The industrial photography captures high-tech machinery in a factory setting.

Maximising productivity is the golden ticket in the world of manufacturing, yet achieving it can seem like an elusive goal. Overall Equipment Effectiveness, or the OEE score, serves as a critical measure to unlock this potential by revealing how effectively machinery operates.

This article promises to guide you through understanding and enhancing your factory’s OEE, translating into tangible improvements on the shop floor. Discover efficiency with us – every percentage point counts!

Key Takeaways – Overall Equipment Effectiveness

  • OEE is a vital performance metric in the manufacturing industry, combining availability, performance and quality to measure equipment productivity.

  • Calculating OEE involves analysing actual run time against planned production time, actual output speed versus maximum speed, and the ratio of defect-free units to total produced.

  • The “Six Big Losses” – breakdowns, setup adjustments, small stops, reduced speed operation, process defects and start-up losses – are key inefficiencies to address for improved OEE.

  • Implementing Total Productive Maintenance (TPM) and addressing the “Six Big Losses” can significantly elevate a company’s manufacturing efficiency.

  • Continuous improvement strategies are essential for maximising OEE scores over time.

Understanding Overall Equipment Effectiveness (OEE): Definitions and Importance

A bustling factory filled with heavy machinery and industrial equipment.

Understanding the essence of Overall Equipment Effectiveness (OEE) is pivotal in manufacturing; it serves as a powerful performance metric that encapsulates the true productivity of machinery.

Grasping this concept is not just about learning its definition – it’s crucial for recognising its significance in driving operational excellence and competitive advantage within industrial settings.

Definition of Overall Equipment Effectiveness

Overall Equipment Effectiveness, often abbreviated as the OEE score, serves as a crucial performance metric in the manufacturing industry. It gauges how effectively a plant’s operations run compared to their highest potential during planned production times.

Simply put, it captures and quantifies the success of your equipment – how well machines are doing what they’re supposed to do without wastage or stoppages.

The calculation for this effectiveness hinges on multiplying three key factors: availability, performance and quality %. Each reflects an essential part of production processes – a trio that together determines whether you are making full use of the time and resources at your disposal.

An OEE performance score out of 100% is perfect production: producing only good parts, as fast as possible, with no downtime. This performance score gets straight to the point about where improvements can be made on your factory floor to enhance productivity and maintain competitive edge in today’s market.

Importance of OEE in Manufacturing

OEE, or Overall Equipment Effectiveness, is a critical metric in the manufacturing industry. It serves as a vital sign of production health, measuring how well equipment is utilised during planned production times.

Directors seeking to drive their operations towards peak performance will find the OEE score indispensable for shedding light on where and how processes might be falling short. Tracking this KPI enables managers to pinpoint production inefficiencies that could lead to costly downtime or quality issues.

Harnessing the full potential of OEE analysis translates into tangible benefits for any manufacturing facility focused on lean practices. A robust understanding of what is OEE in manufacturing also helps in identifying problematic areas such as machine reliability or process defects which can then be systematically addressed.

Effective monitoring and analysis of OEE data not only streamline operational workflows but also pave the way for strategic improvements, boosting overall productivity while maintaining high standards of product quality.

The Core Components of Overall Equipment Effectiveness (OEE)

A photo of machinery components in a bustling, well-lit factory.

At the heart of manufacturing efficiency lies the trinity of three OEE factors or components: a robust measure that the three components and collectively drives industry towards peak productivity. These elements dissect and analyse the intricate workings of machinery, pinpointing areas for enhancement to fortify overall operational health.

Availability: Measuring Equipment Downtime

Tracking equipment downtime meticulously gives us a clear picture of machine availability in manufacturing operations. It allows us to pinpoint where quality losses occur most frequently and direct our improvement efforts effectively.

As part of the broader overall equipment effectiveness (OEE) framework, understanding when and why machines are not available is essential for minimising idle time and maximising production output.

Reliable OEE monitoring hinges on data obtained straight from the equipment, negating any inaccuracies that manual recording can introduce. Emphasis must therefore be placed on automating this process for a more accurate reflection of downtime occurrences.

This focus enables timely decisions that drive increases in actual production efficiency, count efficiency ideal cycle time and in manufacturing productivity – paving the way to assess performance speed and actual production count efficiency next.

Performance: Assessing Speed and Efficiency

Performance, a core component of OEE, measures the speed and efficiency with which your machinery operates. It takes into account the ideal cycle time – the fastest maximum possible speed and maximum throughput rate at which your equipment can produce good parts.

Ensuring machinery runs at its peak performance level means more than simply clocking fast production times; it involves fine-tuning processes to maintain optimal output without sacrificing quality.

This aspect of OEE evaluation points directly to whether operations are on par with industry 4.0 standards, leveraging real-time data analytics and predictive models for continuous monitoring and optimisation.

Maximising machine performance requires a comprehensive understanding of how equipment interacts within manufacturing processes. Efficiency gaps often highlight underlying issues such as bottlenecks or minor stoppages that cumulatively lead to significant lag in throughput.

Directors should focus on harnessing advanced analytics and lean manufacturing techniques to pinpoint these inefficiencies. By accelerating corrective actions through Total Productive Maintenance (TPM) initiatives and condition monitoring systems, businesses empower their teams, reduce their unplanned maintenance downtime, and elevate overall efficiency equipment metrics in a highly competitive industrial environment.

Quality: Evaluating the Rate of Defects

Continuing from performance metrics, the quality score stands as the critical pillar in assessing Overall Equipment Effectiveness. It digs into the nuances of product integrity by scrutinising the rate of defects.

High-calibre manufacturing hinges on detecting and addressing these flaws swiftly. Each defective item signifies potential waste and impacts customer satisfaction, pressing the need for meticulous evaluation of production processes.

Employing Total Productive Maintenance (TPM) sharpens focus on this aspect, aiming to drive down defect rates to elevate OEE scores. Directors are tasked with analysing where and how defects arise -whether during initial machine setup or within operational workflows – and implementing strategies for their reduction.

This proactive approach ensures that end products meet rigorous standards consistently while aligning with core objectives such as asset management and process optimisations.

Calculating Overall Equipment Effectiveness (OEE): A Step-by-Step Guide

A busy industrial manufacturing floor with machines in motion.

Delving into the quantification of manufacturing efficiency, our step-by-step guide demystifies the process of measuring manufacturing productivity by calculating Overall Equipment Effectiveness. This critical measurement measuring manufacturing productivity not only captures true production capacity but also unveils opportunities for substantive improvement across your operations.

The Overall Equipment Effectiveness (OEE) Formula Explained

Understanding the OEE formula is crucial for any manufacturing director aiming to track improvements optimise equipment productivity. At its core, this straightforward yet powerful equation considers three essential factors: Availability, Quality, and Performance.

To calculate Overall Equipment Effectiveness (OEE), you simply multiply these three elements – Availability reflects the ratio of actual run time versus planned production, truly productive manufacturing time and ideal cycle time; Quality measures the proportion of good parts produced productive manufacturing time as opposed to total parts made truly productive manufacturing time, ideal cycle time and planned production time; and Performance assesses whether your operation speeds align with theoretical maximum speeds.

Applying this equation allows directors to pinpoint where issues might be lurking in their processes. For instance, if Availability is low, it signals that machine downtime is a pressing issue.

Should the Quality score take a hit, then it’s likely there are defects needing attention. And when the Performance score dips below par, it suggests machines aren’t running as fast or smoothly as they should be.

In turn, leveraging this knowledge enables informed decisions on maintenance schedules and process improvements – key actions that drive an upward trajectory in productivity metrics.

Preferred Calculation Examples

Calculating OEE effectively can pinpoint areas for improvement and guide decision-making. It helps directors understand the intricacy of manufacturing processes and the value of optimisation.

  • Break down the OEE formula into its three multiplying factors: Availability, Performance, and Quality. This ensures clarity in understanding how each individual component influences total equipment effectiveness.

  • Start with Availability calculation by dividing the actual productive time (minus planned and unplanned downtime) by the planned production time. This ratio gives insight into how often equipment is ready for use versus being idle or under maintenance.

  • Continue with Performance, which compares the actual output speed to the maximum possible output speed under optimal conditions. Derive this by dividing the total count of units produced by the total effective equipment performance standard.

  • Analyse Quality by assessing the good count (units without defects) against the total count produced. Calculate this by dividing the number of defect-free units by the total number of units coming off the production line.

  • Employ real-time data analysis through industrial IoT platforms to track these metrics accurately. Advanced sensors and edge computing systems can capture detailed performance data, which aids precise OEE calculations.

  • Use predictive analytics to anticipate machine behaviour and improve availability scores; this could involve automated alerts for preventive maintenance or identifying patterns that lead to decreased performance or quality.

  • Encourage key performance indicator benchmarking within teams to motivate continuous improvement. Comparative analysis against industry standards can provide a clearer picture on where your operation stands in terms of efficiency and productivity.

The “Six Big Losses” in Overall Equipment Effectiveness (OEE)

Manufacturing equipment in a factory setting showing the six big losses.

In the realm of manufacturing efficiency, grasping the concept of the “Six Big Losses” is paramount for pinpointing where OEE falters. These losses serve as a magnifying glass to highlight inefficiencies and provide pathways to elevate equipment effectiveness without leaving any stone unturned.

Breakdowns and Equipment Failures

Machine breakdowns significantly slow cycles and productivity losses hinder Overall Equipment Effectiveness in the manufacturing industry. These unexpected outages not only slow cycles, stall production which lead to costly downtime as repairs are carried out.

Swift identification of equipment failures is crucial; hence the integration of a real time production target in-time data collection from machinery plays a vital role. This practice allows for immediate response and minimises impact on production schedules.

Variability among machine subcomponents can unpredictably affect OEE, leading to potential malfunctions if not managed properly. Utilising predictive maintenance strategies based on machine learning algorithms helps preempt these issues.

Addressing breakdowns promptly ensures that subsequent processes, like setup and adjustments, continue seamlessly without extended interruptions.

Setup and Adjustments

Moving beyond unexpected breakdowns, setup and adjustments represent a critical stage in equipment management that demands meticulous attention. Proper setting up planned maintenance and fine-tuning of machinery are key factors in avoiding production delays and ensuring seamless operation perfect production throughout.

Directors must oversee that teams follow standardised procedures for setups, aiming to minimise machine downtime during changeovers. This proactive approach allows for swift transitions between product runs, enhancing the availability component of OEE.

To keep machines running at peak performance, frequent inspections and recalibrations are essential. Tailoring settings to match specific job requirements ensures not only high-quality output but also adherence to scheduled downtime plans.

By integrating automated data collection from your equipment into this process, you empower a more accurate analysis of setup efficiency – laying the groundwork for focused improvements through Total Productive Maintenance (TPM) strategies.

Small Stops and Idling

Small stops and idling often slip under the radar, but they are critical factors that can significantly dent OEE scores. These momentary pauses in the production process might seem insignificant on their own – a machine jams for a minute here, an operator takes extra seconds there to align materials – yet, collectively, they can lead to considerable amounts of lost production time.

Directors must scrutinise these small inefficiencies as addressing them could unlock notable improvements in equipment productivity and performance.

To effectively combat small stops and idling, it’s essential to establish clear operational procedures and ensure employees are adequately trained. Monitoring systems should be put in place to capture real-time data on equipment status; this information enables swift responses to any emerging issues.

By cultivating a proactive approach towards these seemingly minor interruptions, manufacturers stand to enhance both the reliability of their machinery and the rhythm of their production flows.

Reduced Speed Operations

Running machinery at speeds lower than their optimal capacity is a common contributor to lost productivity. This issue, referred to as ‘Reduced Speed Operations‘, directly impacts the Performance factor within your Overall Equipment Effectiveness (OEE) metrics.

Let’s consider that equipment designed to churn out 100 units per hour producing only 80; this indicates an immediate opportunity for efficiency gains. Such slowdowns may not cause visible downtime, but they do reduce throughput and can point towards underlying issues such as poor maintenance practices or operator inefficiency.

Addressing reduced speed operations requires a keen eye on processes and machinery behaviour. Regular performance checks against set benchmarks could reveal variances impacting output rates.

By tuning equipment operation closer to its design capabilities, you’ll boost overall system performance without compromising quality or increasing costs significantly – paving the way to optimising OEE results across the production floor.

Directors must recognise these subtler forms of operational loss as pivotal in striving toward manufacturing excellence – efficiency isn’t just about avoiding breakdowns; it’s also maximising every minute of run time.

Process Defects and Rework

Process defects and rework pose significant challenges in maintaining high OEE, demanding immediate attention from manufacturing directors. Every product that fails to meet quality standards or needs rework subtracts from the valuable measure of Overall Equipment Effectiveness within your operations.

It’s not just about detecting these issues; it’s pivotal to implement strategies such as Total Productive Maintenance (TPM) to rectify them, enhancing both productivity and efficiency across your production floor.

A robust OEE improvement programme can pinpoint where defects are occurring and reveal why rework is necessary, guiding you towards actionable improvements. Leveraging Six Sigma methodologies or implementing advanced data analysis through IoT technologies can systematically reduce these costly inefficiencies.

By prioritising this aspect of OEE, organisations take a proactive stance against waste, ensuring that every process step adds value to the end product. Next up is evaluating how startup losses and yield impact overall equipment effectiveness.

Startup Losses and Yield

Startup losses directly affect the yield in manufacturing, potentially leading to a substantial decrease in productivity. These losses often stem from various challenges such three factors such as machine malfunctions or delays during setup and adjustments.

Having materials missing or operations team members unavailable can exacerbate these issues, further hindering the startup process. It’s crucial for directors to acknowledge that minimising these disruptive factors is essential to maintaining high efficiency.

Implementing Total Productive Maintenance (TPM) alongside consistent OEE monitoring helps to pinpoint where startup inefficiencies are occurring. This approach involves automatic data collection from machines, which ensures accurate tracking of any up to planned production time, delays or stoppages from the get-go to planned production time.

Addressing root causes through focused improvement tactics not only reduces startup losses but also bolsters overall equipment performance – an integral move towards optimising yield and enhancing productivity across your operations.

Strategies for Improving Overall Equipment Effectiveness (OEE)

To elevate your manufacturing operation’s efficiency and output, exploring a range of targeted strategies for enhancing OEE is crucial – delve deeper to discover how these methods can revolutionise productivity.

Implementing Total Productive Maintenance (TPM)

Total Productive Maintenance (TPM) plays a pivotal role in amplifying OEE, ensuring that every aspect of equipment performance contributes positively to overall manufacturing efficiency.

It focuses on proactive and preventive maintenance to keep equipment in top operating condition. TPM empowers operators to take ownership of their machinery, with a structured approach to identifying and eliminating waste, downtimes, and defects.

To put TPM into practice effectively, manufacturers integrate it with cutting-edge Industrial IoT technologies. This combination provides deep insights through advanced analytics while streamlining processes via cloud-based solutions.

Regular training ensures teams are skilled at using data-driven strategies for continuous improvement, leading to higher quality production without compromising safety or overburdening resources.

Addressing the “Six Big Losses”

Addressing the “Six Big Losses” in your manufacturing process can unlock significant improvements in productivity. It involves a strategic approach to identify and mitigate inefficiencies that hamper equipment effectiveness.

  • Tackle equipment breakdowns head-on by establishing a robust maintenance schedule. Regularly servicing machines prevents unexpected failures and keeps production running smoothly.

  • Minimise setup and adjustment time through efficient workflow design. Standardising procedures allows for quicker changeovers, reducing downtime between production runs.

  • Combat idling and minor stoppages by training staff to quickly resolve small issues. Empowering operators to fix minor problems maintains the flow of operations without significant pauses.

  • Increase operating speed by regularly reviewing and optimising machine settings. Ensuring that each piece of equipment runs at its ideal pace enhances overall throughput.

  • Reduce process defects with continuous quality control checks. Implementing real-time monitoring systems helps catch errors early, decreasing the need for rework.

  • Improve yield during start-ups by refining the ramp-up process. Analysing data from previous startups provides insights into achieving optimal efficiency faster.

Continuous Improvement and OEE

Continuous improvement in OEE is not a one-off goal; it’s a relentless pursuit that integrates Total Productive Maintenance (TPM) and worker engagement. As directors, you understand the importance of honing every aspect of your operation.

To boost your OEE figures, involve your teams in small group activities focused on enhancing equipment effectiveness. Encourage them to dissect processes, identify inefficiencies, and propose solutions that can be tested and adopted.

In this journey towards optimal performance, every machine cycle counts. Track progress with precise metrics to know where you stand against industry benchmarks. Utilise tools like real-time dashboards and internet of things (IoT) technologies to gain instant insights into machine performance.

Leverage these data points for making informed decisions that drive your efficiency upward while setting new standards for manufacturing excellence. Now let’s explore how maintaining high levels of OEE translates into tangible benefits for your manufacturing operations.

Benefits of High Overall Equipment Effectiveness (OEE) in Manufacturing

Elevating OEE scores translates to significant enhancements across the factory floor, heralding a new era of heightened productivity and operational excellence. Manufacturers who master OEE score metrics can expect streamlined processes, where cost efficiencies align with superior product standards to meet – and indeed exceed – customer expectations.

Cost Savings and Reduced Waste

Harnessing the full potential of OEE can unlock substantial cost savings, streamline manufacturing processes, and dramatically cut waste. Effective OEE strategies lead to a noticeable reduction in downtime and maintenance expenditures while optimising energy usage.

This holistic approach pinpoints ineffective areas that need improvement, preventing unnecessary down production time and costs associated with defects and rework. Manufacturers who embrace this methodology often see a direct impact on their bottom line, as finesse in operations translates into significant financial benefits.

Minimising waste goes hand-in-hand with these cost-saving measures. An in-depth focus on improving OEE ensures that every aspect of the manufacturing process is scrutinised for efficiency gains.

For instance, automated data collection from machinery minimises human error and contributes to more accurate waste identification and elimination efforts. By setting OEE as a key performance indicator alongside lean manufacturing techniques, companies not only enhance productivity but also foster a culture of continuous improvement where reducing waste becomes an inherent business practice.

Improved Productivity and Efficiency

Moving from cost savings and reduced waste, elevating productivity and efficiency becomes the next focal point. High OEE scores are indicative of a well-oiled manufacturing process where equipment reliability is maximised, time is efficiently used, and production rates soar.

This translates into faster turnaround times for product delivery without compromising on quality, giving companies a sharp competitive edge.

Manufacturers who implement strategies to enhance OEE can expect their operations to run smoother with fewer interruptions. Leveraging data-driven insights allows for pinpointing exactly where improvements are needed – whether it’s reducing minor stops or speeding up adjustments.

Sustained efficiency not only bolsters throughput but also empowers the workforce by providing them with reliable tools that aid in meeting production goals effectively.

Enhanced Product Quality and Customer Satisfaction

Building on the strides made in productivity and efficiency, enhancing product quality stands as a central goal. High OEE scores often translate into superior product output, reflecting fewer defects and consistent performance that meet or surpass customer expectations.

This direct correlation spotlights the importance of OEE as a comprehensive metric for benchmarking and catalysing improvements.

Attention to the minutiae of OEE can yield significant gains in customer satisfaction; satisfied customers are likely to become repeat buyers and even brand advocates. Manufacturers who harness OEE insights drive continuous improvement across their equipment’s lifecycle.

The integration of cutting-edge tools such as Industrial IoT technology, advanced analytics, and AI enhances real-time monitoring – ensuring every product leaving the line represents your commitment to excellence.

Challenges in Improving Overall Equipment Effectiveness (OEE)

Improving Overall Equipment Effectiveness (OEE) is essential for manufacturing success, yet it comes with a complex set of challenges that require astute attention and strategic management.

From overcoming resistance to change in organisational culture to integrating advanced technologies for accurate data collection, the path to enhanced OEE demands thorough understanding and deliberate action.

Identifying and Overcoming Common Obstacles

Manufacturers often face hurdles with OEE due to issues like limited data access and inconsistencies in data collection. These challenges stem from a mix of technical drawbacks and organisational culture barriers, perhaps accentuated by a resistance to change.

A director must look at these as opportunities for refinement rather than setbacks. Addressing such obstacles head-on involves fostering a culture where every production team member understands the importance of OEE metrics and their role in the larger picture of manufacturing success.

To propel OEE forward, directors should leverage technological solutions that streamline automatic data capture straight from equipment – supporting both accuracy and immediacy in reporting.

The right software can prove invaluable here, enabling insights into system performance while simplifying calculation complexities. Moreover, integrating robust maintenance strategies through TPM can transform potential disruptions into calculated enhancements for machine lifecycle management.

Directors hold the reins to drive cultural shift towards accepting analytics-driven decision-making, nurturing an environment where continuous improvement becomes second nature within their organisations.

Balancing Maintenance with Production

Facing the challenges of boosting production efficiency, OEE presents an opportunity for discrete manufacturers to strike a strategic balance between regular maintenance and production demands. Prioritising this equilibrium ensures that machinery operates at peak performance without hampering the output rate.

Effective scheduling becomes key, with downtime for maintenance planned during periods stable production that minimise disruption to the manufacturing process. This approach not only maximises equipment availability to planned production time but also allows for flexibility in responding rapidly to unforeseen production needs.

Embracing Total Productive Maintenance (TPM) offers a structured path towards aligning maintenance goals with operational targets, fostering an environment where small group activities drive continuous improvement in OEE.

Directors will find value in integrating these TPM principles into their daily operations, thereby enhancing overall productivity while maintaining equipment resilience and longevity.

This seamless integration positions the enterprise for sustained success by ensuring both equipment health and consistent production delivery are kept front and centre in operational strategies.

Exploring the cutting edge of OEE measurement, manufacturers are harnessing the power of advanced technologies to gain granular insights and streamline their operations. From real-time data analytics on the factory floor to sophisticated AI-driven predictive maintenance models, innovation in this field is revolutionising how businesses approach equipment effectiveness and operational excellence.

Technological Advances in OEE Tracking

Modern manufacturing facilities are harnessing the latest technologies to revolutionise OEE tracking. The integration of Industrial Internet of Things (IIoT) devices on factory floors allows for real-time data collection and monitoring, pushing the boundaries of what was previously possible in equipment effectiveness management.

This seamless stream of information equips decision-makers with profound insights into their operations, enabling quicker response times and more informed strategies toward maintaining peak machinery performance.

These advances go hand-in-hand with powerful analytical tools – systems designed specifically to decipher vast quantities of data from connected devices.

They provide a panoramic view of ongoing processes, predicting maintenance needs before they become critical issues while tailoring solutions that fit precise operational frameworks.

Such sophistication in OEE tracking is not only improving response rates but also fostering a proactive culture where continuous improvement becomes the norm across different industries.

The Role of Manufacturing Intelligence

Manufacturing intelligence harnesses the power of advanced analytics and real-time data to elevate OEE. It transforms raw performance figures into actionable insights, enabling directors to make informed decisions swiftly.

Through robust platforms such as cloud services and IoT devices, factories become equipped with a continuous feed of information. This level of connectivity helps pinpoint inefficiencies and drive improvements across all production stages.

Intelligent systems lead to better equipment management by predicting maintenance needs before breakdowns occur. They use computer vision and autoencoders for precise monitoring, ensuring every component operates at peak efficiency.

With these sophisticated technologies, manufacturing processes evolve from reactive to proactive fortification against operational setbacks. The next section will explore the conclusion: The Path to Optimal Manufacturing Efficiency, where we delve into integrating these strategies for maximum impact on the manufacturing floor.

Conclusion: The Path to Optimal Manufacturing Efficiency

In the quest for superior manufacturing prowess, mastering OEE stands as a cornerstone. It unlocks the door to enhanced productivity, quality, and ultimately profitability. Companies that harness this powerful metric can steer towards excellence with precision and confidence.

Elevating OEE is not just an operational necessity; it’s a strategic imperative in today’s competitive landscape. Embrace this guide as your compass to navigate the complexities of manufacturing efficiency, ensuring every piece of equipment works at its best for you.

FAQs – Overall Equipment Effectiveness

1. What does OEE stand for in manufacturing?

OEE stands for Overall Equipment Effectiveness, a benchmarking measure that helps you understand how well your manufacturing equipment is performing.

TEEP, or Total Effective Equipment Performance, is broader than the OEE calculation as it considers all time your equipment could be running, showing you the bigger picture of total count of potential production capacity.

3. Can cloud platforms affect my factory’s OEE scores?

Yes, using cloud platforms can improve real-time analysis and visualisation of data which helps with quicker maintenance and repair decisions; this can positively impact your OEE scores.

4. In what ways do Kaizen events contribute to improving OEE?

Kaizen events encourage continuous improvement through collaboration and problem-solving amongst employees, aiming to reduce waste and increase efficiency which directly boosts OEE.

5. Will implementing IoT devices change my approach to measuring OEE?

The Internet of Things (IoT) allows for sensitive monitoring of equipment lifecycles in real-time, providing accurate data that refines how you measure and optimise your factory’s OEE.