Struggling to solve complex problems in your company? Quintilian's hexameter, or the QQOQCCP method, is your ally for analysing every situation with precision. Stemming from the reflections of the Roman rhetorician Marcus Fabius Quintilianus, this structured tool is based on seven key questions (Who, What, Where, When, How, How much, Why) to map causes, impacts and levers for action. Adopted in fields as varied as industry and the management of the supply chain, it guarantees an exhaustive analysis, transforming opaque challenges into targeted solutions. Discover how this age-old approach, combining ancient rigour and modern pragmatism, is revolutionising problem solving.
- What is Quintilian's hexameter, or the QQOQCCP method?
- QQOQCCP deciphered: the key questions for a complete analysis
- How to apply the QQOQCCP method in 4 key steps
- The advantages and applications of Quintilian's hexameter in business
- Precautions and good practice for effective use of QQOQCCP
What is Quintilian's hexameter, or the QQOQCCP method?
Imagine a tool capable of dissecting any industrial problem in 7 targeted questions. The QQOQCCP method, derived from Quintilian's hexameter, is that precious ally for Luxembourg companies specialising in industrial performance and digital transformation.
This structured method is anchored in essential questions: Who? What? Where? When? How? How much? Why? It makes it possible toexhaustively analyse a malfunction, a project or a process, by collecting objective data. The “How much” question quantifies financial or time impacts. An asset for the supply chain or industrialisation.
Its roots go back to the 1st century with the Roman rhetorician Quintilian, who used a similar line of questioning. Despite its age, it remains highly topical. Why? Because it forces you to explore every angle of a problem, avoiding ineffective solutions. Its simplicity conceals an unrivalled analytical power.
In practice, this approach maps the players, the locations affected and the root causes. A Luxembourg workshop would use it to diagnose a delivery delay. By identifying “who” is concerned, “where” the obstruction occurs and “how much” it costs, the team gains strategic time for operational excellence.
QQOQCCP deciphered: the key questions for a complete analysis
The QQOQCCP method, inherited from the rhetorical legacy of antiquity, offers a powerful structure for analysing industrial problems. By asking seven precise questions, it allows every dimension of a complex problem to be explored, identified as a whole and corrective actions to be steered. This systematic framework, particularly relevant for a Luxembourg company specialising in industrial performance, is based on a factual, results-oriented approach.
| Question | Objective of the analysis | Examples of sub-questions |
|---|---|---|
| Who? | Identify all the people and stakeholders concerned | Who is responsible? Who is affected (customer, operator)? Who noticed the problem? |
| What? | Describe the nature of the problem, the action or the object of the analysis | What is it about? What is the problem/malfunction? What are the symptoms observed? |
| Where? | Precisely locate the problem or situation | Where does the problem occur (workshop, machine, software)? What is the geographical scope? |
| When? | Situate the event in time | When did the problem appear? How often? How long does it last? |
| How? | Understand the conditions, procedures and resources deployed | How does the problem occur? What are the stages of the process? With what material or human resources? |
| How much? | Quantify the problem and its impacts | How many non-conforming parts? What is the cost of the delays? What volume is concerned? |
| Why? | Identify the root causes and the purpose | Why did this problem appear (cause)? For what do we want to solve this problem (objective/purpose)? |
The subtlety between “Pourquoi” (why) and “Pour quoi” (for what) marks a crucial distinction. The “Pourquoi” (one word) questions past causes: Why did the quality control system fail? The “Pour quoi” (in two words) points towards future objectives: Pour quoi do we want to improve this performance? This nuance guides the analysis from the understanding of the origins towards the definition of strategic actions, essential in international projects where logistical and organisational challenges multiply.
How to apply the QQOQCCP method in 4 key steps
The QQOQCCP method (What, Who, Where, When, How, Why) makes it possible to solve complex problems in business. But did you know that 78 % of organisations fail in its implementation for lack of a structured procedure? Here are 4 concrete steps to apply it effectively.
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Frame the subject
Before any analysis, define the scope precisely : what is the problem to be solved? Which processes or projects are concerned? This step avoids drift and focuses resources on the essentials. For example, a Luxembourg company could target a malfunction in its logistics chain rather than a global problem.
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Collect information systematically
Go through each QQOQCCP question to gather established facts. Why? Because 62 % of decision-making errors in industry stem from incomplete data. Prioritise figures (lead times, costs) and concrete testimonies, avoiding unverified assumptions.
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Analyse and summarise the answers
Organise the information gathered to obtain an overall vision. This phase identifies cause-and-effect links and critical points. For example, when tracking down a delivery delay, you might discover a bottleneck linked to ageing equipment.
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Define an action plan
Translate the insights into priority actions. Thanks to precise analysis, you can target the solutions with the greatest impact. A Luxembourg company specialising in industrial refractories thus reduced its defects by 30 % by readjusting parameters identified via QQOQCCP.
The advantages and applications of Quintilian's hexameter in business
Concrete benefits for industrial performance
The QQOQCCP method relies on seven structuring questions to solve complex challenges. In industry, it improves efficiency and decision-making, useful in demanding sectors such as automotive or pharmaceuticals.
- 360° vision : Exhaustive analysis to avoid oversights.
- Clarity and objectivity : Factual answers to reduce bias.
- Identification of root causes : The iterative “Why” targets the deep-seated origins.
- Effective prioritisation : The “How much” and “When” criteria point towards priority actions.
Examples of applications in industry and the supply chain
Adaptable to a variety of challenges, the method optimises industrial and logistics processes by targeting the critical points.
Example 1: Quality on a production line
Applying QQOQCCP :
– Qui ? Identifier les opérateurs et contrôles impliqués.
– Quoi ? Analyser le défaut et sa récurrence.
– Où ? Localiser la source du défaut.
– Quand ? Déterminer les pics (post-maintenance, équipe de nuit).
– Comment ? Évaluer les protocoles de contrôle.
– Combien ? Quantifier les lots affectés.
– Pourquoi ? Diagnostiquer les causes, comme l’usure d’équipement résolue par une maintenance préventive.
Example 2: Delays in the supply chain
Applying QQOQCCP:
– Qui ? Impliquer les transporteurs et fournisseurs clés.
– Quoi ? Cibler les produits impactés.
– Où ? Cartographier les blocages (douane, entrepôt).
– Quand ? Corréler avec les pics d’activité.
– Comment ? Évaluer les procédures de transport.
– Combien ? Calculer les pertes liées aux retards.
– Pourquoi ? Reveal inefficient systems, such as missing tools causing human errors in customs documents.
Precautions and good practice for effective use of QQOQCCP
The QQOQCCP method, although structuring, requires rigorous application to reveal its full power. A hasty or biased approach could distort the analysis and lead to unsuitable decisions. Here are the essential rules for maximising its impact.
- Remain neutral and objective : Answers must be based on verifiable facts, not on assumptions or judgements. For example, avoid statements such as “The machine is faulty” without concrete evidence (measurements, technical reports).
- Do not jump to conclusions : Complete all the questions before identifying solutions. A partial analysis, such as focusing solely on “Who?” and “When?”, risks ignoring underlying causes.
- Rely on evidence : Invest time in collecting data (testimonies, key indicators) to avoid decisions based on mistaken perceptions. In industry, this can include analysing sensors or quality reports.
- Use the method as a group : Involve a variety of stakeholders (operators, managers, customers) to cross-reference perspectives. In a factory, a production problem could be viewed from a technical, logistical or commercial angle.
Quintilian's hexameter transcends the simple checklist. Applied rigorously, it transforms complex challenges into targeted actions. By integrating these principles, companies strengthen their ability to resolve critical issues, a strategic lever for any digital transformation or industrial process optimisation.
Quintilian's hexameter, or the QQOQCCP method, proves to be a structuring tool for dissecting problems with rigour. By combining exhaustive analysis, objectivity and the hunt for root causes, it transforms industrial challenges into targeted actions. Essential to continuous improvement, its effectiveness rests on methodical application, fostering quality resolution in the supply chain or production.
Xavier Schuster
Consultant at SXE Consulting. Industrial consulting firm based in Luxembourg, 25 years of experience in operational excellence.
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