파일:Waterfall model-ro.svgDescriptionWaterfall model-ro.svg English: en:Waterfall model Date 20 August 2013, 19:46:15 Source Own work Author ScotXW, based on works by Paul Hoadley
파일:Waterfall model-de.svgSource Own work Author ScotXW, based on works by Paul Hoadley and Paul Smith Other versions File:Waterfall_model-ro.svg, File:Waterfall_model-hu.svg
파일:Waterfall model-hu.svgScotXW, based on works by Paul Hoadley and Paul Smith Other versions File:Waterfall model.svg, File:Waterfall_model-ro.svg, File:Waterfall_model-de.svg
파일:Waterfall model.svgversions Derivative works of this file: Waterfall model-he.svg File:Waterfall model-hu.svg, File:Waterfall_model-ro.svg, File:Waterfall_model-de.svg
