Runway - elegant application for UML design that is both simple and powerful. Runway gives you all the most important functions which are needed in the construction of charts and vector design tools as well as easy-to-use tool class diagram without all the extra stuff.
Runway is great for programmers and web designers who are looking for a simple tool for the rapid design of schemes, frameworks, or visualization model of relations, and will not let you get lost in a sea of confusing and frustrating extraneous features.
Runway has the support of "Connected" lines. Runway offers a "smart" way, which can be used to build forms with smooth, curved lines. Runway also includes a powerful tool Bezier Path for creating vector graphics in almost any form or description.
Runway also includes full support for advanced features Mac OS X, like Quick Look, a full-screen mode, Autosave and Version Browsing. Export compositions as SVG or common image formats such as PNG, JPEG, TIFF or multi-page PDF.
OS - MacOSX 10.8 or Later
Home Page - http://celestialteapot.com/runway/