Analyzing the fragnet in isolation
A fragnet should be reviewed in the schedule it was inserted into, including its logic ties and the status of that schedule.
For Developers, Owners & Public Entities
Time Impact Analysis (TIA)
A time impact analysis represents inputs, assumptions and implementation choices. A review may examine how those choices relate to the project records, the administration of schedule submissions and the question posed.
A submitted impact analysis may be reviewed in relation to its selected schedule, modeled events, logic, durations, float assumptions and other information relevant to the assigned questions. Checks or re-performance depend on scope and available records; no particular starting schedule, finding or outcome is presumed.
The modeled relationships and their supporting information may affect calculated results. Their significance depends on the network, assumptions and the question being evaluated.
Possible assignment considerations
In practice
- 01
Validate the starting schedule
Evaluate the starting schedule and any adjustments against the purpose and time perspective of the analysis.
- 02
Examine the fragnet as a description
Assess whether the modeled activities and logic reflect what actually had to be done.
- 03
Test the tie-in points
Check that the event is modeled as constraining work it genuinely constrained, rather than driving the completion date artificially.
- 04
Identify what was left out
Look for other events in the window, pre-existing slippage and concurrent causes the analysis does not address.
Considerations and limitations
Questions and limitations to consider
Accepting the tie-in
A submitted impact analysis may be reviewed in relation to its selected schedule, modeled events, logic, durations, float assumptions and other information relevant to the assigned questions. Checks or re-performance depend on scope and available records; no particular starting schedule, finding or outcome is presumed.
Objecting generally
A general objection does not identify what is missing; the review points to specific logic, durations, dates or records.
Time Impact Analysis (TIA)
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Also in this practice
Developers, Owners & Public Entities Construction Administration Services
- Baseline Construction Schedule AnalysisReviewing a submitted baseline, its assumptions and the scheduling requirements.
- Schedule Update AnalysisChecking each update against the last, so drift is caught while it is small.
- Project Progress MonitoringTechnical verification of where a project actually is.
- Request for Extension of Time AnalysisAssessing whether a time request is supported on the contract and the evidence.
- Change Order Requests AnalysisReviewing change documentation, pricing, schedule effects and contract administration.
- Requests for Equitable Adjustment AnalysisAuditing a request for equitable adjustment against the contract and the record.
- Assistance with Preparation for Schedule Requirement SpecificationsWriting the scheduling requirements so the project produces a record worth having.
- Estimating AssistanceTechnical cost checks on budgets, proposals and disputed valuations.