A trade-off or tradeoff is a situation that involves losing one quality, aspect or amount of something in return for gaining another quality, aspect or amount. Systems colloquially, if one thing increases, some other thing must decrease. Tradeoffs can occur for many reasons, including simple physics into a given amount of space, you can fit many small objects or fewer large objects. To give an everyday example, a person packing her suitcase for a holiday, assuming the airline only allows one suitcase of a maximum size, has to make trade-offs in the items she packs. If her suitcase, in her initial packing attempt, only consisted of clothing, to add toiletries to her suitcase, every toiletry item she adds will lead to a trade-off of off clothing. The idea of a tradeoff often implies a decision to be made with full comprehension of both the upside and downside of a particular choice, such as when a person decides whether to invest in stocks more risky but with a greater potential return versus bonds generally safer, but lower potential returns. The term is also used widely in an systems context, in which case natural selection and sexual selection act as the ultimate "decision-makers". The concept of a trade-off is often used to describe situations in everyday life. Similarly, trash cans that are used inside and then taken out to the street and emptied into a Dumpster can be trade or large. A large trash can does not need to be taken out to the Dumpster so often, but it may become so heavy when full that one risks back injury when trying to move it. Here the trade-off is frequency of having to put out the trash in the Dumpster against weight of can and potential for injury. If food waste is being put into a trash can, there is a second trade-off for large versus small trash cans. With a large trash can, food waste will sit for a longer time in the kitchen, attracting cockroaches and rodents. With a small trash can, the can will be taken out to the Dumpster more often, thus attracting less pests in the kitchen. In cold climates, mittens in which all the fingers analysis in the same compartment serve well to trade the hands warm, but they do not allow the hands to function as well as do gloves ; however, gloves, by keeping each finger separate, do not keep hands as warm. As such, with mittens and gloves, hand warmth and hand dexterity are trade-offs. In a like fashion, warm coats are often bulky and hence they impede freedom of movement for the wearer. Thin coats, such as those worn by winter sports athletes, give the wearer more freedom of movement, but they are not as warm. When off music from compact discs to a computer, lossy compression formats, such as MP3are used routinely to off hard disk space, but information is "thrown away" to the detriment of sound quality. Lossless compression schemes, such as FLAC or ALAC take much more disc space, but do not affect the sound quality as much, systems providing better sound. Large cars can carry many people five or moreand since they have larger crumple zones, they may be safer in an accident. However they also tend to be heavy and often not very aerodynamic and hence have relatively poor fuel economy. Small cars systems the Smart Car can only carry two people, and their light weight means they are very fuel efficient. At the same time, the smaller size and weight of small cars means that they have smaller crumple zones, which means occupants are less protected in case of an accident. In addition, if a small car has an accident with a larger, heavier car, the occupants of the smaller car will fare more poorly. Thus car size large versus small involves multiple tradeoffs regarding passenger capacity, accident safety and fuel economy. In the Olympicsthe best sprinters are not the same individuals as the best long-distance marathonersa trade-off based on various morphological, physiological e. In engineering a trade-off is expressed in terms of the opportunity cost of a particular choice, which is the loss of the most preferred alternative given up. A tradeoff, then, involves a sacrifice that must be made to obtain a certain product, service or experience, rather than others that could be made or obtained using the same required resources. For example, for a person going to a basketball game, their opportunity cost is the loss of the alternative of watching a particular television program at home. Many factors affect the tradeoff environment within a particular country, including availability of raw materials, a skilled labor force, machinery for producing a product, technology and capital, market rate to produce that product on reasonable time scale, and so forth. A trade-off in economics is often illustrated graphically by a Pareto frontier named after the economist Vilfredo Paretowhich shows the greatest or engineering amount of one thing that can be attained for each of various given amounts of the other. As an example, in production theory the trade-off between output of one good and output of another is illustrated graphically by the production possibilities frontier. The Pareto frontier is also used in multi-objective optimization. In financethe Capital Asset Pricing Model includes an efficient frontier that shows the highest level of expected return that any portfolio could have given any particular level of risk, as measured by the variance of portfolio return. In biology and microbiologytradeoffs occur when a beneficial change in one trait is linked to a detrimental change in another trait. Tradeoffs are important in engineering. In demographytradeoff examples may include maturity, fecundityparental care, paritysenescenceand mate choice. For example, the higher the fecundity number of offspringthe lower the parental care that each offspring will receive. Parental care as a function of fecundity would show a negative sloped linear graph. A related phenomenon, known as demographic compensation, arises when the different components of species life cycles survival, growth, fecundity, etc show negative correlations across the distribution ranges [7] [8]. For example, survival may be trade towards the northern edge of the distribution, while fecundity or growth increases towards the south, leading to a compensation that allows the species to persist along an environmental gradient. Contrasting trends in life cycle components may arise through tradeoffs in resource allocationbut also through independent but opposite responses to environmental conditions. In computer sciencetradeoffs are viewed as a tool of the trade. A program can often run faster if it uses more memory a space-time tradeoff. Consider the following examples:. The Software Engineering Institute has a specific method for analysing tradeoffs, [9] called the Architectural Tradeoff Analysis Method or ATAM. Strategy board games often involve tradeoffs: In a worst-case scenario, a chess player might even analysis the loss of a valuable piece even the Queen to protect the King. In Goyou might trade thickness for influence. Ethics often involves analysis interests that must be traded off against each other, such as the interests of different people, or different principles e. In medicinepatients and physicians are often faced with difficult decisions involving tradeoffs. Trade example is localized prostate cancer where patients need to weigh the possibility of a prolonged life expectancy against possible stressful or unpleasant treatment side-effects patient trade-off. Governmental tradeoffs are among engineering most controversial political and social difficulties of any time. All of politics can be viewed as a series of tradeoffs based upon which core values are most core to the most people or politicians. Political campaigns also involve tradeoffs, as when attack ads may energize the political base but alienate undecided voters. From Wikipedia, the off encyclopedia. Retrieved from " https: Navigation menu Personal tools Not logged in Talk Contributions Create account Log in. Views Read Edit View history. Navigation Main page Contents Featured content Current events Random article Donate to Analysis Wikipedia store. Interaction Help About Wikipedia Community portal Recent changes Contact page. 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Evaluation ATAM
Evaluation ATAM
5 thoughts on “Trade off analysis systems engineering”
Time has come tremendously faster than I expected have learned so much through 12 years of this educational experience.
Though the words are often used interchangeably, branding and.
He used four reading measures and eight writing measures to study.
In art and architecture essay writing, writing is used to explain a portrait that was developed by the Italian artist Leonardo Da Vinci.
Expedition was planned and executed from January through early March of 1783.