United States Government Publishing Office publisher pbl distributor dst United States Government Accountability Office Accounting and Information Management Division author aut Government Organization text government publication eng GAOREPORTS Legislative Agency Publications gao legislative 2010-08-12 U.S. Government Printing Office 1995-07-13 monographic deposited born digital 24 p. GA 1.13:AIMD-95-136 https://www.govinfo.gov/app/details/GAOREPORTS-AIMD-95-136 P0b002ee1803a061a f:ai95136 DGPO 2010-08-12 2011-03-24 GAOREPORTS-AIMD-95-136 machine generated eng fdlp REPORT GAOREPORTS-AIMD-95-136 AIMD-95-136 Military communication Computer networks Defense cost control Defense procurement Requirements definition Strategic information systems planning Data transmission Telecommunication Defense Commercial Telecommunications Network Defense Information System Network Federal Telecommunications System Federal Telecommunications System 2000 FTS 2000 Letter Report AIMD The Department of Defense initiated the Defense Information System Network (DISN) program in 1991 and a two-phase effort to improve its long-distance telecommunications services and reduce costs. In the near term, Defense envisioned that DISN would achieve these goals by consolidating and integrating about 100 existing communications networks into one network. For the long term, DISN would replace older telecommunications systems, such as the Defense Commercial Telecommunications Network (DCTN), and use new technology and improved acquisition strategies to provide a more cost-effective system. Asked to review implementation of DISN, GAO found that Defense has not effectively planned and managed its DISN program. Specifically, Defense has spent more than $100 million over the past 3-1/2 years on DISN's planning, implementation, operation, and management. In spite of this expenditure, DISN still lacks validated operational requirements, approved plans for network implementation, and guidelines needed to ensure efficient and effective end-to-end management of this important communications network. As a result, Defense's near-term DISN implementation is over 2 years behind schedule and DISN's objectives of improving Defense's communications services and reducing costs are at risk. https://www.govinfo.gov/content/pkg/GAOREPORTS-AIMD-95-136/html/GAOREPORTS-AIMD-95-136.htm https://www.govinfo.gov/content/pkg/GAOREPORTS-AIMD-95-136/pdf/GAOREPORTS-AIMD-95-136.pdf GAO/AIMD-95-136 https://www.govinfo.gov/app/details/GAOREPORTS-AIMD-95-136 Letter Report GAO/AIMD-95-136; Defense Communications: Management Problems Jeopardize DISN Implementation; Military communication Computer networks Defense cost control Defense procurement Requirements definition Strategic information systems planning Data transmission Telecommunication Defense Commercial Telecommunications Network Defense Information System Network Federal Telecommunications System Federal Telecommunications System 2000 FTS 2000