Addendum: Amendment to the Tender Document. Tenders are hereby invited for the provision of support and maintenance services for the Hitachi Network Manager ADMS. The Supplier shall supply the following maintenance services, as a minimum: 1. Reports on third party products and periodic deployment of security patches; 2. Identification, verification, implementation and testing of ADMS patches and hotfixes; 3. Provide the Employer access to ADMS software releases as they become available to keep the system evergreen; 4. ADMS base system and project specific applications - troubleshooting and development, implementation and testing of corrections; 5. Annual system health audit including a report of areas of concern and recommendations. Contract period: Six (6) years from date of commencement, not earlier that 01 July 2024. (投標 №77435138cn)