What Is FMEA? (Failure Mode and Effects Analysis)
FMEA (Failure Mode and Effects Analysis) is a structured, team-based method for identifying how a product or process can fail, evaluating the risk of each potential failure, and prioritizing actions to prevent or detect it before it reaches the customer.
What does FMEA stand for? (Full form)
FMEA stands for Failure Mode and Effects Analysis. A failure mode is the way something can fail; the effects are the consequences of that failure. The analysis rates each failure's risk and prioritizes what to fix first. You may also see it written as "FMECA" when a separate criticality analysis is added.
What is FMEA used for?
FMEA is used to catch potential failures early — while a design or process can still be changed cheaply — and to produce a documented, defensible record of how risk was assessed and reduced. In regulated industries such as automotive, it is also a customer requirement, typically following the AIAG-VDA standard.
Types of FMEA: DFMEA, PFMEA & MSR
There are three common types under the AIAG-VDA standard:
- Design FMEA (DFMEA) — failures in a product or component design.
- Process FMEA (PFMEA) — failures in a manufacturing or assembly process.
- FMEA-MSR — failures detected and handled by monitoring and system response during operation.
Not sure which to use? Compare DFMEA vs PFMEA.
How FMEA rates risk: S, O, D and Action Priority
Each potential failure is rated on three scales of 1–10 — Severity (S), Occurrence (O), and Detection (D). The current AIAG-VDA standard combines them into an Action Priority (High / Medium / Low), which replaced the older Risk Priority Number (RPN). See how to calculate FMEA Action Priority and the AIAG-VDA FMEA 7-step approach.
FMEA in quality, manufacturing & other industries
FMEA started in aerospace and the military and is now standard practice in automotive (under AIAG-VDA), medical devices, electronics and semiconductors, and general manufacturing. In quality management it supports failure prevention and continuous improvement, and it appears inside frameworks such as Six Sigma (DMAIC) and automotive APQP.
When should you use an FMEA?
Typically when you introduce a new product or process, make a significant design or process change, respond to recurring field or quality problems, or need to meet a new customer or regulatory requirement.
Frequently asked questions
- What does FMEA stand for?
- FMEA stands for Failure Mode and Effects Analysis. A failure mode is the way a product or process can fail; the effects are the consequences of that failure.
- What is FMEA in simple terms?
- It is a structured way for a team to ask three questions about a product or process: how could this fail, how bad would each failure be, and what should we do to prevent or detect it before it reaches the customer.
- What are the main types of FMEA?
- Design FMEA (DFMEA) for products, Process FMEA (PFMEA) for manufacturing and assembly processes, and the Supplemental FMEA for Monitoring & System Response (FMEA-MSR) for failures handled during operation.
- What is the difference between FMEA and FMECA?
- FMECA (Failure Mode, Effects, and Criticality Analysis) is an FMEA plus a criticality analysis that quantifies how critical each failure is. FMEA prioritizes risk with ratings such as Action Priority; FMECA adds a separate criticality ranking.
- Is FMEA part of Six Sigma or APQP?
- FMEA is used within both. In Six Sigma it supports the Analyze and Improve phases of DMAIC, and in automotive quality planning it is one of the APQP core tools, alongside SPC, MSA, and PPAP.
- Does QSA Hub help you create an FMEA?
- Yes. QSA Hub lets you author DFMEA, PFMEA, and FMEA-MSR on a visual canvas to the AIAG-VDA standard, computes Action Priority automatically, and exports to standard Excel formats.
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QSA Hub lets you author DFMEA, PFMEA, and FMEA-MSR on a visual canvas, computes Action Priority automatically from the AIAG-VDA tables, and exports to standard Excel formats. Free during beta.
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