What security mechanisms are needed to protect the DMS systems from both state employees and users accessing over the Internet?

By the early 1990s, the Florida Department of Management Service (DMS) had built up a large information systems network that served state government agencies in 10 regional sites and connected these to the data center in Tallahassee. The network was based on the use of the proprietary Systems Network Architecture (SNA)
from IBM and a mainframe at the data center that housed most of the applications.
Although relatively happy with the SNA operation, DMS saw a need to expand applications and services by providing TCP/IP capability and Internet access.
The goal was met in a remarkably short time. Over the course of 30 months, DMS built a statewide TCP/IP network, began offering Internet services to local and state agencies, and created a suite of Internet applications that will ultimately move personnel, accounting, and billing systems online [JOHN96]. To complete the success story, DMS managed to accomplish all that while saving the state of Florida more than $4 million.