Editing Feedback (section)

===Software===
Feedback loops provide generic mechanisms for controlling the running, maintenance, and evolution of software and computing systems.<ref name="Giese-at-al-engineering-saso-systems">
{{Cite news
|author1=H. Giese |author2=Y. Brun |author3=J. D. M. Serugendo |author4=C. Gacek |author5=H. Kienle |author6=H. Müller |author7=M. Pezzè |author8=M. Shaw |title=Engineering self-adaptive and self-managing systems
|year= 2009
|publisher=Springer-Verlag
}}</ref> Feedback-loops are important models in the engineering of adaptive software, as they define the behaviour of the interactions among the control elements over the adaptation process, to guarantee system properties at run-time. Feedback loops and foundations of control theory have been successfully applied to computing systems.<ref name=Hellerstein-feedbackloop-book>
{{Cite book
|author1=J. L. Hellerstein |author2=Y. Diao |author3=S. Parekh |author4=D. M. Tilbury|author4-link= Dawn Tilbury |title=Feedback Control of Computing Systems
|year= 2004
|publisher=John Wiley & Sons
}}
</ref> In particular, they have been applied to the development of products such as [[IBM Db2]] and [[IBM Tivoli]]. From a software perspective, the [[autonomic computing|autonomic]] (MAPE, monitor analyze plan execute) loop proposed by researchers of IBM is another valuable contribution to the application of feedback loops to the control of dynamic properties and the design and evolution of autonomic software systems.<ref name="muller-autonomic-computing">
{{Cite news
|author1=J. O. Kephart |author2=D. M. Chess |title=The vision of autonomic computing
|year= 2003
}}</ref><ref name="autonomic-computing">
{{Cite news
|author1=H. A. Müller |author2=H. M. Kienle |author3=U. Stege |name-list-style=amp |title=Autonomic computing: Now you see it, now you don't—design and evolution of autonomic software systems
|year= 2009
}}</ref>

==== Software Development ====
{{Main|Software review}}

====User interface design====
{{Main|User interface design}}

Feedback is also a useful design principle for designing [[user interface]]s.