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The three Rs, the waste management hierarchy: reduce, reuse, and recycle; The three Rs, consumer remedies under Australian Consumer Law when consumer guarantees of goods are not satisfied: refund, replace, and repair; The three Rs (animal research), principles for ethical use of animals in testing: replacement, reduction, refinement
Package principles also includes software package metrics, which help to quantify the dependency structure, giving different and/or more precise insights into the overall structure of classes and packages.
Composition over inheritance (or composite reuse principle) in object-oriented programming (OOP) is the principle that classes should favor polymorphic behavior and code reuse by their composition (by containing instances of other classes that implement the desired functionality) over inheritance from a base or parent class. [2]
Code reuse is the practice of using existing source code to develop software instead of writing new code. Software reuse is a broader term that implies using any existing software asset to develop software instead of developing it again. [1] [2]: 7 An asset that is relatively easy to reuse and offers significant value is considered highly ...
An asset that is easy to reuse and provides utility is considered to have high reusability. A related concept, leverage involves modifying an existing asset to meet system requirements. [1] The ability to reuse can be viewed as the ability to build larger things from smaller parts, and to identify commonality among the parts.
Reuse is the action or practice of using an item, whether for its original purpose (conventional reuse) or to fulfill a different function (creative reuse or repurposing). It should be distinguished from recycling , which is the breaking down of used items to make raw materials for the manufacture of new products.
Carbon Dioxide Equivalent (CO 2 e ) – the unit used to measure the impacts of releasing (or avoiding the release of) the seven different greenhouse gases; it is obtained by multiplying the mass of the greenhouse gas by its global warming potential. For example, this would be 21 for methane and 310 for nitrous oxide.
Downcycling is the reuse of materials into lesser products. For example, a plastic computer case could be downcycled into a plastic cup, which then becomes a park bench, etc.; this eventually leads to plastic waste.