Enterprise Architecture

Enterprise Architecture

Enter Title


The state's information technology (IT) architecture is managed and operated from an enterprise perspective. The management structure involves State Information Technology Services Division (directed by the State CIO), various governing IT boards and councils, and additional state agency IT organizations. Please select from the following to learn more about the technology architecture:

Mainframe Computing
Mid-Tier Computing
PC Environment
Data Network Environment
SITSD Service Desk Services
Internet Access
Enterprise E-mail & Database

State-Approved Software and Other Enterprise Products
Enterprise Web Content Management Software (DNN)

SABHRS Services
Centralized Imaging
State Telecommunications Systems

University System Access
Meridian Voice Mail 

Video Conferencing Services (SummitNet)

Mainframe Computing

SITSD operates an IBM Business Class mainframe and maintains a similar machine for Disaster Recovery. Each mainframe is connected to a disk array available at each site. Disk storage is backed up to a Virtual Tape Server and Automated Tape Library. Report output can be captured for online viewing or sent to high speed laser printers operated by General Services. View current Mainframe Software Standards.

Mid-tier Computing

The mid-tier environment consists of Virtual Machines and SANs. The mid-tier computing environment is targeted towards general purpose, multi user, multi-tasking application services. The standard operating systems are Microsoft Windows and Linux. View current Mid-Tier Software Standards.

Personal Computer (PC) Environment

The state has established a PC standard based on IBM-compatible equipment and selected software. SITSD provides technical support for hardware and software within this standard. The State currently has in place term contracts for purchases of PCs manufactured by Dell, IBM, and HP through the Western States Contracting Alliance (WSCA) contract. The state standard and supported operating system is Microsoft Windows. Microsoft Windows is also the standard file and print operating system. The state uses an Active Directory forest for enterprise management and security of file and print services. The supported desktop software standard is Microsoft Office. Microsoft Access is the desktop database software standard for small applications.The emphasis in the PC environment is on the use of networked systems. View current PC and LAN Software Standards.

Data Network Environment

The state provides data networking facilities and services for all agencies and other qualifying organizations. SummitNet (State and Universities of Montana Multi-Protocol Network) is the Intranet for the state and the Montana University System. SummitNet has a redundant backbone with multiple paths to key Montana cities. SummitNet currently supports all state agencies and qualifying organizations by providing connectivity to approximately 22,000 devices at more than 600 locations. SITSD uses a private address numbering plan for IP addressing requirements with the general government portion of SummitNet. The State utilizes IP address translation and firewall protection. The state operates a private multi-protocol layer switching (MPLS) network with quality of service (QoS) to provide a secure converged network environment supporting data, video conferencing and voice services. The state operates a physically redundant 10 Gb/score network with 10 Gb/s and 1 Gb/s distribution links. Core network sites include Missoula, Helena, Bozeman, Billings and Miles City. The state operates Internet POP’s in Helena and Billings using diverse carriers. The state operates two physically separated datacenters offering connection speeds up to 10 Gb/s. Standard remote site WAN access speeds are between 5 Mb/s and 1.5 Mb/s. The few legacy frame-relay and DSL sites typically access the network at WAN speeds between 1.5 Mb/s and 56 Kb/s. Host connectivity is typically 1 Gb/s with power over Ethernet available in select locations. Wireless A/B/G/N connectivity is also available in select locations. The state has implemented 802.1x Authentication across the complete enterprise network and successful authentication is required for network access.

Directory Services

The state does not have a single directory strategy, but rather a number of strategies related to different computing platforms and applications. The state uses ACF2 for the IBM mainframe environment, Microsoft Active Directory for Windows server environments, and Oracle Internet Directory for Oracle applications. Where possible, applications requiring authentication and directory services utilize one of these primary directories.

SITSD Service Desk Services

SITSD maintains a single point of contact - the IT Service Desk - which provides Montana public employees and other customers with a positive, courteous and professional contact to facilitate and resolve incidents and problems. The desk also facilitates the ordering of new services by utilizing stateIT resources. The desk provides two separate, distinct functions: (1) logging, tracking, resolution and elevation of problems; and (2) project management for coordination of all data network adds, moves and changes including SummitNet conversions and new installations. Customers who are directly logged into the state network can file a service request or report an IT incident online at http://servicedesk.mt.gov. Customers who are not directly logged into the state's network should call (406) 444-2000 or 1-800-628- 4917 for assistance. The SITSD Service Desk operates 24 hours a day, 7 days a week, 365 days of the year. Outside the hours of 8 a.m.. to 5 p.m.., standby support is available for critical problems by calling the above telephone numbers.

Internet Access

The State of Montana, the University of Montana and Montana State University currently have their own Internet portals. SITSD currently contracts with VISION NET for Internet Access. All entities utilizing the State's Internet portals pass through a state-owned firewall. The firewall provides security to all devices on the inside of the state's network and performs Network Address Translation (NAT) for IP communications. The state uses private IP addressing for devices that reside on the inside of the firewall. A Private Class A address is used for State Government entities and Class B private addresses are used for County/City Governments. The State also has a registered Class B for addressing public devices. IP administration, which includes IP address management and Domain Name Services (DNS), is maintained by state personnel for entities connected to the state's WAN and LAN networks. Many users have installed web browsers and are actively using the Internet. Microsoft Internet Explorer is the supported web browser. Learn about broadband access across the State of Montana.

Enterprise E-mail & Database

The enterprise e-mail system is Microsoft Exchange using the Microsoft Outlook client on the desktop. The state has established Oracle, MongoDB and Microsoft SQL as the enterprise database management software standards for web enabled and distributed database management.

State-Approved Software and Other Enterprise Products

  • View the current list of state-approved software. This Microsoft Excel file provides some filtering capabilities. These software products meet required state policies, standards and guidelines.
  • View the current list of state-approved SITSD and enterprise products which are used to manage the enterprise for PC, LAN, mid-tier and mainframe applications. 

​These lists are updated as frequently as possible. If you have questions regarding products that are not on the lists, please contact Software Asset Management Office Manager Maris Cundith at mcundith@mt.gov.

DNN Web Content Management Software

DNN is the newest State of Montana web content management software. DNN runs in a web browser, so agencies can distribute control of their web pages to the employees who truly own the content, and not just those with the technical ability to work in HTML. DNN (formerly called DotNetNuke) comes from the third party DNNCorp. Among the more than 500,000 government and business organizations that run the ASP.NET-based content management system are NASA, the United Nations and Bank of America. From its freeware base DNNCorp offers licenses up to the Enterprise edition (Evoc) license held by the State Information Technology Services Division which includes elite telephone support, complete source code and SharePoint document integration. Learn more at http://howto.mt.gov/WelcometoDNN.aspx

SABHRS Services Bureau

The Department of Administration (State Financial Services Division) is responsible for maintaining the Statewide Accounting, Budgeting, and Human Resources System (SABHRS). The SABHRS Services Bureau exists within the division to carry out this responsibility. The accounting and human resource components of SABHRS consist of nine PeopleSoft modules: General Ledger, Accounts Receivable, Accounts Payable, Asset Management, Purchasing, Human Resources, Benefits Administration, Time and Labor, and Payroll. The budget development component of SABHRS, referred to as MBARS (Montana Budget, Analysis and Reporting System), is an application developed and provided by Affinity Global Solutions, Inc., previously known as Legacy Solutions Inc. MBARS consists of five modules: Executive Planning Processing (EPP), Capital Projects (CP), General Budget Building, Budget Implementation, and Narrative Publications.

Centralized Imaging Services

The state has implemented an Enterprise Content Service based on IBM FileNet's P8 web based software which is the undisputed leader in Gartner's ECM Magic Quadrant. P8 offers full featured electronic content management including imaging, workflow with business process management, content based retrieval, custom applications and automatic content collection. This service is managed and operated by SITSD.

State Telecommunications Systems

The facilities of the state's telecommunications systems are provided principally for the conduct of State and University System business. The state’s telecommunications systems are available for use by political subdivisions of the state. Political subdivisions includes any county, city, municipal corporation, school district, special improvement district or taxing jurisdiction, or any other political subdivision or public corporation. Currently the state has connections between Optimum, CenturyLink Communications and the Capital Complex in Helena, the University of Montana in Missoula, and the Montana State University in Bozeman. (Note: The network details of the State network may occasionally change as the State adds, changes, moves, and deletes facilities.) The state uses a core network, for the transport of voice, video and data, connecting major campus sites in Billings, Bozeman, Butte, Dillon, Great Falls, Havre, Helena, Missoula, along with the other PBX and video sites in Boulder, Deer Lodge and Warm Springs. The Local Exchange Carriers (LECs) provide DID/DOD services directly to all of the network nodes. The LECs also provide DID/DOD services to key systems and IFB service in remote locations. The State has a contract with CenturyLink through which long distance calls for agencies on and off the State Telephone Network are billed at a discounted rate.

University System Access

There are six units of the University System that have access to the state network. The University System does not provide for student long distance services.

  • Montana State University MSU-B) - Billings
  • Montana State University (MSU) - Bozeman
  • Montana Tech of University of Montana (MT-UM)  - Butte
  • University of Montana (UM) - Missoula
  • University of Montana-Western (UMW-UM) - Dillon
  • Montana State University (MSU-N) - Havre

Meridian Voice Mail

The state has Northern Telecom Meridian Voice Mail systems. Currently there are 5,035 stations that have voice mail served off of the system in Helena. The Northern Telecom Meridian Voice Mail system at the University of Montana. Currently there are 2,640 stations that have voice mail off the system in Missoula. The Northern Telecom Meridian Voice Mail system at the Montana State University in Bozeman. It serves 1,632 local mailboxes and approximately 45 other voice services (menus and recorded announcement services). Other locations that have the Northern Telecom Meridian Voice Mail system are in MSU Billings, Kalispell Labor and Industry, Butte DPHHS, MSU Northern, and WMC UM in Dillon. The State is in the process of migrating to Northern Telecom’s next generation Call Pilot voice mail system in several locations. The equipment listed could fluctuate over the course of the next several years due to additions, deletions and modifications.

Video Conferencing Services on SummitNet

Video conferencing on SummitNet, the state's network, allows customers to communicate face-to-face in real time with two-way video and audio technology.  It is a tool that can increase productivity, reduce travel expense, and connect several participants in geographic locations around the state, nation and the world. Video conferencing can be used for distance learning, agency meetings, statewide training activities, human resource activities, emergency response assistance and public hearings. The SummitNet video network uses compressed video transported over IP Local and Wide Area networks, the Internet Cloud and digital telephone lines. Learn more about video conferencing services.



The State Informational Technology Services Division is part of the Montana Department of Administration. It is responsible for the delivery of information services and the planning, coordination, training, control and security of information resources throughout state government. Information services and resources provided include:

  • Computing and telecommunications hardware and software;
  • Operational services;
  • Professional hardware and software specialists to support the technical environment;
  • Web development services and support; and
  • Professional specialists to develop and coordinate policy, research, and development of information resources.

The division manages:

  • A mainframe platform and associated software for applications requiring these resources.
  • A distributed network of mid-tier computing platforms (non-mainframe and non-PCs), and a central mid-tier service.
  • The statewide voice and data networks that allow all agencies and other qualifying organizations, including remote offices, to communicate with and use central resources.
  • Enterprise computing contracts.

SITSD also establishes enterprise-computing policies in coordination with state agencies, and works with agencies to develop strategic plans and directions for information technology in the state.


View the most recent State of Montana Information Technology Strategic Plan.