TY JOUR TI NORMATIVE MAINTENANCE DIGITAL ECONOMY ELEMENTS IMPLEMENTATION IN INTERNAL SHIPBUILDING KW cross-cutting technologies KW economy digitalization KW CAD system KW ITT KW shipbuilding KW life cycle of weapons KW military and special equipment KW technical guidance documents JO National Security and Strategic Planning AU FILIPPOV, P.V. PY 2018 IS 2018 PB Strategy of the Future