Calligra Flow, formerly known as Kivio, is a free diagramming software

Diagramming software

Diagramming software is a computer program that is used to produce graphical diagrams. Diagrams are used in software and business to represent dataflows, workflows and software architecture.- Flowchart :* ARIS Express * Creately...

 that is part of Calligra Suite, an integrated graphic art and office suite

Office suite

In computing, an office suite, sometimes called an office software suite or productivity suite is a collection of programs intended to be used by knowledge workers...

 by KDE

KDE

KDE is an international free software community producing an integrated set of cross-platform applications designed to run on Linux, FreeBSD, Microsoft Windows, Solaris and Mac OS X systems...

.

Description

Flow is a flowcharting and diagramming application for the Calligra Suite and has a user interface that is similar to Microsoft Visio

Microsoft Visio

Microsoft Visio , formerly known as Microsoft Office Visio, is a commercial diagramming program for Microsoft Windows that uses vector graphics to create diagrams.- Features :...

. It is fully integrated into Calligra and can for example be embedded into Calligra Words.

Features:

• Scriptable stencils using Python
  Python (programming language)
  Python is a general-purpose, high-level programming language whose design philosophy emphasizes code readability. Python claims to "[combine] remarkable power with very clear syntax", and its standard library is large and comprehensive...
  
  .
• Support for Dia stencils.
• Plugin framework for adding more functionality.