The estimate, the schedule, the risk and the portfolio in one connected model, so executives see every project the way the schedule sees it.
Budget, earned and spent, at completion, SPI and CPI, peak manpower, schedule health and the estimate basis, across every project in the workspace.
Owners run many projects with few planners. Deltasys keeps the estimate, the schedule and the performance figures in one model, so the numbers at the executive table are the numbers the planner is working from.
Six capabilities on one model. Each is a view of the same projects, so there is nothing to reconcile.

KPIs, cash flow, manpower, timeline and health across every project, grouped on two levels by division, OBS, portfolio, client or status.

WBS, activities, logic and constraints on a critical path engine verified against the industry's leading scheduler, with calendars, resources, leveling and layouts.

Classed estimates with rate build-ups, quantities, benchmarks, quotes and a basis of estimate, handed to the schedule as a resource-loaded baseline.

PV, EV, AC, SPI, CPI, EAC and TCPI from the schedule and the actuals, period by period, with recorded updates and S-curves.

Cash flow and manpower forecasts, Monte Carlo schedule and cost risk with a register, P-dates and drivers, across the portfolio.

Change requests modelled as what-if scenarios before approval, a full change log, and printable report packs for the project and the portfolio.
Monte Carlo simulation samples every estimate and the register's risk events and reschedules the whole network each iteration, so the P-dates and the cost at completion come from the same logic, calendars and constraints the plan is built on.



Three-point estimates by activity or in bulk, correlation within a WBS, risk factors and weather calendars, probabilistic branches and links, cost uncertainty on rates and expenses.
The contingency a P80 date needs, which activities and risks drive the spread, how much a response buys, and a printable risk report with the register and the distributions.
Runs before and after responses, with and without a change, are saved as scenarios and compared on one chart.
A finish date is a prediction. Deltasys treats it as one: several families of model, each suited to a different question, run on the live schedule, the actuals and the history of your own projects, and every answer comes with its range and the drivers behind it.
Monte Carlo over durations, costs, risk events and weather. Thousands of reschedules give the finish and cost distributions, P50, P80 and P90, and the drivers.
"What date can we commit to at 80 percent confidence?"
Earned value extrapolation: the cost and the date the current SPI, CPI and schedule-cost indices lead to, with TCPI and the window of outcomes between them.
"If we keep performing like this, where do we land?"
Change a scope, a crew, a start or a logic tie and the engine reschedules, levels and re-forecasts the whole project before anyone approves the change.
"What happens to the outage if the parts arrive two weeks late?"
Gradient-boosted and neural models trained on your completed projects: how durations, productivity and change really behaved by discipline, crew and season, so new estimates start calibrated.
"How long do our piping tie-ins actually take?"
Statistical and learned models fitted to the recorded S-curves, cash flow and manpower, projecting each period forward with a confidence band and flagging departures from the baseline early.
"Are we slipping, or is this normal for month four?"
A large language model reads the schedule, the risk run and the period's changes, checks logic and resourcing against planning practice, and drafts the forecast narrative for the report pack with every figure traced to the model that produced it.
"Explain this month's forecast to the steering committee."
Every forecast reschedules the real network with its logic, calendars and constraints. Nothing is predicted from a spreadsheet of dates.
Each figure comes with the activities, risks and assumptions that moved it, and the inputs are visible and editable.
Historical models train only on your workspace. Your data is not pooled with anyone else's and never leaves your deployment.
Models propose, people approve. Forecasts are recorded by period with the method used, so each one can be audited later.
Engine timings measured on the development workstation; scheduler agreement measured on a reference set of projects scheduled in the industry-standard enterprise scheduling software. Your results depend on your projects and hardware.
A few of the views planners and executives work in. All of them read the same projects; none of them is a report built on the side.
























Each stage reads the one before it. The estimate becomes the baseline, progress updates the forecast, and the portfolio totals the lot. The same numbers at every level.
Rate build-ups, quantities, a risk log and a basis of estimate, Class 5 to Class 1.
WBS, logic, calendars, crews and limits; leveled; baselined; the critical path verified.
Updates to a new data date, SPI and CPI, forecasts, what-if scenarios, change requests, risk runs.
Cash flow, manpower, health and estimate basis across every project, with the report pack.
Deltasys exchanges schedules with the industry's leading enterprise scheduling software through the standard XER format: projects, calendars, WBS, activities, relationships, resources, assignments, expenses, activity codes and steps. Schedules round-trip, and the critical path results match on the same inputs. Estimates come in from spreadsheets and bills of material, and every table leaves as CSV or Excel.
A schedule is only as good as the actuals behind it. Deltasys takes cost, commitment, timesheet and progress data from your ERP, finance and field systems, and sends forecasts, cash flow and earned value back out, so the project controls numbers and the finance numbers are the same numbers.
General ledger, project accounting and procurement systems.
The industry's leading enterprise schedulers, through the standard XER format.
Cost databases, quantity takeoff and bid systems.
Timekeeping, crew management and progress capture.
Engineering document and drawing registers.
Dashboards and data warehouses.
XER for schedules, Excel and CSV for everything else. Column mappings for an ERP export are saved and reused every period.
Read and write projects, enterprise setup and workspace members as JSON. Every write carries a version, so two systems never overwrite each other silently.
For enterprise deployments we build and run the connector to your finance system on your schedule, with field mapping, reconciliation and an audit trail of every load.
Connections to these systems use their standard export and import formats or published interfaces. Product names are the property of their respective owners; no affiliation, sponsorship or endorsement is implied.
Deltasys is in beta. Every workspace is free while the platform is finished; paid plans will be announced with notice, and nothing you build is locked in.
Yes. Deltasys is a project controls platform that works alongside the industry's leading enterprise scheduling software. Schedules move both ways as XER files, and the critical path results match on the same inputs. Many owners keep their existing system as the enterprise record and use Deltasys for the planning, estimating, performance and portfolio work around it.
In your browser and, with a folder, in autosave files with daily backups. With a cloud workspace, projects are also kept on the Deltasys server in Toronto, Canada, shared with the members you invite.
Yes. It keeps working without a connection; a cloud workspace syncs when you are back online, and a newer version saved by someone else is never overwritten silently.
Each iteration samples a duration for every activity from its three-point estimate (triangle, BetaPERT or uniform), applies correlation, risk factors, weather and the register's events that occur in that iteration, and reschedules the network with its logic, calendars and constraints. Thousands of iterations give the finish and cost distributions, the percentiles, each activity's criticality and sensitivity, and the cash-flow bands. Latin hypercube sampling and a fixed seed make a run repeatable.
A statement of how well defined the scope was when the estimate was made, from Class 5 at concept screening to Class 1 at detailed design, in the manner of the AACE International classification practice. Deltasys records the class of the estimate and of the schedule on every project and flags any mismatch.
Yes. Calendars with shifts and holidays, resource crews and limits, leveling, baselines, progress updates and risk analysis cover outage and turnaround planning as well as capital projects.

Scheduling, resources, baselines, progress, earned value, risk and change for every project.
Open the Planner with demo data →
Classed estimates with rate build-ups, quantities, rules of credit and a basis of estimate, handed to the Planner as a baseline.
Open the Estimator with a sample estimate →
The executive window: KPIs, cash flow, manpower, timeline, estimate basis and the report pack across the workspace.
Open the Portfolio with demo data →Start in the browser today, or tell us about your projects and we will reply within one business day. No sales sequence, just a planner who can answer the question.
Prefer email? hello@pgrdelta.com