1. cheap in terms of software costs

  2. minimal hardware support to run on each researcher's desktop

  3. the option to switch between interactive and post-calculation viewing

  4. ease of initial use

  5. efficiency at drawing large numbers of atoms and bonds

  6. animation of the progress of a simulation

  7. preparation of output in different formats

  8. possibility of slicing and annotating samples

  9. highlighting of specific areas or configurations

  10. a choice of atom, spin, pore etc as the object visualized

  11. no need to recompile for parameter changes

  12. zooming into more detail as needed

  13. possibility of drawing atoms of variable quality (dot, sphere, etc)

  14. true three-dimensional visualization with shading and automatic perspective

  15. possibility of drawing bonds of variable length and thickness to aid three dimensional spatial comphrehension
In addition we believe strongly in (legally) free software and open source code-sharing as well as systems that are platform-independent and LINUX compatible.

(Yes, AViz has passed the graduate student ``expert'' graduation test, and as will now be described is the end result of many contributions by graduate students and postdoctoral fellows in the Technion Computational Physics group.)