A friend has asked if I coudl implement a data historian. I am busy doing research, googling around, reading UPC Unified Architecture - but it's a lot to get through, so I will ask if anyone here has ever gone down that road (while still continuing my research).
Approx how many man months for a 20+ year developer (or two) to get at least a demonstratable working prototype - and how long to completion?
Which programming language? Is C++ godd, or what?
What resouces are available to me? (I thought I saw an Open OPC framework, but can't find it again). Any FOSS, libraries or free ecode which I can base upon? Maybe a sourceForge project?
How best to test?
Any other hints?
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