What is the cost of inaction?

The cost of inaction is the amount a company loses every year because a process is not improved. It never appears on an invoice; it spreads across waiting times, manual rework, value leakage along the order flow and the downstream cost of defects. Because it is never booked anywhere it stays invisible – and it keeps accumulating with every year without process transparency.

How does the cost-of-inaction calculator arrive at its result?

The calculator first derives your process volumes – such as the number of orders per year – from industry, company size, units sold, value per unit, customer base and production type. Those volumes are then combined with industry-typical benchmarks for manual effort, value leakage, error rates and variant overhead. The result is split across the four process dimensions time, cost, quality and complexity and projected over the time horizon you select.

What is the Devil's Quadrangle?

The Devil's Quadrangle is a model from business process management that describes the four competing performance dimensions of a process: time, cost, quality and flexibility. It became widely known through the redesign research of Hajo A. Reijers and Selma Limam Mansar (2005), who assessed 29 redesign heuristics by their effect on those four dimensions. The name refers to the fact that, in practice, the four dimensions cannot be improved at the same time.

Why is time opposed by cost, and quality by flexibility?

Cycle time is usually shortened with additional resources, parallel processing or buffers – all of which cost money, which is why time is opposed by cost. Quality, by contrast, comes from standardisation, controls and tight specifications, while flexibility demands the opposite: variants, special cases and exceptions. Every additional variant creates handovers and defect sources, which is why quality is opposed by flexibility.

Can all four dimensions be improved at the same time?

Not within a given process design: whoever raises one dimension pays in the others. The trade-off only loosens once the actual causes inside the process are known, because then you find levers that improve several dimensions at once – a clarification loop, for instance, that simultaneously costs time, creates defects and builds up variants. That is exactly what causal process intelligence aims at: not winning the trade-off, but moving its frontier outward.

How reliable are the calculator's results?

The calculator gives you an order of magnitude, not a commitment. It works with industry benchmarks and typical process KPIs rather than your system data, and it is meant to start an internal discussion with a number you can follow. The actual figures only emerge from an analysis of your own event data.

Is my input sent to Noreja?

No. The entire calculation runs in your browser, no login is required, and the values you enter are not sent to a server. The PDF with your own settings is generated locally as well.

Cost of Inaction

What does doing nothing cost you?

Process problems do not disappear when you ignore them – you just pay for them invisibly. Every day without process transparency costs cycle time, margin, quality and patience. The cost-of-inaction calculator makes those hidden costs visible in five minutes: once for a single year and once for the horizon you actually have to plan for.

The calculation is based on industry benchmarks and typical process KPIs. You describe your business – industry, size, units sold, value per unit, customer base and production type – and pick the end-to-end process you care about: order-to-cash, purchase-to-pay, production, maintenance, lending or claims handling.

From those inputs the calculator derives your process volumes and splits the hidden cost across the four process dimensions: time, cost, quality and complexity. What you get is not a marketing promise but a transparent order of magnitude – including a PDF you can take into your internal discussion.

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No login, no data transfer: the calculation runs entirely in your browser.

Time

Manual touchpoints, waiting times and clarification loops per case

Cost

Value leakage on the volume flowing through the process

Quality

Defect cases, rework and their downstream cost

Complexity

Overhead from variants, system breaks and handovers

The calculator: your numbers, your process dimensions

Pick your industry, your size and the end-to-end process you want to look at. Every change feeds straight into the result and into its split across the four process dimensions.

Which process do you want to calculate?

End-to-end process

Company & business model

Industry

Company size

Products/services sold per year

Value per product/service

€

results in annual revenue€100,000,000

8,333 Orders/yearAvg. order value €12K500 Employees€200K Revenue per employee

Customer basenot used

Avg. items per orderautomatic

Business / production type

Share of recurring revenuenot used

Material / purchasing sharenot used

Calculation

Customer orders per year8,300

2,100Derived: 8,30033,000

Avg. effort per instance: 10 min

Process transparency today2 / 5

Isolated reports and KPIs

Time horizon5 years

110

Cost of inaction per year

€705,149

€85 per order0.71 % of revenue

Over 5 years

€3,525,743

Split across the process dimensions

Time€111K

Cost€345K

Quality€137K

Complexity€112K

Typically addressable in the short term

€141K – €247K / 1 year

Validate your potential with us

Estimate based on industry benchmarks and typical process KPIs. We determine the actual figures together, based on your system data.

Devil's Quadrangle

The trade-off every process initiative negotiates

Every process is measured along four dimensions – and they pull against each other. Time is opposed by cost, quality is opposed by flexibility. Halve your cycle time and you usually pay in cost; demand maximum flexibility and you lose standardisation, and with it quality. That tension is exactly what the Devil's Quadrangle describes.

Drag one of the four handles or use the sliders: you immediately see who pays for the gain. The opposing dimension carries half of the loss, the two adjacent ones a quarter each.

Typical target pictures

Tension axis time ↔ costTension axis quality ↔ flexibilitydrag the handle

Who is paying right now?

Time

↔ Cost

50%

0 vs. balanced

Shorter cycle time, less waiting and fewer clarification loops. Speeding up costs buffers, people and parallel capacity.

Flexibility

↔ Quality

50%

0 vs. balanced

More variants, special cases and adaptability. Every exception creates variants, handovers and defect sources.

Cost

↔ Time

50%

0 vs. balanced

Lower process cost per case, less resource consumption. Saving money lengthens queues and pushes down on quality.

Quality

↔ Flexibility

50%

0 vs. balanced

Fewer defects, less rework and fewer deviations from the norm. Zero defects means controls, standards and less leeway.

Trade-off stretched0%

balanced – nobody pays noticeably

The Noreja effect: move the trade-off frontier

The trade-off only holds as long as you do not know which cause drives which effect. With causal process transparency you find the drivers that improve several dimensions at once – the quadrangle grows outward instead of just tilting.

Causal process transparencyShared headroom +0%

Flying blindCausally transparent

Frequently asked questions

Cost of inaction and the Devil's Quadrangle – briefly explained

What is the cost of inaction?: The cost of inaction is the amount a company loses every year because a process is not improved. It never appears on an invoice; it spreads across waiting times, manual rework, value leakage along the order flow and the downstream cost of defects. Because it is never booked anywhere it stays invisible – and it keeps accumulating with every year without process transparency.
How does the cost-of-inaction calculator arrive at its result?: The calculator first derives your process volumes – such as the number of orders per year – from industry, company size, units sold, value per unit, customer base and production type. Those volumes are then combined with industry-typical benchmarks for manual effort, value leakage, error rates and variant overhead. The result is split across the four process dimensions time, cost, quality and complexity and projected over the time horizon you select.
What is the Devil's Quadrangle?: The Devil's Quadrangle is a model from business process management that describes the four competing performance dimensions of a process: time, cost, quality and flexibility. It became widely known through the redesign research of Hajo A. Reijers and Selma Limam Mansar (2005), who assessed 29 redesign heuristics by their effect on those four dimensions. The name refers to the fact that, in practice, the four dimensions cannot be improved at the same time.
Why is time opposed by cost, and quality by flexibility?: Cycle time is usually shortened with additional resources, parallel processing or buffers – all of which cost money, which is why time is opposed by cost. Quality, by contrast, comes from standardisation, controls and tight specifications, while flexibility demands the opposite: variants, special cases and exceptions. Every additional variant creates handovers and defect sources, which is why quality is opposed by flexibility.
Can all four dimensions be improved at the same time?: Not within a given process design: whoever raises one dimension pays in the others. The trade-off only loosens once the actual causes inside the process are known, because then you find levers that improve several dimensions at once – a clarification loop, for instance, that simultaneously costs time, creates defects and builds up variants. That is exactly what causal process intelligence aims at: not winning the trade-off, but moving its frontier outward.
How reliable are the calculator's results?: The calculator gives you an order of magnitude, not a commitment. It works with industry benchmarks and typical process KPIs rather than your system data, and it is meant to start an internal discussion with a number you can follow. The actual figures only emerge from an analysis of your own event data.
Is my input sent to Noreja?: No. The entire calculation runs in your browser, no login is required, and the values you enter are not sent to a server. The PDF with your own settings is generated locally as well.

Sources & further reading

What this model is built on

The Devil's Quadrangle is not a marketing picture but an established model from business process management research. The sources below describe its origin, its further development, and how the trade-off can be measured with real process data. Every link goes straight to the primary source.

Devil's Quadrangle: origin and further development

The standard literature on the trade-off between time, cost, quality and flexibility – and how the model is being extended today.

Measuring the trade-off with process data

Without dependable process data the trade-off stays an assertion. These sources describe how it becomes measurable.

Context and overview

For getting started and for historical context: why processes get rethought at all, and where process mining comes from.

Look up the terms at Noreja

We explain the core concepts behind this page in detail in our knowledge base:

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