EVM
AT CERN
The
Actual Cost information is collected from the financial system
per budget code when the invoice is accepted and not when the Budget
code is charged.So provisions are not part of the Actual Cost.
The Planned Value is derived from the resource assignments
(RA) and can be determined per Work Unit.
The Earned Value is value of work done calculated from the
actual quantity of deliverables and the Planned Value. This can be
determined per work unit.
Cost
Variance on Work Units and WBS
Since Cost
Variance is calculated from Actual Cost on a budget level, and a
budget code may be used for different activities, therefore, we
are not able to get Cost Variance information on the level of individual
workunits or WBS nodes.
Cost to
completion (CTC)
Cost to completion will be adjusted as it evolves and at least once
a year to take into account price indexation. Price revisions are
viewable in CET.
Special
contributions
Special contributions (in-kind contributions) are part of the cost
to completion. Special contributions can be viewed under the EVM
summaries screen.
Contracts
For F contracts, a link is established between PPT and CFU to ensure
coherence of data.
Currency,
Exchange rate
The currency used in PPT is CHF. For those contracts made in other
currencies, the exchange rate used is the one of the date of signature
of the contract to calculate the Planned Value.
How we calculate
PV and AC using weights on deliverables
Planned Value for a Work Unit is calculated linearly over time.
For Work Units which have multiple deliverables with weights associated
to them, Planned Value on a given status date can be calculated
as follows:
PV at a given
date=(PV/ Total weight of deliverables)*weight
of deliverable on status date.
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