Hi Mari,
Thank you for your evaluation. Let me reply your queries one by one.
is the version of the downloadable trial version of Business Process VA
the full one or a cut-down one?
The downloadable trial version of BP-VA is full featured. The differences with the purchased copy are the trial one will work for 30 days and the exported images will contain watermark.
What is the difference between the no install and the install versions? Which one causes the less installation problems?
Install version requires you to run the installer to install the tool. The installer will extract the files you need to run BP-VA to the directory you selected.
No-Install version is a zip file. You just need to unzip it and then run the exe file under the bin folder to run the tool.
is the smooth installation guaranteed and that there will not be any system crashes?
We totally understand the seriousness of those reported installation problems. I admit that the installer was not very stable at the very beginning (about 2 years ago). But now, I can say it is very stable. It is true that there are several complaints about the installation. But there are also a lot of users who can install successfully. Of course, they would not post here and said that they could install without any problem. 
About the crashing problem, as far as I know it only crashes the installer itself. It will NOT harm your system. Also, this problem is very rare and you do not need to worry too much.
Does the uninstaller fully uninstalls all the .dll program files?
Except files that are produced in runtime (e.g. log file), all files inside the installation directory will be removed by un-installation.
Why one should prefer Biz Proc. VA over Visio?
One of the strength of BP-VA is the visual modeling capability. Our visual modeling features are the most advanced when compare to other vendors.
We provide intuitive inline editing for all UML diagrams. This truly what-you-see-is-what-you-get diagram editing facility reduces the effort and time in diagramming.
The resource-centric interface is adopted to assist frequently performed tasks. Context-sensitive shortcut buttons are shown when a diagram element is selected. Frequently performed operations like fit to size, creating associated diagram elements can be performed in one mouse-click.
There are many, many other benefits in using BP-VA. It is sometimes difficult to describe how well our tools are, so we always encourage people to try our tools. When you find that you can use a comparatively short time to draw much attractive diagrams that you drew in Visio before, you will know the answer: D
If one decides to buy the program after a positive evaluation period, will he have to uninstall the download and reinstall another version of the program?
No Un-install is needed. As I mentioned from the first answer, the downloadable trial version is full featured. All he needs to do is to import a purchased license key to the tool to make the tool a purchased copy.
Has anyone used this sw before for designing business processes for the electricity transmission sector? Any ideas on how to use it or actual examples would be most welcome.
I am sorry, I do not know if anyone has used BP-VA for designing business process for the electricity transmission sector. But as I know, users of BP-VA come from different sectors. As you know, all sectors may have the need of business modeling.
I hope the information has helped. If there are any questions, please feel free to post again.
If you want more in-depth technical supports, you may consider creating a ticket at:
We will response to you as soon as we can.
Once again, thank you for your evaluation.
Best Regards,
Jick