The role of a TDA within CGI is to optimise the capability of the IT infrastructure and supporting organisations to deliver a cost effective and sustained level of availability to support and maintain the contracted service level agreements.
Areas covered by the TDA role are as follows :-
• Business demand
• The cost required to meet the level of required service
• The configuration and complexity of the IT infrastructure including, the level of redundancy, the reliability of the infrastructure and its components, and the levels of infrastructure maintenance.
• The processes and procedures used
• Human factors
• External events (outside OS)
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