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schedule until they reach 80%; this is evidenced by the much greater slope of the
actual cumulative cost curve towards the time axis.
6 Summing up
The simplest possible models for determining the course of the cumulative construction costs and time curves has been presented in the paper. Practical and easy-touse model because developed as a result of its own measurements of increasing
processing and cost values in cyclical, consistent, verified audit reports of the Banking
Investment Supervision.
The Earned Value Method is a simple tool that allows a researcher to monitor
the implementation of the schedule and the use of the budget. Several indicators
based on scope, timing and cost information can be analysed for the progress of the
project, interpret scales, causes and consequences of deviations, as well as estimate
the further implementation, including the accurate estimation to complete the project
within the budget and the deadline [14].
A reasonable, acceptable level of time and cost variance assessed by EVM
approach as a result of BIS analysis for a Bank positive financing cannot be more
than 1/5 of the average deviation appraised at each stage EPCM of a BIS project
monitoring.
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