01547naa a2200289 a 450000100080000000500110000800800410001910000170006024500760007726000090015330000140016252005970017665300310077365300270080465300280083165300290085965300290088865300270091765300250094465300280096965300190099765300220101670000190103870000260105770000150108377301590109810021732007-12-18       1990    bl uuuu     u00u1 u    #d1 aMOURA, M. F.  aThe product evolution lineba model for preparing software for changes.  c1990  ap. 31-38.  aSoftware maintenance is the critical problem in the whole software production environment due, principally, to the inexistence of techniques, methods and tools to minimize the effort required for this activity. Usually, the existing methods deal with the software production management, without considering the detailment of the maintenance phase and the constraints that may be found. It is necessary to obtain tools for easing this activity and thus enabling a good comprehension of the software that must be modified. In this paper we present an approach to preparing software for changes.  aDocumentação de software  aEvolução de software  aFerramentas de software  aManutenção de software  aReengenharia de software  aSoftware documentation  aSoftware maintenance  aSoftware re-engineering  aSoftware tools  aSofware evolution1 aCARNASSALE, M.1 aEVANGELISTA, S. R. M.1 aTERNES, S.  tIn: INTERNATIONAL WORKSHOP ON THE BRAZILIAN SOFTWARE PLANT PROJECT, 2., 1990, Campinas. Proceedings... Campinas: Banco do Brasil: EMBRAPA-NTIA: CTI, 1990.