RFFlow

RFFlow is a drawing tool that allows you to quickly and easily draw flowcharts, organization charts, audit charts, cause-effect (fishbone) diagrams, PERT charts, electronic schematics, entity relationship diagrams, fluid power diagrams, gantt charts, genetic pedigree charts, IDEF0 and IDEF1X diagrams, network design diagrams, floor layouts, quality system/ISO 9000 charts, software design charts, timelines, and work breakdown charts.