Step 1
The schedule moved.
Float eroded toward Phase C and D while recovery pulled Phase B back.
Milestone Tracker
Phase APhase BPhase CPhase D
For the scheduler who builds the monthly update,and the stakeholders who read it
Update the schedule. Automate the reporting.
Upload the schedule update. Pathizer drafts the reports and narrative. Your scheduler reviews and signs off.
60 days on your own projects. No card to start. Or try P7 and the free tools, no account
The monthly update cycle
- 1Field Team
Field Capture
The field enters progress in the Schedule Updater.
- 2Scheduler
Add Fragnets
The scheduler adds the time impacts for this period in P7.
- 3Scheduler
Health Check
Pathizer scores the schedule and shows each check that fails.
- 4Field Team + Scheduler
Review Meeting
The project team reviews the float paths and new impacts in P7.
- 5Scheduler
Publish
The scheduler publishes the update, and Pathizer writes the reports.
Connected Workspaces
Operations and Delay Analyzer from the same schedule record.
Current control + update review
Operations
Review each update, focus the weekly action plan, test recovery scenarios, and draft the narrative for the owner meeting.
Explore OperationsDelay + exposure review
Delay Analyzer
Analyze schedule update history, Half-Step Changes, delay and recovery drivers, phase impacts and contractor exposure.
Explore Delay AnalyzerSchedule copilot
Pathizer AI
A schedule copilot grounded in XER evidence, phase drivers, update review findings and float paths.
Explore Pathizer AITalk to your schedule in ChatGPT or Claude. It reads your project's results. Uploads, deletions and new analysis runs wait for your yes in the chat, and everything it does runs under your own permissions.
Watch One Update Become an Explanation
From schedule movement to an explanation you can inspect.
A deterministic engine does the schedule math; AI only drafts the language. Illustrative data from a configured milestone review: a general comparison does not require phase setup; target-specific conclusions require a confirmed milestone and supporting evidence.
Step 2
Pathizer finds the drivers.
Activities, trades and logic changes, ranked in calendar days and exposure at your stated rate. Attribution remains subject to the evidence.
Driver Attribution
UD03 → UD04ActivityTradeImpact
Electrical Rough-In Area BElectrical-14 CD
Drywall Finish Level 3Drywall-9 CD
Steel Sequence L12Steel+6 CD
Trade Risk Attribution
$5K / CDElectrical Trade$70K exposure
Drywall Trade$45K exposure
Steel Trade$30K recovered
Step 3
It traces the evidence.
Each driver links to its activity IDs, relationship edits and duration changes.
Evidence Ledger
Source-linkedEV-0182UD03 → UD04EL-RGH-0440 duration 10d → 24dPath-affecting
EV-0183UD03 → UD04FS tie added A1043 → A1051Phase C path
EV-0184UD02 → UD03ST-ERC-1120 crew increaseRecovery
EV-0185UD03 → UD04OA-PNCH-0210 constraint shiftNeeds review
Step 4
Your team gets the answer.
An executive narrative and a Pathizer AI answer, both citing the update pair.
Executive Narrative
Update summaryBetween UD03 and UD04, Phase C lost float on the electrical rough-in path. EL-RGH-0440 went from 10 to 24 days, and a new FS tie now runs from A1043 to A1051.
Pathizer AI
Why did Phase C lose float?
The engine traced the Phase C float loss between UD03 and UD04 to the 14-day duration increase on EL-RGH-0440 and the new FS tie into A1051. Both appear in the evidence ledger under that update pair.
Try it on your own schedule.
Driver attribution and the evidence trace run in a project workspace.
Review my schedule update
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Find the workflow for your team.
Pathizer for Contractors
See which trade's activities drove each day of slip before the owner meeting.
- See which activities to protect before the next update goes out, and price each day of slip at the daily rate you set.
- Enter field progress once in Schedule Updater and export the next XER for your scheduler to review.
Open your latest schedule update. Add last month's to see what changed. Free, no account, no credit card required.
Pathizer for Scheduling Consultants & Project Controls
The update narrative and phase reports, drafted from one comparison of the prior and current XER.
- Get the update narrative drafted from the XER comparison, then edit it in your own words.
- Run the same update-pair comparison and DCMA-14 checks on every client project.
Open your latest schedule update. Add last month's to see what changed. Free, no account, no credit card required.
Pathizer for Claims & Forensic Consultants
Windows analysis across the full update history, with each attributed day traced to its export.
- Reconstruct the update history with source-linked findings your analysts can inspect.
- Each finding traces back to the export it came from.
Open your latest schedule update. Add last month's to see what changed. Free, no account, no credit card required.
Pathizer for Real Estate & Infrastructure Developers
See which phase is losing float before you commit to a turnover date.
- See which activities moved each phase and turnover milestone, in calendar days.
- Check whether a recovery plan was worked or only re-forecast before the next commitment.
Open your latest schedule update. Add last month's to see what changed. Free, no account, no credit card required.
Pathizer for Government & Public Owners
Read each schedule update against the prior, from XER, XML or SDEF.
- Read each contractor update against the prior one, from XER, XML or SDEF.
- Brief program leadership on milestone movement from the contractor's own file.
Open your latest schedule update. Add last month's to see what changed. Free, no account, no credit card required.
Start With Your Own Schedule
Bring the schedule you already run.
No migration and no new scheduling tool: Pathizer reads the exports you already produce. Your files stay in access-controlled project storage, you decide who sees the analysis, and you can delete your data.
- .XER
- XER schedule file
- .XML
- Schedule XML, including Microsoft Project XML
- SDEF
- USACE Standard Data Exchange Format
Works with .XER and .XML exports from Primavera P6, Microsoft Project, Asta Powerproject and Phoenix Project Manager.
Pathizer is not associated with Oracle, Microsoft, Elecosoft or Phoenix CPM. Product names and logos are trademarks of their owners.
Open your latest schedule update.
Add last month's to see what changed. The free tools need no account.
Each finding traces back to the schedule export it came from.
When the update history cannot tie a day of movement to a party, Pathizer leaves that day unattributed. It does not split the day pro rata or round it into the largest share.