1 Invest in New Zealand. 2  Opportunities & outlook. 3  Stability & security. 4  Rules & law. 5  Key contacts for investors.  Visa & investment options.
Freebase(0.00 / 0 votes)Rate this definition: OSIsoft. OSIsoft, LLC is a worldwide manufacturer of Application software for real-time data infrastructure solutions, called the PI System. Founded in 1980, OSIsoft, LLC is privately held and headquartered in San Leandro, CA, with operations worldwide.
The OSI Model stands for Open System Interconnection. This model  defines the seven layers of a network which are:    Application (7th Layer)  Presentation (6th Layer)â¦  Session (5th Layer)  Transport (4th Layer)  Network (3rd Layer)  Data Link (2nd Layer)  Physical (1st Layer)  .