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Information about Robustness

Robustness is the quality of being able to withstand stresses, pressures, or changes in procedure or circumstance. A system, organism or design may be said to be "robust" if it is capable of coping well with variations (sometimes unpredictable variations) in its operating environment with minimal damage, alteration or loss of functionality.

Engineering design

Robust design generally means that the design is capable of functioning correctly, (or at the very minimum, not failing catastrophically) under a great many conditions. Also, it means that tolerances can be looser because "it can only be built one way".

Computer engineering

In computing terms, robustness is the resilience of the system under stress or when confronted with an invalid input. It is the ability of the software system to maintain function even with the changes in internal structure or external environment. For example, an operating system is considered robust if it operates correctly when it is starved of memory or disk storage space, or when confronted with an application that has bugs or is behaving in an "illegal" manner, such as trying to access memory or storage belonging to other tasks in a multitasking system.

Robust, Over the top, can withstand enourmous amounts of stress and keep going as per usual

Telecommunications

Closely related to its computer engineering meaning, in telecommunications it refers to the ability of a signal to get from the transmitter to the receiver without an unacceptable loss of quality. It especially refers to digital technologies, where a signal that is not robust enough will result in a high bit error rate, and eventually a failure to decode the received digital signal. A robust design usually has a high signal-to-noise ratio, though it may be designed to overcome just such a problem of low SNR.

Digital Rights Management

In the case of Digital Rights Management, robustness refers to a solutions ability to resist attacks that seek to unlock the content it is securing. Most DRM systems will have a level of robustness refined as part of their governing Compliance and Robustness regime.

Control systems

Main article: Robust control
Central to the development of feedback control theory has been the notion of uncertainty. This arises in two forms: (a) discrepancy between the physical plant and the mathematical model used for controller design, and (b) unmeasured noises and disturbances that act on the physical plant. Feedback is used to desensitise the control system to the effect of both these types of uncertainty. Care must be exercised, however, as feedback in the presence of an uncertain plant can easily lead to instability if due consideration is not given to the way in which this uncertainty modifies the system behaviour. This is the essence of robust control theory.

Other studies

Genetics

Mutational robustness describes the extent to which an organism's phenotype remains constant in spite of mutation.

Statistics

A robust statistical test is one that performs well even if its assumptions are violated by the true model from which the data were generated.

Economics

In economics, "robustness" defines the ability of a financial trading system to remain effective under different markets and different market conditions.

Decision making

A robust decision is a decision that is as immune to uncertainty as is possible and looks good to all constiuients long after it is made.
In engineering, tolerance is the permissible limit of variation in 1) a physical dimension, 2) a measured value or property of a material, manufactured object, system, or service, or 3) other measured values (such as temperature, humidity, etc).
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computer is a machine which manipulates data according to a list of instructions.

Computers take numerous physical forms. The first devices that resemble modern computers date to the mid-20th century (around 1940 - 1941), although the computer concept and various machines
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For the band, see Resilience (band).


Resilience generally means the ability to recover from (or to resist being affected by) some shock, insult, or disturbance. However, it is used quite differently in different fields.
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An operating system (OS) is the software that manages the sharing of the resources of a computer. An operating system processes system data and user input, and responds by allocating and managing tasks and internal system resources as a service to users and programs of the
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Ram, ram, or RAM as a non-acronymic word

As a non-acronymic word Ram, ram, or RAM may refer to:

Animals

  • Sheep, an uncastrated male of which is called a ram
  • Ram cichlid, a species of freshwater fish endemic to Colombia and Venezuela

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Disk storage is a general category of a computer storage mechanisms, in which data is recorded on planar, round and rotating surfaces (disks, discs, or platters). A disk drive is a peripheral device used to collect information from.
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Application software is a subclass of computer software that employs the capabilities of a computer directly and thoroughly to a task that the user wishes to perform. This should be contrasted with system software which is involved in integrating a computer's various capabilities,
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A software bug (or just "bug") is an error, flaw, mistake, failure, or fault in a computer program that prevents it from behaving as intended (e.g., producing an incorrect result).
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An Illegal Opcode, also called an Undocumented Instruction, is an instruction to a CPU that is not mentioned in any official documentation released by the CPU's designer or manufacturer, which nevertheless has an effect.
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Multitasking may refer to any of the following:
  • Computer multitasking - the apparent simultaneous performance of two or more tasks by a computer's central processing unit.

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Telecommunication is the transmission of signals over a distance for the purpose of communication. In modern times, this process typically involves the sending of electromagnetic waves by electronic transmitters, but in earlier times telecommunication may have involved the use of
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Signal, signals, signaling, or signalling may refer to:

Scientific concepts
  • Signal (electrical engineering), a varying quantity that can carry information.

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transmitter (sometimes abbreviated XMTR) is an electronic device which with the aid of an antenna propagates an electromagnetic signal such as radio, television, or other telecommunications.
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Receiver may mean:

Communication

  • The listening device part of a telephone
  • The handset containing that device
  • Receiver (radio), an electronic device that converts a radio signal from a transmitter into useful information

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The abbreviation QOS could refer to one of several things:
  • Quality of service (QoS), a measure of the reliability of a computer network or telephone service
  • Quarterdeck Office Systems, a software company that is now part of Symantec
  • Queen of the South F.C.

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A digital system is one that uses discrete values (often electrical voltages), representing numbers or non-numeric symbols such as letters or icons, for input, processing, transmission, storage, or display, rather than a continuous range of values (ie, as in an analog system).
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In telecommunication, an error ratio is the ratio of the number of bits, elements, characters, or blocks incorrectly received to the total number of bits, elements, characters, or blocks sent during a specified time interval.
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DECODE is a single-row function in Oracle, which applies conditional logic to SQL queries. This function works very much like an IF-THEN-ELSE statement.

Syntax: DECODE (expression1, value1, return_value1, value2, return_value2, ...
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The term digital signal is used to refer to more than one concept. It can refer to discrete-time signals that are digitized, or to the waveform signals in a digital system.
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Signal-to-noise ratio (often abbreviated SNR or S/N) is an electrical engineering concept defined as the ratio of a signal power to the noise power corrupting the signal.
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Digital rights management (DRM) is an umbrella term that refers to access control technologies used by publishers and other copyright holders to limit usage of digital media or devices.
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Sometimes abbreviated as C&R, this term refers to the legal structure or regime underlying a Digital Rights Management (DRM) system. In many cases, the C&R regime for a given DRM is provided by the same company that sells the DRM solution.
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Robust control is a branch of control theory that explicitly deals with uncertainty in its approach to controller design. Controllers designed using robust control methods tend to be able to cope with small differences between the true system and the nominal model used for
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For control theory in psychology and sociology, see .


Control theory is an interdisciplinary branch of engineering and mathematics, that deals with the behavior of dynamical systems. The desired output of a system is called the reference.
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mathematical model is an abstract model that uses mathematical language to describe the behaviour of a system. Mathematical models are used particularly in the natural sciences and engineering disciplines (such as physics, biology, and electrical engineering) but also in the social
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Controller can refer to several things:
  • Microcontroller, a computing device
  • Memory controller, logic which manages the flow of data in a computer system
  • Game controller, a device used for video games

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In science, and especially in physics and telecommunication, noise is fluctuations in and the addition of external factors to the stream of target information (signal) being received at a detector.
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Please help recruit one or [ improve this article] yourself. See the talk page for details.
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Instability in systems is generally characterized by some of the outputs or internal states growing without bounds. Not all systems that are not stable are unstable; systems can also be marginally stable or exhibit limit cycle behavior.
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Mutational robustness describes the extent to which an organism's phenotype remains constant in spite of mutation. Selection can directly induce the evolution of mutational robustness only when mutation rates are high and population sizes are large.
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