Kellyton dos Santos Brito,  Vinícius Cardoso Garcia,  Daniel Lucrédio,  Eduardo Santana de Almeida,  Silvio Lemos Meira. 

Software maintenance tasks are the most expensive activities on legacy systems life cycle, and system understanding is the most important factor of this cost. Thus, in order to aid legacy knowledge retrieval and reuse, this paper presents LIFT: a Legacy InFormation retrieval Tool, discussing since its initial requirements until its preliminary experience in industrial projects.

http://www.lbd.dcc.ufmg.br/colecoes/sbcars/2007/006.pdf

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