The total cost of 14.6 billion yen in maintenance and operation expenses in FY2018 included expenses for functions that did not have the intended effect of the project (...)
The reduction rate of the operational cost borne by each ministry and agency was only 2.3% through the migration into the Government Shared PlatformSystem (first phase) (77 systems audited).
Some IT resources were not fully utilized: - 6,351 cores which take up approximately half of the total 12,950 cores were not used. There were 79 systems (91.8% of 86 systems audited) for which the monthly average CPU utilization rate was lower than 30%.
The Government did not check the adequacy of the calculation of the actual reduction amount which was done at ministry’s own discretion.
There was a considerable gap between 13.6 billion yen and 102.8 billion yen:
- the former (13.6 billion yen) is the actual difference between FY2020 budget (386.3 billion yen) and FY2013 budget (400 billion yen);
- The latter (102.8 billion yen) is the expected reduction without considering "incremental costs due to changes in business" (increased operational cost in accordance with changes in operational requirements from the estimated cost).
4 Verifying the calculation of the actual amount of reduction in the operational cost, and striving to calculate the actual amount of reduction cost appropriately.