@TechReport{	  it:2004-031,
  author	= {Malin Ljungberg},
  title		= {Curvilinear Coordinates in a {PDE} Solver Framework;
		  Analysis},
  institution	= {Department of Information Technology, Uppsala University},
  department	= {Division of Scientific Computing},
  year		= {2004},
  number	= {2004-031},
  month		= aug,
  abstract	= {In the present work we demonstrate how the use of an
		  object oriented analysis and design process, augmented by
		  variability modeling and user centered design, results in a
		  flexible software model for handling curvilinear
		  coordinates in a finite difference PDE solver framework. It
		  is shown that feature and variability modeling are
		  appropriate tools for identifying and achieving the
		  appropriate flexibility in this model.
		  
		  The resulting software model is validated through an
		  comparative analysis involving a range of other similar
		  models.}
}