A version of RUP (RationalUnifiedProcess) which is consistent with the AgileManifesto and practices. Nicknamed dX, which happens to be 'XP' upside down. Described in Chapter 4 of "Object Oriented Analysis and Design With Applications", 2nd ed., Booch/Martin/Newkirk, Addison-Wesley, 1998 - draft online at http://www.objectmentor.com/publications/RUPvsXP.pdf

Also see
	* ''Agility with the RUP'' by PhillipeKruchten, published in The Rational Edge, Jan. 2002, online at http://www-106.ibm.com/developerworks/rational/library/content/RationalEdge/jan02/AgilitywiththeRUPJan02.pdf. Also published in the Cutter IT Journal, Vol. 14 No. 12, Dec. 2001, pp. 27-33, online at http://www.cutter.com/freestuff/itj0112.html .
	* ''A Comparison of RUP and XP'', http://www.rational.com/products/whitepapers/423.jsp
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FilippoDiotalevi:
Even if it is not directly related to RUP I found some interesting points in "Using XP in a Big Process Company" 
:
   * http://www.agilealliance.org/articles/articles/XPInABigProcessCompany.pdf
More recent link:
   * http://www.agilealliance.org/articles/grenningjamesusingxpi/file
* http://agileconsulting.blogspot.com/2009/01/agile-over-rup-my-preferred-development.html