# Concepts

- [Machine data](/en/concepts/understanding-machine-data.md): What machine data is, how it is recorded, and why context matters.
- [Data sources](/en/concepts/understanding-machine-data/data-sources.md): What data sources in manufacturing are and how ENLYZE captures machine data.
- [Variables & time series](/en/concepts/understanding-machine-data/variables-and-time-series.md): What variables and time series are and how ENLYZE records machine data.
- [Production context](/en/concepts/production-context.md): How order data gives meaning to machine data and what analyses this enables.
- [Downtimes](/en/concepts/downtimes.md): What downtimes mean in production and how ENLYZE detects and classifies them.
- [Detection](/en/concepts/downtimes/detection.md): How ENLYZE automatically detects downtimes from machine data.
- [Categories & assignment](/en/concepts/downtimes/categories-and-assignment.md): Downtime categories and how reasons are assigned to downtimes.
- [Performance](/en/concepts/performance.md): What performance means in the production context and how it is measured.
- [Measuring performance](/en/concepts/performance/measuring-performance.md): How production performance is measured and the performance factor is calculated.
- [Maximum Demonstrated Speed](/en/concepts/performance/maximum-demonstrated-speed.md): What Maximum Demonstrated Speed (MDS) is and how ENLYZE uses it as a performance reference.
- [OEE](/en/concepts/understanding-oee.md): OEE management with machine data to increase equipment effectiveness
- [The OEE concept](/en/concepts/understanding-oee/the-oee-concept.md): The concept of Overall Equipment Effectiveness.
- [Availability](/en/concepts/understanding-oee/availability.md): Losses due to equipment downtime
- [Performance](/en/concepts/understanding-oee/performance.md): Losses due to reduced production speeds
- [Defining maximum performance](/en/concepts/understanding-oee/performance/defining-maximum-performance.md): The correct definition of the performance reference
- [Maximum Demonstrated Speed](/en/concepts/understanding-oee/performance/maximum-demonstrated-speed.md): Reference metric for the performance factor in continuous manufacturing
- [Quality](/en/concepts/understanding-oee/quality.md): Losses due to scrap production
- [6 Big Losses](/en/concepts/understanding-oee/6-big-losses.md): Loss categories for systematic root cause analysis
- [Improving OEE](/en/concepts/understanding-oee/improving-oee.md): From theory to practice: Continuous improvement with a data-driven focus
- [Glossary](/en/concepts/glossary.md): Definitions of key terms used in ENLYZE and manufacturing data analysis.