They can be used at any stage of the life cycle of a product, process or system. They may be used as part of other risk assessment teehniques but are most useful When applied to check that everything has been covered after a more imaginative technique that identifies new problems has been applied.
B4.3 Inputs
Prior information and expertise on the issue, such that a relevant and preferably validated check.list can be selected or developed.
8.4,4 Process The procedure is as follows:
• the scope of the activity is defined:
• a check-list is selected which adequately covers the scope. Check-lists need to be carefully selected for the purpose. For example a check-list 01 standard controls cannot be used to identify new hazards or risks:
• the person or team using the check-list steps through each element of the process or system and reviews whether items on the check-list are present.
B.4.5 Outputs
Outputs depend on the stage of the risk management process at which they are applied. For exampte output may be a list of controls which are inadequate or a list of risks.
B.4.6 Strengths and limitations
Strengths ol check-lists include:
• they may be used by non experts;
• when well designed, they combine wide ranging expertise into an easy to use system:
• they can help ensure common problems are not forgotten.
Limitations include:
• they tend to inhibit imagination in the identification of risks;
• they address the ‘known known’s’, not the ‘known unknown’s oc the ‘unknown unknowns’.
• they encourage ‘tick the box’ type behaviour;
• they tend to be observation based, so miss problems that are not readily seen.
8.5 Preliminary hazard analysis (PHA)
U.5.1 Overview
PHA Is a simple, inductive method of analysis whose objective is to Identify the hazards and hazardous situations and events that can cause harm for a given activity, facility or system
B.5.2 Use
It is most commonly carried out early in the development of a project when there is little information on design details or operating procedures and can often be a precursor to further studies or to provide information for specification of the design of a system. It can also be useful when analysing existing systems for prioritizing hazards and risks for further analysis or where circumstances prevent a more extensive technique from being used.
B.5.3 Inputs Inputs include:
• information on the system to be assessed;
• such details of the design of the system as are available and relevant.
B.5.4 Process
A list of hazards and generic hazardous situations and risks is formulated by considering
characteristics such as:
• materials used or produced and their reactivity.