digplanet beta 1: Athena
Share digplanet:


Applied sciences






















Palazzo Ducale in Venice: capital # 28 in the porch, featuring Virtues and vices - In fidelitate nulli gero (Fidelity)

Fidelity is the quality of being faithful or loyal. Its original meaning regarded duty in a broader sense than the related concept of fealty. Both derive from the Latin word fidēlis, meaning "faithful or loyal".


In modern human relationships, the term can refer to sexual monogamy. In western culture this often means adherence to marriage vows, or of promises of exclusivity or monogamy, and an absence of adultery. However, some people do not equate fidelity in personal relationships with sexual or emotional monogamy. (For example, see polyamory and Open marriage.) Often, however, women in the works of Shakespeare are associated with it in a negative sense, such as "She is with little fidelity". For example, Bertram accuses Helena of having "little fidelity" in All's Well That Ends Well.


Fidelity also denotes how accurate a copy is to its source. For example, a worn gramophone record will have a lower fidelity than one in good condition, and a recording made by a low budget record company in the early 20th century is likely to have significantly less audio fidelity than a good modern recording. In the 1950s, the terms "high fidelity" or "hi-fi" were popularized for equipment and recordings which exhibited more accurate sound reproduction. The converse term "lo-fi", doesn't necessarily mean "low fidelity", rather that the production ethic aims for "gritty authenticity" over perfect production. Similarly in electronics, fidelity refers to the correspondence of the output signal to the input signal, rather than sound quality, as in the popular internet connection technology "Wi-Fi".

Scientific modelling and simulation[edit]

In the fields of scientific modelling and simulation, fidelity refers to the degree to which a model or simulation reproduces the state and behaviour of a real world object, feature or condition. Fidelity is therefore a measure of the realism of a model or simulation.[1] Simulation fidelity has also been described in the past as "degree of similarity".[2]

Program evaluation[edit]

In the field of program evaluation, the term fidelity denotes how closely a set of procedures were implemented as they were supposed to have been. For example, it's difficult to draw conclusions from a study about formative assessment in school classrooms if the teachers are not able or willing to follow the procedures they received in training.[3]


  1. ^ "SISO-REF-002-1999: Fidelity Implementation Study Group Report". 
  2. ^ Hays, R.; Singer, M. (1989). Simulation fidelity in training system design: Bridging the gap between reality and training. Springer-Verlag. 
  3. ^ O’Donnell, Carol (2008). "Defining, Conceptualizing, and Measuring Fidelity of Implementation and Its Relationship to Outcomes in K–12 Curriculum Intervention Research". Review of Educational Research 78 (1): 33–84. doi:10.3102/0034654307313793. Retrieved March 6, 2010. 

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Fidelity — Please support Wikipedia.
A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
415381 videos foundNext > 

Regina Spektor - "Fidelity" [Official Music Video]

2006 WMG Fidelity (Video) Regina's new album 'What We Saw from the Cheap Seats' is available now: http://smarturl.it/whatwesawitunesyt For more Regina: htt...

Regina Spektor - Fidelity

Fidelity AMV (Best Drama and Editor's Choice - Anime Boston 2013)

Gah, this is the first full project I've made in a loooong time. I've been constantly working on things, but I always drop them.This is going to be my first ...

Fidelity-Regina Spektor Lyrics Video (HD)

No ©copyright intended. © goes to Regina Spektor* Font: Annie Use Your Telescope dafont.com.

Jasmine Thompson - Fidelity (Lyrics)

Fidelity cover by 12 year old talent Jasmine Thompson.

Regina Spektor - Fidelity - Live In London [HD]

Regina Spektor perfoms Fidelity as part of her Far Tour, Live at the Hammersmith Apollo in London - December 4, 2009. Tags: Regina Spektor Fidelity Live In L...

Regina Spektor - "Fidelity" (Live In London)

2010 WMG Fidelity (Live In London) Directed by Adria Petty for East Pleasant Pictures Regina's new album 'What We Saw from the Cheap Seats' is available no...

Regina Spektor - Fidelity Lyrics

Hi! I HOPE YOU ENJOY IT! Please! Comment and rate!

Fidelity - AMV (Best Drama Anime Boston 2013)

Creator: http://www.youtube.com/user/Xophilarus Anime: http://bit.ly/O0cOBS Music: Lauren Aquilina - King Edwin McCain - I Could Not Ask For More Event: Anim...

FIDELITY - A Documentary about Cuba without Castro

"Fidelity" is a documentary by Alessandra Magnaghi & Ortensia Visconti, shot in Cuba in July 2006, when Fidel Castro disappeared from the political scene pas...

415381 videos foundNext > 

237058 news items

ETF Trends

Thu, 24 Apr 2014 05:33:45 -0700

The new BlackRock Diversified Income Portfolio, which will be roughly 70 percent invested in ETFs, will be available beginning May 1 exclusively to the roughly 14 million retail customers who have Fidelity brokerage accounts, the company said on Thursday.
Wall Street Journal (blog)
Thu, 24 Apr 2014 08:56:15 -0700

In Thursday's paper, we report that senior U.S. regulators analyzing the risks posed by large asset managers started peeking under the hood of Fidelity Investments in part because it owns a large brokerage. But how risky is that brokerage really? This ...

ETF Daily News

Tue, 22 Apr 2014 19:03:45 -0700

Those are opportunities that smaller buyers may never see. “We're now being viewed as a liquidity provider in the marketplace,” Ford O'Neil, who manages the $13.2 billion Fidelity Total Bond Fund (FTBFX) in Boston, said in a telephone interview last week.
Wall Street Journal (blog)
Mon, 21 Apr 2014 10:55:52 -0700

Several Fidelity mutual funds cut their positions in Yahoo Inc. in February, before Alibaba Group Holding Ltd. decided to start the process of listing on a U.S. stock exchange, according to the most recent data provided by Morningstar. Yahoo owns a 24 ...
Mon, 21 Apr 2014 09:52:30 -0700

BOSTON (Reuters) - Will Danoff, who runs Fidelity Investments' behemoth Contrafund, is frustrated by his lagging performance this year and is pruning his exposure to cloud software stocks that got clobbered recently in a swift and hard-hitting downturn.


Thu, 24 Apr 2014 06:52:30 -0700

These four basic parameters define everything that affects audio fidelity. As powerful as it is, there's no secret “magic” to sound, no unknown parameters that “science” hasn't yet learned to identify, as is sometimes claimed. The closer an audio ...

Florida Times-Union

Florida Times-Union
Wed, 23 Apr 2014 07:30:14 -0700

Update 6:10 a.m.- JEA spokeswoman Gerri Boyce told the Times-Union that power is expected to be restored at LPS and Fidelity by 8 a.m., the Yates Family YMCA by 10 a.m. and Everbank by noon. Boyce said JEA crews will search for a cause of the ...
Crane Data LLC
Wed, 23 Apr 2014 19:26:15 -0700

Fidelity Investments, the largest manager of money market mutual funds in the U.​S. and the world, released a comment letter in response to the SEC'​s request for feedback on its "Staff Analysis of Data and Academic Literature Related to Money Market ...

Oops, we seem to be having trouble contacting Twitter

Talk About Fidelity

You can talk about Fidelity with people all over the world in our discussions.

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!