Understand What Happened and Why It Matters.
Schedule disruption can affect completion dates, contract obligations and commercial outcomes. Mattis provides technical schedule analysis to help project teams evaluate events and their potential impact.
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- Best for
- Teams evaluating events, time extensions or claims
- Typical outputs
- Chronologies, TIAs, technical documentation
- Engagement
- Confidential, scoped per event or project
Delay questions are decided by the record.
When a dispute arises, the strength of a position depends on the schedule record and how carefully events were documented at the time. Reconstructing months of history from incomplete updates is slow and expensive and easy to challenge. A clear, method-based analysis helps all parties understand cause and effect.
Signals you need this
- An event has affected or may affect a contractual milestone
- A time extension request needs technical support
- The team needs to understand concurrent or pacing delay
- Schedule updates during the period are incomplete or inconsistent
- A notice deadline is approaching
Our technical approach
- 01
Gather the record
Collect schedule updates, baselines, daily reports, correspondence, RFIs and change records.
- 02
Review the schedules
Assess the reliability of the contemporaneous schedules and any corrections they need.
- 03
Build the chronology
An event chronology connecting what happened to when and where it affected the work.
- 04
Analyse the impact
Apply an appropriate method, such as time impact analysis or a windows-based review, to measure effect on the critical path.
- 05
Document clearly
Technical documentation that explains the method, the assumptions and the results.
How delay is measured, period by period.
Click a window to see the events behind the critical path delay in that period.
What you receive.
Scaled to the project and its contract requirements. Assumptions and exclusions are agreed at kickoff, so there are no surprises later.
Contemporaneous schedule review
Reliability of the updates used in the analysis.
Event chronology
A dated record of events and their links to schedule activities.
Time impact analysis
Modelled impact of specific events on the forecast.
Extension-of-time support
Technical schedule input to time extension requests.
Technical claims documentation
Clear documentation of method, assumptions and findings.
Not sure this is the right fit?
Talk it through with an experienced scheduler. You will get a first read on your schedule challenge and a clear recommended next step, at no cost.
- Speak with a scheduler, not a salesperson
- Bring your schedule questions, or just the problem
- No cost and no obligation
Built for demanding environments.
IND-07Transportation & Infrastructure
Linear construction, access constraints, permitting interfaces and multiple stakeholder milestones.
IND-06Energy & Power
Utility interfaces, outages, equipment procurement, commissioning and milestone management.
IND-04Commercial Construction
Trade coordination, procurement, building enclosure, MEP integration and occupancy milestones.
IND-01Data Centers & Mission Critical
Phased energization, long-lead electrical equipment, integrated systems testing and operational readiness.
Do you provide expert witness services?
Expert witness and legal services are not standard offerings. Where a matter requires them, qualified specialists should be engaged, and our technical schedule analysis can support that team.
Which delay analysis methods do you use?
The method depends on the contract, the available records and the question being asked. Common approaches include time impact analysis and windows-based analysis of contemporaneous updates.
Is the discussion confidential?
Yes. Initial discussions are confidential. Please don't send confidential documents until a secure sharing arrangement is agreed.
Often combined with.
Recovery Scheduling
Turn schedule pressure into a practical plan with tested options and clear tradeoffs.
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Critical Path Analysis
Understand what truly drives completion: driving logic, path continuity, constraints and float.
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Schedule Health Assessments
An independent review that finds schedule weaknesses before they become delivery risks.
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Owner-Side Advisory
Independent insight that helps owners see whether forecasts reflect reality and risks are visible early.
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