TRESS 90 was a Norwegian

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 software project meant to be the replacement for INFOTRYGD, a case-worker support system, used by the Norwegian National Insurance Service

National Insurance Service

The National Insurance Service was a Norwegian Norwegian government agency responsible for social security.-Organization:It had its roots in the National Insurance Administration , which was founded by parliamentary act on 23 July 1894 under the name Rigsforsikringsanstalten...

.

Due to administrative, political, organizational and technical problems, including extreme cost overrun

Cost overrun

A cost overrun, also known as a cost increase or budget overrun, is an unexpected cost incurred in excess of a budgeted amount due to an under-estimation of the actual cost during budgeting...

s, the project was eventually abandoned with a total pricetag of ($200m).

It is still the largest IT failure in Norwegian history.

Sources

• June 1995 Government report on TRESS-90 (in Norwegian)