The ReverseAndReengineeringTaxonomy defines *reengineering* as:

_the examination and alteration of a subject system to reconstitute it in a new form and the subsequent implementation of the new form._

It is often presented as consisting of three steps, involving

	* ReverseEngineering -> ReStructuring -> ForwardEngineering

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This definition is not very precise and restrictive: as a result,
even ProgramCompilation fits in. It would be more accurate to insist that the _new form_ is at the same or a higher level of abstraction
as the original subject system -- conform the ReStructuring definition
in which the level of abstraction remains the same.

-- ArieVanDeursen, 04 Aug 2002

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Relevant reengineering topics:
	* AutomaticRetargeting
	* SoftwareRenovation 
	* ProgramRefactoring
	* ReengineeringPatterns
	* ExchangeFormats

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Resources:
	* ReengineeringForum
	* CSMR
	* WCRE
	* ReengineeringMailingList
	* BadHonnefReengineeringWorkshop

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The US DOD maintains all sorts of info at http://www.stsc.hill.af.mil/RENG/, including a [[http://www.stsc.hill.af.mil/RENG/v3-1-6.pdf][Software Reengineering Assessment Handbook]], a tool 
evaluation methodology, and various tool descriptions.
Sometimes a bit outdated (viz. dealing with Y2K extensively), sometimes very interesting.

-- ArieVanDeursen, 17 September 2002.

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 E. J. Byrne
(_A Conceptual Foundation for Software Re-Engineering_, ICSM 1992, pp. 226-235) has proposed a model for reengineering distinguishing three steps:
	1 ReverseEngineering
	1 ReStructuring
	1 ForwardEngineering

which he visualizes using the following figure:

http://www.program-transformation.org/twiki/bin/viewfile/Transform/ReEngineering?rev=&filename=byrne.gif

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The SEI _Horseshoe Model_ is similar to Byrne's model, and takes a SoftwareArchitecture perspecitve on reengineering:

http://www.sei.cmu.edu/reengineering/Horseshoe.gif
 
See http://www.sei.cmu.edu/reengineering/

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CategoryReengineeringPages | CategoryReengineeringWiki | Contributions by ArieVanDeursen