Independent Completion Assurance

Construction progress is not
commissioning readiness.

Proofdatum verifies handover readiness on evidence: field execution, system verification and schedule alignment in one line of sight, closing the handover gap before it costs the schedule.

Helping owners and EPCs see delay, rework and claims exposure before it lands.

Built for Complex Completion Environments

Independent support for completion governance, completion systems and commissioning readiness on complex capital projects.

FPSO & Topsides Delivery

Subsea Infrastructure

Mechanical Completion

PCMS & Completion Systems

Commissioning & Handover

Grounded in more than twenty years across offshore platforms, subsea developments, construction yards and project start-up.

The Handover Gap: Where Projects Lose Control

Construction progress does not equal commissioning readiness.

Construction
Installation Progress

Completion
Integrity Framework

Commissioning &
Startup Readiness

Bridging construction output to verified Mechanical Completion and commissioning readiness.

Only 8.5% of major capital projects finish on time and on budget.

Oxford Global Projects Database, 16,000+ projects · Bent Flyvbjerg, University of Oxford, 2023.

Complete on paper only

Projects may report 90–95% installation complete, yet subsystems remain unverified, punch dependencies unresolved and documentation incomplete.

Gaps surface late

Walkdowns frequently expose subsystem gaps late in construction, when corrective options narrow and recovery costs escalate.

Confidence becomes risk

Without system-based completion control, schedule confidence becomes schedule risk.

Independent Completion Risk Control

We integrate field execution, system-based verification, documentation integrity, and schedule intelligence to close the gap between construction progress and verified commissioning readiness.

Supporting owners and EPCs across oil & gas, LNG, renewables, decarbonisation and complex industrial assets.

Verified Readiness at Handover

System-based turnover control aligned with commissioning milestones.

Cost & Rework Visibility

Punch dependency control reducing late-stage disruption.

Claims-Exposure Evidence

Documented completion governance with defensible audit trails.

Execution & Oversight

Field-led control ensuring subsystem readiness and verified Mechanical Completion

Systems & Integration

PCMS-agnostic governance connecting schedule visibility to physical completion

Independent Governance & Assurance

Executive-level escalation and control during critical handover phases

From reported progress to verified readiness.

The Construction-to-Commissioning Gap

Discipline progress reporting often shows high installation completion while subsystems remain incomplete for safe startup.

Construction Progress

95% Installed

Installation progress is typically reported by discipline, but subsystem readiness for commissioning remains unverified.

System-Based

Completion Control

CompleCore™ applies subsystem verification to transform installation progress into verified commissioning readiness.

Readiness is confirmed through:

Commissioning Readiness

Verified subsystem ready

Subsystems are verified complete and documented, enabling safe commissioning and operational startup.

System-based completion control bridges the gap between discipline-based installation progress and verified startup readiness.

CompleCore™ deployment methodology

How Completion Risk Control Is Deployed

A structured deployment approach that restores control between construction progress and commissioning readiness through system-based completion governance.

The process below operationalizes the CompleCore™ completion integrity framework, aligning system boundaries, verification controls, documentation integrity, and schedule logic into a unified completion governance model.

Discovery & Completion Readiness Review

Assess the current completion environment, including system hierarchy, documentation integrity, and schedule alignment.

Completion Risk & Gap Analysis

Identify subsystem bottlenecks, punch dependencies, documentation gaps, and commissioning constraints impacting handover readiness.

Completion Control Integration

Embed system-based completion governance into project execution and schedule logic.

Verified Mechanical Completion & Turnover

Drive subsystem verification, punch closure, documentation integrity, and turnover readiness.

By aligning completion verification with system boundaries and schedule logic, project leadership gains early visibility of risks before they become commissioning delays

This methodology deploys the CompleCore™ architecture shown below.

Completion Integrity Architecture

A foundation-driven system that governs physical completion, verification, documentation, schedule integration, and executive oversight.

The CompleCore™ Framework

One control model, from foundation to governance

Five integrated layers take a project from physical system control to executive-level assurance. Each layer builds on verified evidence from the layer beneath it, so readiness at handover is demonstrated, not assumed.

Subsystem-based verification over discipline progress
Verified evidence over reported percent complete
Independent assurance over self-assessment

One model. Every system.

Assured readiness at handover.

Governing Overlay

Executive Governance & Risk Escalation

Independent reporting · Risk escalation

Spans Layers 1–4Continuous oversight

Schedule Integration

P6 reconciliation · Readiness analytics

Forecast confidence

Documentation Integrity

Handover dossiers · Audit-ready evidence

Defensible records

Completion Verification

ITRs · Punch control · MC certificates

Proven completion

Physical System Control

System & subsystem hierarchy · Boundary control

Controlled scope

Integrated Project Controls & Completion Visibility

CompleCore™ reconciles verified completion status with schedule logic to provide evidence-based readiness forecasting.

When schedule milestones appear on track, completion evidence confirms, or challenges, that position before delays surface at commissioning.

From Verified Completion Evidence to Schedule Confidence

STAGE 01

Completion Status Evidence

Subsystem A	78%
Subsystem B	READY
Subsystem C	Open Punch
Subsystem D	QC Hold

→

STAGE 02

Completion Readiness Verification

✓Mechanical Completion

✓Documentation Integrity

!Punch Status

→

STAGE 03

Schedule Logic Integration

Primavera P6 milestones reconciled with verified completion status.

→

STAGE 04

Schedule Readiness Forecast

✓Schedule Variance Signals

✓Risk Indicators

✓Readiness Variance Indicators

Each stage is auditable: subsystem status is built from ITR and punch records, verified through Mechanical Completion certification and documentation integrity checks, then reconciled with Primavera P6 milestone and critical-path logic. The result is early-warning visibility of commissioning readiness risk, weeks before it surfaces in discipline progress reports.

The outcome: a commissioning date you can defend, forecast from verified evidence rather than reported progress.

Not ready to talk? Start with the CompleCore™ Completion Readiness Brief.

Request a Rapid Completion Assessment

Industry Standards Alignment

ISO 21502

Project Management

ISO 21505

Governance

ISO 9001

Quality Management

ISO 31000

Risk Management

API RP 1FSC

Facilities Systems Completion

ISO 15489

Records Management

CompleCore™ draws on relevant completion, information, quality, safety and project-controls principles where appropriate to the project context.

We align our governance practice with these frameworks; we do not claim certification against them.

See how we apply each standard

Global Project Experience

Years in Project Completions

0 +

Capital Project Value Supported

US$ 0 bn+

Inspections & Tests Driven to Close-Out

0 +

Punch Items Driven to Closure

0 +

Founder-led: more than twenty years of project completions across FPSO, offshore and subsea programmes, now in independent service of project leaders. Meet the founder

Supporting complex offshore, subsea and capital project developments across Europe, Africa and Asia.

SingaporeKaombo Norte FPSO completion and handover · Kaombo Sul FPSO completion and handover · TEN FPSO-Subsea technical interface · TEN Subsea completion and handover · Sea Lion FPSO FEED

Batam, IndonesiaTEG 17,000 mT process platform completion and handover

DenmarkTyra Redevelopment · 8 platforms · carry-over clearance for safe start-up

NorwayBourbon Oceanteam 101 LCV mobilisation · AHC cranes, WROVs, IRM equipment · Subsea equipment construction and testing

AngolaB18 Greater Plutonio subsea fabrication, installation, commissioning, completion and handover, operations and IRM · Offshore, Luanda, Soyo fabrication yard

GhanaJubilee subsea Phase 1A field extension · TEN Subsea completion and handover · TEN FPSO onshore IHUC support

United KingdomJubilee Full Field FEED (London) · B18 Greater Plutonio Operations Readiness

Major completion & handover programmesFurther delivery roles: UK · Norway · France · USA

Industries We Support

Infrastructure & industrial

Power plants, water treatment, transport projects

Explore →

We work inside your existing team, tools and completion system; we do not replace them.

Ready to strengthen handover readiness?

Proofdatum helps owners and EPC teams improve completion control, evidence integrity, and schedule-readiness alignment before late-stage risk escalates.

Request a PCMS Health Check

Construction progress is not
commissioning readiness.

Built for Complex Completion Environments