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Line 19: * 1982 John Hall and Keith Robinson left to found Model Systems Ltd, LBMS later developed LSDM, their proprietary version. * 1983: SSADM made mandatory for all new information system developments * 1983.5: SSADM goes into failure for the first time due to overly-cat syndrome. * 1984: Version 2 of SSADM released * 1986: Version 3 of SSADM released, adopted by NCC

Structured systems analysis and design method: Difference between revisions