1M activities in ~7 s100% critical path agreement2,000+ risk iterations in secondsAI forecast modelsClass 5 → 1 estimates and schedulesXER · Excel · CSV in and out
Cash flow and earned valueSchedule risk: P50, P80, P90Critical path and baseline
Overview
An enterprise-wide view of what drives project success, read straight from the schedules.
Stop reconciling spreadsheets. Start deciding. Budget, earned value and actuals roll up live from every schedule in the workspace, so the cash flow, SPI and CPI in the boardroom are the same numbers the planners work from. See which projects need attention this week, what the forecast finish will cost, and what it takes to bring it back.
Benefits
Meet today's project challenges.
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.
Increased efficiency and productivity
One tool from estimate to schedule to progress update
Schedules exchange with the software you already run, so nothing is retyped
Monthly report packs and executive reviews in a click
Better decision-making
Cash flow and manpower rolled up across the portfolio
Earned value, forecasts and schedule risk on every project
What-if scenarios and change requests with their impact
Greater organizational alignment
Every project placed by division, OBS, portfolio and client
An estimate class and a schedule class on every project
Shared enterprise setup: resources, OBS and WBS templates
Features
Evolve how the enterprise plans and controls work.
Six capabilities on one model. Each is a view of the same projects, so there is nothing to reconcile.
Project portfolio management
KPIs, cash flow, manpower, timeline and health across every project, grouped on two levels by division, OBS, portfolio, client or status.
Project planning and scheduling
WBS, activities, logic and constraints on a critical path engine verified against the industry's leading scheduler, with calendars, resources, leveling and layouts.
Estimating
Classed estimates with rate build-ups, quantities, benchmarks, quotes and a basis of estimate, handed to the schedule as a resource-loaded baseline.
Earned value and performance
PV, EV, AC, SPI, CPI, EAC and TCPI from the schedule and the actuals, period by period, with recorded updates and S-curves.
Forecasting and risk
Cash flow and manpower forecasts, Monte Carlo schedule and cost risk with a register, P-dates and drivers, across the portfolio.
Change control and reporting
Change requests modelled as what-if scenarios before approval, a full change log, and printable report packs for the project and the portfolio.
Risk analysis
Schedule and cost risk, run on the schedule itself.
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.
Inputs the way planners think
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.
Answers executives ask for
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.
Scenarios side by side
Runs before and after responses, with and without a change, are saved as scenarios and compared on one chart.
AI forecast modelling
Forecasts built by models, not by gut feel.
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.
Probabilistic simulation
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?"
Performance-based projection
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?"
Scenario and what-if models
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?"
Machine learning on your history
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?"
Time-series and progress-curve forecasting
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?"
Language-model review and narrative
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."
Grounded
Models run on the schedule
Every forecast reschedules the real network with its logic, calendars and constraints. Nothing is predicted from a spreadsheet of dates.
Explainable
Drivers, not black boxes
Each figure comes with the activities, risks and assumptions that moved it, and the inputs are visible and editable.
Calibrated
Learned from your projects
Historical models train only on your workspace. Your data is not pooled with anyone else's and never leaves your deployment.
Accountable
Planners keep the pen
Models propose, people approve. Forecasts are recorded by period with the method used, so each one can be audited later.
By the numbers
Deltasys by the numbers
1Mactivities scheduled in about seven seconds by the critical path engine
100%agreement with the industry-standard scheduler on early, late and float dates across the reference projects
195activity table columns, with layouts, grouping, filters and views
2,000+iterations in a risk run in seconds, in the browser, with Latin hypercube sampling
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.
Industries
Built for the people whose projects are regulated, reviewed and remembered.
Deltasys is for the firms that engineer and build capital projects and for the owners who answer for them: to a regulator, a customer, a board or the public. The common thread is accountability for the baseline, the forecast and every change in between.
Engineering and construction contractors
EPC, EPCM and general contractors who bid on a classed estimate, deliver on a resource-loaded schedule and report earned value to the owner every month. One model from the tender to the final account, exchanged with the owner's scheduler as XER.
Bid estimatesEV to the ownerXER exchangeTimecards
Engineering consultancies and owner's engineers
Firms that plan, estimate and control projects on a client's behalf, across many clients at once. A workspace per client, classed estimates with a documented basis, independent schedule review and risk analysis, and report packs ready for the steering committee.
Workspace per clientBasis of estimateSchedule qualityReport packs
Space and launch
Programmes reviewed against NASA and ESA lifecycle gates, where a slipped milestone is a public event and every forecast is challenged. Integrated baselines, risk-adjusted dates and traceable change.
Baselines and IBRP80 datesChange controlEVM
Defence and shipbuilding
Contracts that report earned value to the customer every month, with surveillance of the baseline and the change process. One model from estimate to EAC, with the history to show.
Planned outages measured in hours, refurbishments measured in years, and a regulator on site. Outage calendars, dose-constrained work, risk runs on the critical path and a portfolio of units.
Outage calendarsSchedule riskPortfolio by unitActuals by trade
Power, grid and utilities
Substations, lines, hydro and generation renewal across many sites and divisions, with rate-case scrutiny on every dollar. Division and OBS roll-ups and classed estimates behind each project.
Division roll-upEstimate classesCash flow by periodIntegrations
Data centres
Hyperscale and colocation builds where a week of delay is a contract penalty and the long-lead equipment drives everything. Procurement milestones, commissioning logic and what-if on the delivery dates.
Capital programmes answerable to councils, treasury boards and auditors. An executive view that comes straight from the schedules, with the estimate basis stated on every project.
Turnarounds, pipeline and terminal projects with strict shutdown windows and contractor crews. Timecards by activity, contractor cost actuals and cross-project links between the turnaround and the capital work.
Remote sites, seasonal access and commodity-driven go or no-go decisions. Weather calendars in the risk run, quantity-based progress and a portfolio view across operations.
Validated facilities where the commissioning and qualification sequence is the schedule, and change must be documented. Steps and rules of credit, change requests with history, printable packs.
Rules of creditChange historyCommissioning logicDocument dates
Transit and rail
Multi-year programmes with possession windows, many contractors and a public timetable. Calendar exceptions, XER exchange with contractors and a portfolio timeline against the baseline.
Municipal and regional capital plans with dozens of mid-sized projects and a small controls team. One planner can keep every project current and the council's report pack ready.
Many small projectsMonthly report packCash flowFew planners
Aerospace manufacturing
Rate ramps, tooling and facility programmes tied to delivery commitments. Resource-loaded baselines, timesheets from the floor and earned value by work package.
Resource loadingFloor timesheetsEV by work packageForecast to complete
The practices they report against
Deltasys is built around the methods these programmes are measured by, so the figures in the review are the figures the method expects.
Earned value management in the manner of EIA-748 and the DoD and NASA EVM guidance: PMB, PV, EV, AC, variances, EAC, TCPI, by period and by work package.
Estimate classification after the AACE International recommended practice: Class 5 to Class 1 with definition, methodology and accuracy range on every estimate.
Schedule quality assessed against the DCMA 14-point checks: logic, leads and lags, constraints, float, duration, missed tasks, critical path test and length index.
Integrated baseline review support: a resource-loaded baseline with its estimate basis, risk analysis and the change history that moved it.
Schedule risk analysis as the GAO schedule and cost guides describe it: three-point estimates, correlation, risk events from a register, P-dates and drivers.
Change control with a request, an impact modelled before approval, a decision, an implementation and a log of who changed what.
Standards and guides are named to describe the practices the product supports; no certification, accreditation or endorsement by any body is claimed.
Inside the product
Every pane, every panel, one model.
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.
Portfolio manpowerResource histogramProgress curvesOBS and enterprise setupForecast by periodEstimate cash flowSkylineEstimate risk logProjects: performance columnsCloud workspaceEnterprise resourcesRates and build-upsPortfolio manpowerResource histogramProgress curvesOBS and enterprise setupForecast by periodEstimate cash flowSkylineEstimate risk logProjects: performance columnsCloud workspaceEnterprise resourcesRates and build-ups
How it fits together
One model from the first estimate to the executive review.
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.
01
A classed estimate
Rate build-ups, quantities, a risk log and a basis of estimate, Class 5 to Class 1.
02
A resource-loaded baseline
WBS, logic, calendars, crews and limits; leveled; baselined; the critical path verified.
03
Progress, earned value, change
Updates to a new data date, SPI and CPI, forecasts, what-if scenarios, change requests, risk runs.
04
The executive view
Cash flow, manpower, health and estimate basis across every project, with the report pack.
Cross-compatibility
Keep the software you already run. Add what it does not do.
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.
XER import and exportMultiple projects in one fileCross-project relationshipsOBS and project codesBaselines from other projectsExcel and CSVPrintable PDF report packs
A typical month
The planner updates progress to the new data date and records the period.
The estimate, schedule and actuals produce the earned value and the forecast.
Change requests are modelled as scenarios before they are approved.
The portfolio rolls every project up for the executive review, with the report pack.
The schedule goes back to the enterprise system of record as an XER.
Why switch
Paying for last century's architecture, or working around a desktop tool? There is a third way.
Most owners run Primavera P6 or P6 EPPM, or Microsoft Project. Both were built for a different era and a different user. Deltasys was built for owners who need the estimate, the schedule, the actuals, the risk and the portfolio in one place, in the browser, this afternoon.
If you run Primavera P6 or P6 EPPM
Powerful. Heavy. Expensive to keep.
A client-server system from another era: a database server, an application server, a Windows client or a Java web client, and the IT staff and annual support to keep them patched.
Licensed per seat with yearly maintenance, so planners get seats and executives get PDFs. The people who make the decisions rarely see the live schedule.
Scheduling only. Estimating, timesheets, risk analysis, earned value reporting and the portfolio view are separate products, add-on modules or spreadsheets, each with its own export and its own reconciling.
Nothing for the field and nothing for the boardroom without further licences.
With Deltasys: your XER opens in the browser in seconds with its calendars, resources, codes and logic intact; the critical path agrees with P6 on the same inputs; everyone who needs the schedule can see it; and the estimate, actuals, risk, change and portfolio live in the same model, not in five others.
If you run Microsoft Project
Familiar. Personal. Not project controls.
A desktop tool for one planner and one file. Sharing means emailing copies; a portfolio means the server edition and more licences.
No estimate behind the schedule, no resource rate build-ups, no quantities or rules of credit, no risk register, no Monte Carlo, no change control. Earned value is a column, not a process.
Actuals come from somewhere else and are typed in; the forecast is whatever the planner last adjusted by hand.
It does not speak XER, so it cannot sit alongside the enterprise systems your contractors and consultants use.
With Deltasys: the same ease of use, in a browser, on a model that also carries the estimate, the actuals, the risk and the change, rolls up across every project, and exchanges XER with the rest of the industry.
What you need
Deltasys
Primavera P6 / P6 EPPM
Microsoft Project
Runs in the browser, nothing to install or administer
Yes
Web client needs servers and administration
Desktop; server edition for sharing
Critical path scheduling with calendars, resources, leveling, codes
Yes, verified against P6 results
Yes
Yes, simpler
Estimate in the same model, handed over as the baseline
Yes, classed Class 5 to 1
Separate product or spreadsheet
No
Earned value: PV, EV, AC, SPI, CPI, EAC, TCPI by period
Yes, with recorded updates and thresholds
Figures; reporting elsewhere
Basic columns
Timesheets by project activity with approval
Yes, Time Control
Separate module
No
Monte Carlo schedule and cost risk, register, P-dates
Yes, built in
Separate product
No
Change requests modelled as scenarios before approval
Yes
No
No
Portfolio roll-up: cash flow, manpower, KPIs by division and OBS
Yes, live from the schedules
EPPM dashboards, more licences
Server edition
XER exchange with the rest of the industry
Import and export, multi-project
Native
No
An assistant that reads the live project
Yes
No
No
Licensing
Free during the beta; per seat after, executives included
Per seat plus annual support; modules extra
Per user; server edition extra
Comparison based on each product's published documentation and typical deployments as we understand them at the time of writing; capabilities and licensing vary by edition and change over time. Primavera and P6 are trademarks of Oracle Corporation; Microsoft Project is a trademark of Microsoft Corporation. No affiliation or endorsement is implied.
How owners switch
Keep the schedules. Change the tool.
Nobody rebuilds a programme to change software. The switch runs alongside what you have, one project at a time, with the enterprise system still the record until you decide otherwise.
01
Open your XER
Projects, calendars, WBS, activities, logic, resources, assignments, codes and steps come in as they are. Check the dates against your scheduler: they match.
02
Run one project in parallel
Update progress, load actuals, run the risk analysis and the executive dashboard in Deltasys for a period. Export the XER back so the record stays whole.
03
Bring the rest of the model
Add the estimate and its class, the timesheets, the risk register and the change requests. This is what the old tool never held.
04
Retire the licences you no longer need
Keep a seat or two for exchange with contractors if you want; move the planners, the field and the boardroom to Deltasys.
You keepYour schedules and baselinesYour activity IDs, codes and WBSYour calendarsYour resource list and ratesXER exchange with contractorsYour reporting calendar
Integrations
Connected to the systems your finance, procurement and site teams already run.
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.
What moves, and which way
InCost codes, budgets and the chart of accounts, so the WBS and the ledger line up from day one.
InActual costs, commitments, purchase orders, invoices and accruals by period, posted against activities and resources.
InTimesheets, crew hours and installed quantities from timekeeping and field systems, driving progress and earned value.
OutCash-flow forecasts, estimates at completion, accrual estimates and resource-loaded baselines, back to finance and treasury.
OutSchedules as XER, and every table as Excel or CSV, to the enterprise scheduler, document control and BI tools.
ERP and finance
General ledger, project accounting and procurement systems.
Quantities, rates, assemblies, bills of materialClassed estimates, basis of estimate, resource-loaded baselines
Time and field data
Timekeeping, crew management and progress capture.
Hours by crew and activity, installed quantities, daily reportsPlanned hours, look-aheads, crew schedules
Document control
Engineering document and drawing registers.
Document and drawing status, issue dates, review cyclesSchedule dates for deliverables, milestone status
BI and reporting
Dashboards and data warehouses.
Portfolio KPIs, S-curves, histograms, risk results, change logsEvery table as CSV or Excel, every report as PDF
Files
Standard formats, mapped once
XER for schedules, Excel and CSV for everything else. Column mappings for an ERP export are saved and reused every period.
API
A REST API with versioned projects
Read and write projects, enterprise setup and workspace members as JSON. Every write carries a version, so two systems never overwrite each other silently.
Connectors
Scheduled connectors for your ERP
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.
Commonly connected systems
SAP S/4HANA and SAP PSOracle Fusion Cloud ERPOracle JD EdwardsMicrosoft Dynamics 365Sage Intacct and Sage 300 CREWorkday FinancialsNetSuiteProcoreAconexPower BITableauExcel
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.
Pricing
Simple plans. Start free today.
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.
Personal
Free
For one planner, with a free account
Every planning, scheduling and estimating feature
Projects kept in the browser and an autosave folder
Does it work with the scheduling software we already have?
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.
Can I try it without an account?
Yes: the demo opens in the browser with seven illustrative projects, and you can browse every window, panel and report. Making changes, opening your own files and creating projects need a free account, which takes a minute.
Where is my data kept?
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.
Does it work offline?
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.
How does the risk analysis work?
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.
What is an estimate class?
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.
Can I use it for outages and turnarounds?
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.
The products
Four windows on one model.
Deltasys Planner
Scheduling, resources, baselines, progress, earned value, risk and change for every project.
Put the portfolio and the schedule in the same model.
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.
