The “Daily Challenge” Tool: A Practical Approach for Managing Non-Conformities in Industry
Abstract
1. Introduction
2. Methodology for Non-Conformity Management—The “Daily Challenge” Method
2.1. Methodological Background
2.2. Overview of the “Daily Challenge” Method
2.3. Steps of the Methodology
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- Simple (score 3–4): Low-frequency issues with minimal operational impact, typically resolved through routine actions.
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- Medium (score 5–6): Moderate-impact problems requiring coordination between departments and targeted corrective measures.
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- Major (score 7–9): High-impact non-conformities affecting safety, quality, or compliance, demanding immediate action and management involvement.
- Preparing the analysis by identifying and describing the non-conformity, clearly defining the problem, and collecting and analyzing relevant data;
- Conducting the analysis, which involves identifying the root causes using tools such as the Ishikawa diagram or the “5 Whys” technique, evaluating associated risks, and developing and implementing an action plan for resolution;
- Verifying the effectiveness of implemented solutions, standardizing and documenting lessons learned, and establishing a continuous monitoring system to prevent the recurrence of similar problems.
- Problem Description. The reported problem will be described in detail, with the aim of clarifying its context and implications through structured responses to a series of essential questions. The description will cover the problem, its cause, when and where it occurs, how it affects operations, how long it lasts, and why it happens.
- Image. If possible, a relevant annotated image will be included to clarify the non-conformity and enhance understanding.
- Cause Analysis. Causes will be identified in the “5M” categories, scored by impact, and the top three will be analyzed to find solutions [27]. Each identified cause is assigned a score from 1 (low impact) to 3 (high impact), and the scores are then totaled. The three causes with the highest scores are selected for further detailed analysis, during which specific solutions are identified to address these priority causes.
- Correction. A corrective measure will be established to eliminate or mitigate the reported non-conformity [28]. In this regard, a directly responsible person is appointed to coordinate the implementation of the corrective measure, ensuring conformance with the established requirements. A clear deadline will be defined, and the progress of the action will be monitored to ensure timely and effective execution.
- Corrective Action. To avoid recurrence of the non-conformity, precise corrective actions are defined, aimed at eliminating root causes and reducing associated risks. Each action will have an assigned person responsible for its implementation, set deadlines, and the continuous monitoring of its execution [29].
- Control Improvement. Monitoring and detection measures will be optimized to catch non-conformities closer to their source [30]. These actions aim to reduce the time between the occurrence of the problem and its identification, thereby minimizing its impact on the entire system [31]. Each proposed measure is assigned a designated responsible person, with deadlines established and their effectiveness tracked regularly.
- Standard. If necessary, internal procedures or standards will be revised or created to ensure stricter control over the process where the non-conformity originated [32]. A project manager will oversee the update or creation process, ensure alignment with requirements, and adhere to a defined timeline.
- PDCA. An action plan structured around the PDCA (Plan–Do–Check–Act) cycle will be developed. Each action will be assigned to a responsible person, given a deadline, and monitored for status updates. Corrections and improvements will be incorporated into the resulting standard and action plan [33,34].
3. Practical Implementation of the Daily Challenge Tool
3.1. Implementation and Validation of the Daily Challenge Tool in the Bottled Water Industry
- To analyze a real-world non-conformity incident within a spring water bottling process, identifying its root causes and operational impact.
- To apply and evaluate the effectiveness of the Daily Challenge tool in addressing and preventing such incidents.
- To compare the outcomes of the Daily Challenge tool implementation with traditional quality management approaches, highlighting improvements in response time, conformance, and overall efficiency.
3.2. Case Study 1: Labeling Non-Conformity—Missing Net Quantity on Product Label
3.3. Case Study 2: Production Downtime Management—Equipment and Sensor Failure
- What is the problem? Production line 3 experienced a complete halt for 5 h.
- What generated it? Preliminary observations suggested a failure in the conveyor motor; subsequent analysis identified that the motor overload went undetected due to incorrect sensor calibration and insufficient preventive maintenance.
- When did it appear? 15 March 2025.
- Where did it occur? Line 3, final assembly zone.
- How does it affect us? There is a production delay, resulting in 250 units not being delivered on time, which poses a risk of penalties for late delivery.
- How long did it last? 5 h.
- Why did it appear? The root cause analysis indicated a mechanical overload, which went undetected due to inaccurate proximity sensor readings. Further investigation identified the incorrect operation of the proximity sensor due to inadequate staff verification.
- A root cause analysis identified several contributing factors:
- Manpower: There was an omission of weekly maintenance checklist verification.
- Method: The maintenance procedure does not contain detailed instructions on sensor calibration and check points. The maintenance procedure lacks an automated early warning system for abnormal sensor values.
- Material: A sensor model with an inadequate protection class for the existing dust conditions was used; there was a lack of an additional protective filter.
- Machine: Mechanical overload of the conveyor motor. The sensor was not correctly calibrated.
- Environment: Dust accumulation affected sensor readings.
- Immediate corrective actions included the following:
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- Repair of the conveyor motor;
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- Recalibration of the proximity sensor;
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- Updating the maintenance procedure with detailed instructions and verification points;
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- Implementation of a targeted training program on sensor calibration and equipment diagnostics;
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- Integration of a real-time monitoring alert system in the PLC software to detect abnormal current and sensor drift.
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- Revision of the hygiene procedure regarding the frequency and mode of cleaning and worker training.
4. Discussion
4.1. Advantages and Outcomes of Implementing the Daily Challenge Tool
- Rapid problem identification: Enabled by department meetings and structured reporting, issues are detected and addressed promptly.
- Clarity and transparency: The “Daily Challenge” sheet ensures detailed issue descriptions, supporting shared understanding and interdepartmental collaboration.
- Cause analysis and prioritization: Tools like the Fishbone diagram and a scoring system highlight root causes and help focus resources on critical issues.
- Efficient correction: Clearly defined corrective actions, with deadlines and responsibilities, support swift resolution and prevent recurrence.
- Prevention and continuous improvement: Corrective actions, improved controls, and the PDCA (Plan–Do–Check–Act) cycle create a framework for reducing repeated issues and fostering ongoing improvement.
- Clear accountability: Responsibility is assigned for each action, and progress is tracked, enhancing ownership and project follow-through.
- Improved process control: Root cause analysis informs new monitoring actions, improving efficiency and reducing operational risk.
- Standardization and consistency: Revised or new procedures ensure uniformity in addressing issues and maintaining conformance.
- Improved Problem Detection and Resolution
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- Faster Identification: Problems are quickly detected via tools like the “Daily Challenge” form and regular department meetings.
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- Structured Resolution: Root cause analysis and tailored corrective actions ensure effective solutions.
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- Continuous Monitoring: Ongoing tracking ensures lasting resolution and effectiveness.
- Increased Efficiency in Process Management
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- Streamlined Workflow: The integration of material and informational flows ensures smooth coordination between departments, reducing delays and improving decision-making.
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- Resource Optimization: By identifying the most critical causes and addressing them first, resources are allocated where they are most needed, avoiding inefficiencies.
- Enhanced Quality Control
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- Reduced Non-Conformities: Identifying root causes and preventing future occurrences, the number of non-conformities decreases.
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- Prevention-Based Approach: The system emphasizes corrective actions, addressing the underlying causes. This leads to more effective and lasting preventive measures.
- Increased Accountability and Transparency
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- Clear Responsibility Assignments: Every action, from problem identification to corrective measures, is assigned to specific individuals or teams.
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- Status Tracking: Action statuses are visible, ensuring follow-through.
- Enhanced Communication and Collaboration
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- Cross-Departmental Collaboration: Departments work together on problem solving.
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- Clear Communication Channels: Regular meetings and comprehensive documentation facilitate communication at all levels of the organization.
- Continuous Improvement Culture
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- Feedback Loops: PDCA cycles ensure iterative refinement.
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- Standardization and Best Practices: The system encourages the creation and revision of standards based on lessons learned.
- Better Risk Management
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- Proactive Issue Prevention: By preventing recurring non-conformities through analysis and corrective actions, the system helps mitigate potential risks to the business.
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- Timely Interventions: By ensuring that all issues are addressed before they escalate, the system reduces the likelihood of high-impact problems emerging.
- Conformance and Regulatory Assurance
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- Consistent Monitoring and Documentation: Recording and tracking issues ensures that the organization maintains conformance with internal standards and external regulations.
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- Audit Readiness: Records of identified problems, corrective actions, and improvements ensure that the organization is prepared for audits or inspections.
- Cost Reduction
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- Fewer Defects and Rework: The reduction in non-conformities and more efficient problem solving reduces costs related to defective products, rework, and returns.
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- Resource Efficiency: By focusing on critical issues and optimizing workflows, the system reduces waste in time, labor, and materials.
- Customer Satisfaction and Loyalty
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- Improved Product and Service Quality: With fewer defects and issues, customer satisfaction is improved.
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- Proactive Customer Issue Handling: The better handling of customer complaints and feedback leads to a more responsive customer service process and increased customer loyalty.
- Innovation and Knowledge Sharing
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- Root Cause Analysis and Solutions: Insights from problem solving build institutional knowledge.
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- Improved Decision-Making: Data-driven approaches improve strategy and innovation.
- Stronger Organizational Culture
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- Empowerment of Employees: Employees at all levels are involved in identifying and solving problems, which boosts engagement and ownership.
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- Collaboration Across Hierarchies: Encouraging team involvement helps flatten organizational silos and fosters a culture of mutual support.
4.2. Positioning Against Traditional Quality Management Approaches
4.3. Empirical Validation of the Tool’s Impact
4.4. Comparative Reflection with Classical Quality Management System Tools
4.5. Methodology Validation and Limitations
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- Resource Intensity: The implementation of real-time monitoring and the “Daily Challenge” sheet requires dedicated personnel and time, which may be challenging for organizations with limited resources.
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- Scalability: While effective in the case studies, further investigation is needed to assess the scalability of the Daily Challenge tool to larger production facilities with more complex operations.
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- Data Dependency: The success of the Daily Challenge tool heavily relies on the accuracy and timeliness of data input; any discrepancies can affect the system’s effectiveness.
4.6. Lessons Learned from Daily Challenge Tool Implementation
4.7. A Prospective Outlook on the Daily Challenge Tool: Future Directions and Objectives
- Integration with Advanced Technologies
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- Artificial Intelligence (AI) and Machine Learning (ML): Future versions of the Daily Challenge tool could incorporate AI and ML algorithms to predict potential non-conformities before they happen by analyzing historical data, trends, and operational patterns. This proactive approach would help identify risks and reduce the occurrence of non-conformities [47].
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- Automation: Automating repetitive tasks such as data collection, problem tracking, and reporting can significantly enhance the efficiency of the system. Automated alerts and notifications could improve responsiveness and streamline the decision-making process.
- Enhanced Data Analytics and Reporting
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- Real-Time Data Monitoring: The system could evolve to provide real-time data analytics, allowing for immediate visibility into operations and non-conformity statuses. This would improve the speed at which issues are detected and resolved.
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- Predictive Analytics: With the use of advanced analytics, the system could predict trends and patterns of non-conformities, helping organizations take corrective actions before issues become widespread.
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- Visual Dashboards: The introduction of interactive dashboards for managers and decision-makers would provide easy-to-understand visualizations of key performance indicators (KPIs), non-conformity trends, and improvement progress.
- Greater Integration with Supply Chain and External Partners
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- End-to-End Integration: The system could be integrated with external partners and suppliers to ensure that non-conformities within the supply chain are identified, tracked, and corrected. Such an approach would lead to improved product quality and more seamless collaboration between all stakeholders.
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- Collaboration with Customers: Future iterations of the system could allow for direct customer feedback and integration into the non-conformance management process, further enhancing customer satisfaction and aligning the system with customer expectations.
- Enhanced User Experience and Accessibility
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- Mobile and Cloud-Based Access: To support a more flexible workforce, the system could evolve to be fully mobile and cloud-based. This would allow employees and managers to access the system remotely, improving accessibility and collaboration, especially for organizations with multiple locations or remote teams.
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- User-Friendly Interface: Future versions of the system could focus on simplifying the user interface, making it more intuitive for employees at all levels. This would increase the adoption and ease of use for everyone involved in the non-conformance management process.
- Continuous Improvement and Adaptation
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- Self-Optimizing Systems: The future direction could see the system becoming more self-optimizing, learning from past data and continuously improving its ability to identify and mitigate non-conformities. This would involve advanced feedback loops and automatic adjustments to processes.
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- Feedback Loops for Innovation: The system could be designed to continuously collect feedback from users and stakeholders to fuel innovation and drive improvements in both the methodology and system capabilities [48].
- Collaboration with Regulatory and Compliance Bodies
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- Automated Compliance Monitoring: As regulations and industry standards evolve, the Daily Challenge tool could be integrated with regulatory bodies to automatically track compliance and generate reports for audits or inspections. This would ensure the system remains aligned with industry requirements and supports ongoing compliance.
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- Real-Time Updates: With dynamic changes in regulations, the system could be updated automatically to reflect new standards, ensuring that compliance is always maintained without manual intervention.
- Expansion into New Sectors and Industries
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- Industry-Specific Customization: The system could be tailored to meet the specific needs of different industries such as healthcare, aerospace, automotive, or pharmaceuticals. Each sector has unique challenges and regulatory requirements, and customizing the Daily Challenge tool for each would improve its applicability and effectiveness.
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- Integration with Existing Management Systems: The Daily Challenge tool can be seamlessly integrated with existing quality management systems such as ISO 9001, ISO 14001, and ISO 45001, enhancing current processes without necessitating a complete overhaul. This integration streamlines operations and ensures a unified approach to quality, environmental, and occupational health and safety management.
- Scalability and Flexibility [49]
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- Scalability for Large Enterprises: Future directions could focus on making the system more scalable to accommodate large, complex organizations with multiple divisions and geographies. This strategy would involve modular designs and the ability to handle a growing volume of data and processes.
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- Customization for Small and Medium Enterprises (SMEs): On the other hand, the system could be simplified and customized for SMEs, making it more accessible to businesses of all sizes. A more flexible approach would cater to the needs of organizations at different stages of their growth.
- Employee Training and Knowledge Sharing [50]
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- Training Programs and Certifications: Future directions could include comprehensive training programs within the Daily Challenge tool to ensure employees are continually strengthening their skills in identifying and solving non-conformities. This would lead to a more knowledgeable and empowered workforce [51].
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5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
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No. | Category | Material Flow Issue | Informational Flow Issue |
---|---|---|---|
1 | Quality issue | Loss of product | Lack of basic information |
2 | Documentation issue | Noncompliant documents | Lack of atypical/incomplete information |
3 | Quality issue | Product with foreign taste and smell | Incorrect, erroneous, false information |
4 | Quality issue | Product with impurities | Unclear, ambiguous, vague information |
5 | Quality issue | Contaminated product | Delayed, postponed information |
6 | Technical issue | Non-conforming product due to equipment | Delayed, overdue order/product in stock |
7 | Technical issue | Insufficiently carbonated/ozonated product | Delayed order/finished product missing/raw material in stock |
8 | Packaging issue | Noncompliant packaging | Delayed order/finished product missing/raw material missing |
9 | Labeling issue | Noncompliant labels | Delayed order for raw material/delayed order |
10 | Quality issue | Product featuring a different color | Missing, lost, unavailable documents |
11 | Documentation issue | Missing quality documents | Lack of customer notification |
12 | Operational issue | Non-conformity in boxing/palletizing | Delayed customer notification |
13 | Inventory issue | Inventory shortage | Excess information |
14 | Labeling issue | Missing labels/double labeling | Incorrect services |
15 | Regulatory/Quality | Failure to meet admissibility criteria | Poor quality services |
16 | Technical issue | Technical non-conformity | Delayed services |
17 | Other | Other defects | Missing services |
18 | - | - | Operational errors |
19 | - | - | Other various |
Indicator | Before Daily Challenge Tool | After Daily Challenge Tool |
---|---|---|
Mean Time to Repair (MTTR) | 5 h | 2 h |
Equipment Downtime (monthly average) | ~22 h | ~9 h |
Delivery Delays per Quarter | 3 cases | 0 cases |
Maintenance Costs per Month | ~EUR 3800 | ~EUR 2300 |
Recurrence of Non-Conformity on Same Equipment | 2 in 3 months | 0 in 6 months |
Criterion | Daily Challenge Tool | Six Sigma | ISO 9001/TQM |
---|---|---|---|
Main objective | Integrated, practical system to identify and correct non-conformities in material and information flows on deferred monitoring and daily operational use. | Reduce variation and defects in processes using statistical analysis and expert-led improvement projects, targeting both short-term and long-term continuous improvement. | Provide a comprehensive quality management framework ensuring consistent product/service quality and driving continuous improvement through documented policies and processes. |
Approach | Practical, collaborative, data-informed, action-oriented, designed for easy integration into daily routines and cross-departmental cooperation. | Data-driven, statistically based (DMAIC), requires specialized expertise and structured project management. | Standard-driven, policy-based system with formal requirements for documentation, audits, and management reviews. |
Tools used | -“Daily Challenge” sheet integrating Fishbone diagrams and prioritization matrices, applied in a simplified and systematic way for daily issue resolution. | SPC, control charts, root cause analysis, and other advanced statistical tools, typically led by trained Black/Green Belt practitioners. | Quality audits, Kaizen, quality manuals, and other systemic quality management tools embedded in organizational processes. |
Originality | Combines known problem solving tools into a unified, easy-to-use framework embedded in daily workflow, emphasizing operational simplicity and continuous learning. | Structured expert-driven problem solving with strong statistical rigor, addressing both operational and strategic improvements. | Broad framework focused on compliance and systematic quality management rather than specific problem solving techniques. |
Practical implementation | Easily embedded into operational routines with minimal training, accessible to a wide range of staff without requiring specialized certification. | Requires formal training and certification (Black/Green Belts), and involvement of experts for effective implementation. | Requires formal implementation and documentation and external certification; integration into organizational governance structures. |
Category | Case Study 1 | Case Study 2 |
---|---|---|
Immediate corrective actions | Immediate relabeling and design correction | Repair and recalibration of the affected equipment |
System/procedural adjustments | Software program adjustments | Updates to SOPs and maintenance plan |
Staff training | On-the-spot retraining | Staff training and implementation of real-time alerts |
Preventive measures | Introduction of label validation before printing | Integration of predictive maintenance practices |
Aspect | Daily Challenge Tool | 8D Method | ISO 9001 NC Handling | FMEA |
---|---|---|---|---|
Response Time (Case 1) | <1 day | 2–4 days | 2–4 days | Not applicable post-issue |
Response Time (Case 2) | <3 days | 5–7 days | ~1 week | Only useful preemptively |
Accessibility to Operators | High—operator-led analysis | Moderate—quality engineer-driven | Low—formalized audits | Low—Process flow coordinator |
Documentation Overhead | Low (1-pager format) | High | Medium | High |
Scalability Across Departments | High (simple language, visual tools) | Moderate | Moderate | Low |
Training Requirements | Minimal (visual and structured sheet) | High | Moderate | High |
Integration with Daily Routines | Seamless | Low | Low | Low |
Supports Both Simple and Complex Problems | Yes | Primarily complex | Mostly compliance-related | Mostly preventive |
Quantifiable Impact (Case 2) | Reduced downtime, costs, delays | Usually measured precisely | Often qualitative only | Not applicable post-event |
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© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
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Glevitzky, M.; Glevitzky, I.; Mucea-Ștef, P.; Popa, M. The “Daily Challenge” Tool: A Practical Approach for Managing Non-Conformities in Industry. Sustainability 2025, 17, 5918. https://doi.org/10.3390/su17135918
Glevitzky M, Glevitzky I, Mucea-Ștef P, Popa M. The “Daily Challenge” Tool: A Practical Approach for Managing Non-Conformities in Industry. Sustainability. 2025; 17(13):5918. https://doi.org/10.3390/su17135918
Chicago/Turabian StyleGlevitzky, Mirel, Ioana Glevitzky, Paul Mucea-Ștef, and Maria Popa. 2025. "The “Daily Challenge” Tool: A Practical Approach for Managing Non-Conformities in Industry" Sustainability 17, no. 13: 5918. https://doi.org/10.3390/su17135918
APA StyleGlevitzky, M., Glevitzky, I., Mucea-Ștef, P., & Popa, M. (2025). The “Daily Challenge” Tool: A Practical Approach for Managing Non-Conformities in Industry. Sustainability, 17(13), 5918. https://doi.org/10.3390/su17135918