WAraucaria (software)
WARIS Express
WConceptDraw DIAGRAM
WDia (software)
WDRAKON
WEdraw Max
WEnterprise Architect (software)
WGenoPro
WInteractive EasyFlow
WMagicDraw
WMenthor Editor
WMicrosoft Visio
WOmniGraffle
WPiktochart
WSoftware Ideas Modeler
WYEd