FMEA

Revision as of 20:29, 5 April 2023

Abstract

The Failure Mode and Effect Analysis.

A tool used for analyzing how potential events can occur doe to failure within the company or project team. The elements analyzed with use of the FMEA tool, can be separated in a matrix and consists of failure events, how they can occur, why they occur and how the failure can be avoided. The different scenarios then get graded with regard to impact-fulness and chance of occurrence, the multiplied score is the used to rank each risk failure event according to their importunateness. The reason for the FMEA tool to have influence on the project management, is because the tool is strictly guiding the PM and his/her team to what topics to focus on in order to get a successful project result. The following report will include:

Introduction to the FMEA tool

In a world where failure makings are assessed to be increasingly important with growing expectations from customers, clients, managers, investors and organizations, the importance of projects initialized on precise estimations and assessments becomes the backbone of business. In this world, the risk assessments methodologies makes the main arguments for how the outcome of a project, system or strategy may be. Investing in a project without assessing the potential risks would be similar to walking out of the front door barefooted not knowing if it's going to rain, snow or be 45 degrees celcius. It is possible, but the outcome could be very unpleasant. This makes for the use of risk assessments and the FMEA methodology.

Invented to systematically test and analyze different ways in which a system can fail and with what following consequences that might occur. The tool was originally developed for military purpose in the 1950s but has become a more recognized failure mode assessment tool for the private industry. The FMEA tool is a datadriven brainstorm where to potential failures are listed and the consequences of the failures ranked for a clear overview of which elements to do damage control on or maybe change entirely. This makes a project manager or team able to improve their initial risk assessments ^[1]

What does the tool consists of

FMEA consists of a matrix with eight rows for a step-by-step approach. First row consists of the stages in the journey. If looking at an example as a flight journey, the different stages would be:

Greed customer in the airport -> receive luggage and print tickets -> ensure that the customer knows of where the plain leves from -> retrieve the ticket at the gate -> seat the customer on the plane -> serve food and beverages -> ensure that the plane lands safely -> retrieve the luggage to the customer.

After identifying all stages of the journey, the second step in the FMEA tool is to describe the potential failure mode for each state. Then the consequences for each failure is added, then the severity of impact, then potential cause, frequency of occurrence, then process controls/recovery actions and lastly the sum-score of the impact and frequency for the ranking of importance. Here is an example of how the FMEA matrix would look

This example shows how a FMEA could be visualized and importantly, how to fill the matrix it self. The only real change that one might want to add, could be an extra column with the score sum, in order to clearly identify the modes of at most importance.

How does the tool work

Before using the FMEA matrix, it is important for the project manager to clearly understand if his/hers project is a system, product or process. To get the most from the tool, it is however important to apply it in an early stage of a project, this could be in the initialization of the risk assessments of a project or particular part of the project. This means that what ever result made from the assessment can potentially help avoiding a potential failure, before it happens.

Limitations of the tool

The FMEA has some clear limitations. Firstly, when using the tool, the output is very much defined by the quality of the input. To get the absolut bedst from the FMEA, the project manager needs to gather a lot of information, data and experience. However, if the quality of the out put is not as important as the result of the ranking, then the FMEA might still be a genuinely good tool for a project manager to manage risks and potential risks.

Theory and purpose

The FMEA tool is considered a part of a risk assessment. The tool is considered a "what could happen" or "What would happen" situation assessment tool and is useful after gathering an overview of risks from I.e. a risk matrix assessment or similar tools. ^[2] The purpose of the tool is to avoid biased decisions based on limited analysis of dept or assumptions based assessments. The methodology consists of assessing each and every element of identified risks fully from the initial defined risks and trough to the absolute end of potential secondary impacts. This helps to create a more accurate assessment of the impact in particular the impact of a potential risk occurring with regard to the side effects and rebound effects depending on the particular usage. Furthermore, the tool does not exceed in assessing the probability of an instance occurring as this is out side the scope of the tool. This can however be assessed with a simulation approach, depending of the event of topic.

Application of the tool in practice

Application in general

The step by step approach of the FMEA tool can be considered more circular with regard to the general risk assessment of a project, system or service. In this application description, the tool will be considered in combination with a classic risk matrix used by many companies when assessing the impact and chance of occurrence of risks on projects.

Risk Matrix

The risk matrix consists of two axis. One tells the probability of occurrence and the other tells the magnitude of the impact when occurring. the x,y coordinates are then used for plotting the identified risks. Here is an example of how on could apply the risk matrix.

identifying the risks:

1. Misinformation given to customers
2. Fail to check in customers
3. Losing a customer's luggage
4. Fail to place luggage on the plane
5. Fail to leave on time (air port)
6. Fail to serve customers in flight
7. Damaging luggage
8. Fail to retrive luggage to customer

Placing risk in a risk matrix:

These placements would typically be allocated based on simple based decisions and even though they can be realistic at first glimt, the reality is typically much different. This makes for the benefit of using the FMEA tool.

FMEA and Risk Matrix

The application of the FMEA is useful for assessing the initial risk assessment from the Risk Matrix, and can be further investigated trough data quantitative or qualitative investigations depending on the particular element. Here is an example of how the FMEA tool is applied in combination with the Risk Matrix and its initial identified risks.

As seen, some of the initial rankings might have changed due to more thorough investigations and the result from the FMEA model can then be re applied to the Risk Matrix, as well as used for ranking the importance of addressing for each risk.

Application by PM on a project

The FMEA tool would be applied by a project manager when looking into new projects. The PM should then gather the most experienced team within the project team and maybe even some prominent stakeholders, in order to get as many failure modes as possible. Then the PM could prioritise due to different sets of focuses on the project result. For instance, if a particular stakeholder has highly important needs from what the project delivers, then the potential failure modes affecting those needs would become relevant to encounter. ^[3]

Alternative applications

On an existing project, then the Project Manager could use the FMEA as an evaluation tool for current as well as previous incidents. The important difference here is that the tool would now be used with a focus on solutions to the failure modes rather than a pinpointing of which failure modes to analyze.

Final notes

References

1. ↑ [http://www.innovation-portal.info/] Innovation Portal
2. ↑ [http://www.innovation-portal.info/] Innovation Portal
3. ↑ [http://asq.org/learn-about-quality/process-analysis- tools/overview/fmea.html/] General about FMEA