Browse Definitions :
Definition

fudge factor

Contributor(s): Ivy Wigmore

A fudge factor is an element inserted into a calculation, formula or model to allow for error or uncertainty. Fudge factors are also used to make something congruent with an observed or desired result. The word fudge, in this context, means to be intentionally unclear or imprecise. 

Fudge factors are commonly used to include variables in a calculation when a precise quantity is unknown or when a variable is subject to unpredictable change. In project management, fudge factors are commonly used in time estimates. In calculating the duration of some phase of the project, for example, a project manager might add a fudge factor of 50 percent to the estimate of how long that phase should take. The addition is intended to make it possible to meet the deadline even if unforeseen events cause delays, as they often do.  

The extra allotment can also cause problems, however. Because people tend to use all available time for a deadline, a project phase that might have been completed in two weeks often ends up taking three. To avoid that situation, it's wise to be conservative in the use of fudge factors. 

Fudge factors are commonly used in the sciences to make a calculation or formula work, when it's considered that the other elements involved are correct. If an empirically observed phenomenon cannot be explained by a theory, for example, a fudge factor may be introduced to make the theory work. Despite the requirement that scientific research be objective, cognitive bias -- particularly confirmation bias -- can pose a risk to the validity of a study through the introduction of fudge factors. 

One of the most famous fudge factors of all time is Einstein's cosmological constant. The scientist added the constant to his general theory of relativity to make it conform to his belief that the universe was neither contracting or expanding but was static. The fudge factor provided a repulsive force that explained why the universe did not collapse upon itself. When it was discovered that the universe is in fact expanding, however, Einstein had to remove the cosmological constant from his theory.   

This was last updated in September 2017

Continue Reading About fudge factor

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

SearchSecurity

SearchHealthIT

  • Health IT (health information technology)

    Health IT (health information technology) is the area of IT involving the design, development, creation, use and maintenance of ...

  • fee-for-service (FFS)

    Fee-for-service (FFS) is a payment model in which doctors, hospitals, and medical practices charge separately for each service ...

  • biomedical informatics

    Biomedical informatics is the branch of health informatics that uses data to help clinicians, researchers and scientists improve ...

SearchDisasterRecovery

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

  • ransomware recovery

    Ransomware recovery is the process of resuming options following a cyberattack that demands payment in exchange for unlocking ...

  • natural disaster recovery

    Natural disaster recovery is the process of recovering data and resuming business operations following a natural disaster.

SearchStorage

  • RAID 5

    RAID 5 is a redundant array of independent disks configuration that uses disk striping with parity.

  • non-volatile storage (NVS)

    Non-volatile storage (NVS) is a broad collection of technologies and devices that do not require a continuous power supply to ...

  • petabyte

    A petabyte is a measure of memory or data storage capacity that is equal to 2 to the 50th power of bytes.

Close