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In this paper, we establish the need (based on literature and anecdotal evidence) for an infrastructure for CS1 courses to visually support problem solving from the initial problem statement to the code. Then, we describe how using Unified Modeling Language supported by CASE software (Rational Rose) can be used with carefully prepared course materials (selected projects, prepared databases, written lab manuals), to create this infrastructure. The advantage of this infrastructure is that it candoi:10.1145/1029533.1029565 dblp:conf/sigite/TabriziCOL04 fatcat:mdugj4ll2vh67dmsqvhx3chcvq