The software will be used in multiple cells to collect hourly SPC data. (Xbar/histogram, etc) It will be reported to the customer on a quarterly basis.
I'm not really sure what you meant here but here are my thoughts:
1. Minitab is not designed to "collect data". Minitab is more useful to analyze previously collected data, and even on that I can't imagine doing histograms and control charts on a real-time basis using Minitab. Better to do pre-control charts here, or manual plotting.
2. Minitab have a learning-curve, and can be difficult at that if you would expert operators using it while doing their usual/routine jobs.
What I recommend is to break your project into two parts
1. Data collection - how to get data on a real time basis and store is somewhere accessible. This could be in Excel, database, or log files.
2. Data Analysis (Histogram, Control Charts, etc) - What routine analysis do you need, at what frequency? Who will create it, how will it be published, and who will peruse it. From this you can design Minitab macros to connect to your data source and produce PowerPoint-ready charts.
Regards