Waste A% – Resource non-availability
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Significant waste can arise because a resource that has cost money is not available for work, not used when at work, or operates inefficiently when in productive use
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Possible reasons for a resource not being available for productive use include:
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The cost of a resource being unavailable for work can be disproportionately high viz:
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A key team member goes absent, delaying any work by the rest of the team until he or she returns e.g. the surgeon heading an operating team
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Regular absenteeism by team members, a sign of low morale, puts more pressure on team-mates or more staff/ overtime having to be employed if customer demand is to be met
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A key component is out of stock, stopping all work further down the line
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A key piece of equipment or a computer system breaks down, stopping all services until it’s repaired
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A hospital operating theatre closes every night, over weekends and on bank holidays, causing many patients to suffer for longer
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There’s a limit to availability percentages, however – 100% is impossible to achieve:
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People need holidays and inevitably some will fall ill – they also need ‘rest-breaks’ throughout their working day, especially to refresh grey cells
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Suppliers will not always be able to deliver exactly on time
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Customer demand will fluctuate and sometimes cause even the best stock control systems to suffer stock-outs
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Machines will break down unexpectedly and need regular ‘planned maintenance’ stops
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Hospital beds cannot be made available 100% of the time – downtime is needed for vital cleaning and changing of sheets – otherwise the risk of cross-infections is greatly increased