Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Wikipedia.


(computer science)
The act of testing for compliance with a standard.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


The stage in the software life-cycle at the end of the development process where software is evaluated to ensure that it complies with the requirements.
This article is provided by FOLDOC - Free Online Dictionary of Computing (

blockchain validator

Also called a "blockchain verifier," validators are computers that maintain the blockchain's integrity by constantly computing the linkage from the first block to the last. There is generally an abbreviated version of the blockchain for this purpose that is much smaller than the full chain, which contains every transaction.

Validators for a public blockchain are maintained primarly by volunteers, who typically dedicate a computer to the process. There are thousands of validation nodes for a major blockchain such as Bitcoin or Ethereum. See blockchain and cryptographic hash function.


To prove something to be sound or logical. Also to certify conformance to an accepted standard. Contrast with verify.

For example, data entry validity checking determines whether the data make sense (numbers fall within a range, numeric data are all digits, etc.), but "validity" checking does not "verify" that the data are correct. Even if the check digit in a customer account number is determined to be a valid number, it may still be the wrong number for that individual. In practice, the terms "validate" and "verify" are used synonymously. See validity checking, check digit and HTML validator.

Residents of Everittstown, New Jersey would surely get a chuckle if this was their navigation system. Of course, if the error was ever reported, an updated DVD disc would solve the problem.

Always Mistakes
It's human nature to misspell, but surely this entry was not matched against a database of city names. Whereas the Everittstown example was 2006, this is from 2018.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
To avoid conflicts of interest, the validator should be objective; knowledgeable about the product being modeled, modeling standards of practice, industry practices and regulatory requirements; and not have an interest in the outcome of the validation. For example, model developers or users should not be validators.
If you create a validation rule using Whole Number, Decimal, Date, Time, or Text Length, the next step is to choose a comparison operator.
Solution Validation Centre engagements are managed by Equinix global solutions architects, a team of technology experts who take a consultative approach to address customers' technology challenges and recommend customised, reliable solutions.
Process validation ensures that a manufacturing process for any device or component will run reliably, continuously producing parts to the specifications required by the original equipment manufacturer customer that commissioned the product.
Application ref: R/2013/0362/FF Validation Date: May 20 Address: 3 Boulby Drive, Loftus TS13 4JN Proposal: Demolition of existing garage and replace with single storey detached building.
The research in working with persons with Alzheimer's has emerged during the last 20 years since validation (1993) provided an alternative perspective from modalities provided during the 1990s.
is the provider of an innovative software platform designed to provide the foundation for compliance-based validation activities in Life Sciences companies.
The steps required for the validation of a computer-assisted system can vary from system to system.
The main purpose of a validation is to determine how well the score differentiates between good and bad accounts.
The bottom line is that within the context of the cGMP the quality of products is frequently reliant on test methods and the way you ensure a method is working (i.e., fit for purpose) is to engage in a series of experiments called a validation.

Full browser ?