Guides
The honest version of how the work gets done.
Long-form, practitioner-written explainers on project controls techniques. Plain English, UK perspective. Written for planners, cost engineers, risk managers and programme directors — not for textbooks.
Browse by topic
Four areas we write about most.
Topic
Quantitative risk analysis (QRA)
How quantitative risk analysis is actually run on UK programmes — workshop facilitation, three-point estimate calibration, Monte Carlo, P-level interpretation, and writing up a QRA report a board can act on. SOMA delivers QRA to AACE recommended practice.
Explore this topic →Guide
The Honest Guide to QRA
What Quantitative Risk Analysis actually is, when you need it, how it works, and how to tell a good one from a bad one.
10 min read
Guide
Monte Carlo Simulation Is Not Magic — What QRA Actually Does (and Doesn't Do)
What Monte Carlo simulation actually is in three sentences, what it does well in QRA, garbage-in-garbage-out, merge bias, correlation, and how to read the S-curve output for a board or finance committee.
9 min read
Guide
QSRA vs QCRA: Meaning, Methodology, and When Each Is the Right Answer
Two of the most important tools in quantitative risk analysis, frequently confused. Here is what each acronym means, how the methodologies differ, what each produces, and how to decide which your programme needs — with worked UK rail, water and nuclear examples.
8 min read
Guide
P50, P80, P95 in Cost Estimation: Which Confidence Level Should You Actually Use?
P50 is the IPA-required central estimate for UK capital cost. P80 is the UK departmental sensitivity convention. P95 is for safety-critical programmes and portfolio-level safeguards. How to pick the right confidence level for project sanction — and what HM Treasury Green Book and IPA Cost Estimating Guidance actually say, versus the working conventions departments use in practice.
9 min read
Guide
Capital Project Estimate Confidence Level — A Sponsor's Guide to P50, P80, P95 and IPA Cost Bands
For project sponsors, treasury teams, investment committees and capital approval boards. What "confidence level" actually means on a cost estimate, what the IPA Cost Estimating Requirements specify at each stage gate, when P80 is the right upper-bound sensitivity, and what to challenge in the QRA your project team has put in front of you.
12 min read
Guide
Three-Point Estimate Calibration — What Low, Most-Likely, High Should Actually Mean
The difference between a QRA that works and a QRA that produces theatre usually comes down to how the three-point estimates were elicited. A practical guide to doing it properly — and to the PERT formula (O + 4M + P) / 6 and the (O + 3M + P) / 5 variant.
10 min read
Guide
Running a QRA Workshop That Actually Works
Most QRA workshops produce numbers nobody really stands behind. This is how to run one that produces inputs you can defend at a gateway review.
13 min read
Guide
How to Run a Pre-Mortem: The Risk Workshop That Finds What Brainstorming Misses
Gary Klein's pre-mortem technique, adapted for UK project controls — the facilitation script, the questions that work, and how to turn the output into a risk register that survives gateway review.
8 min read
Guide
QSRA Readiness — What a Schedule Needs Before the Monte Carlo Runs
Why DCMA 14-point, CIOB PP21 and Acumen Fuse SQI each answer a different question, what risk-load readiness actually means, and the specific failure modes that kill a QSRA before the simulation has a chance.
11 min read
Guide
Integrated Cost-Schedule Risk Analysis — When EMV Isn't Enough
Why running cost QRA and schedule QRA separately misses the real exposure, how integrated analysis actually works, and when to recommend it to a client.
11 min read
Guide
Writing a QRA Report That Survives Gateway Review
What makes the difference between a QRA report that gives an IPA reviewer confidence and one that triggers a recommendation to redo the work. Practical guide for UK public-sector programmes.
8 min read
Guide
Structuring a Risk Register So It's QRA-Ready From Day One
Most risk registers cannot be quantified without rebuilding them. This guide covers the structural choices that make a register QRA-compatible from the start — and the ones that force you to start over.
9 min read
Topic
Schedule quality, DCMA and Primavera P6
What a defensible programme looks like and how to read one that someone else built. DCMA 14-point assessment, the failure modes of an S-curve, baseline integrity, Primavera P6 versus MS Project, and challenging a contractor’s schedule without starting a fight.
Explore this topic →Guide
Critical Path Method: How UK Programmes Actually Use CPM
CPM textbook explanations stop at forward pass and backward pass. UK infrastructure, defence and nuclear programmes need more — near-critical paths, risk-adjusted criticality, NEC4 Clause 32 alignment, and how DCMA-14 actually tests the network logic. A practitioner's guide to using CPM on real programmes.
12 min read
Guide
Reading a DCMA 14 Result Properly
What each metric actually catches, the metrics that mislead more than they help, and how to write a credible review report — not just paste the dashboard.
12 min read
Guide
The DCMA 14-Point Schedule Assessment — What It Is and How UK Programmes Use It
A practical guide to the DCMA 14-point schedule health check — what each metric measures, what the thresholds mean, and how to use it on UK infrastructure programmes.
10 min read
Guide
Why Your S-Curve Is Lying to You
S-curves are the most widely used reporting tool in project controls — and one of the most routinely misleading. Here is what goes wrong and how to fix it.
9 min read
Guide
The Baseline You Can Actually Defend
How to set a controls baseline that survives the project — scope, schedule, cost — and how to tell legitimate rebaselining from commercial cover-up.
11 min read
Guide
Primavera P6 for People Who Inherited It
A practical two-hour audit checklist for the PM or planner who has just been handed someone else's P6 database — what to check, what to fix, and what to leave alone.
10 min read
Guide
Primavera P6 vs Microsoft Project — Which Is Right for Your Programme?
An honest comparison for UK project controls practitioners — what each tool does well, where each falls short, and how to decide without the vendor pitch.
8 min read
Guide
Reading a Contractor's Schedule You Didn't Build
What to check first when a new programme lands on your desk mid-project, how to tell an honest schedule from a padded one, and how to brief your client without starting a war.
11 min read
Guide
How to Challenge a Contractor's Schedule (Without Starting a Fight)
The questions that distinguish a robust programme from a presentation schedule — and how to ask them without triggering a dispute.
8 min read
Topic
Earned value (EVM) and cost contingency
Earned value the way the contract actually requires it, not the textbook version. CPI failure modes, cost versus schedule contingency, EVM under NEC4, and the maturity model that distinguishes a working controls function from one going through the motions.
Explore this topic →Guide
When CPI Is Lying — The Hidden Failure Modes of Earned Value
Why your CPI and SPI can look healthy on a project that is quietly falling apart, what to look at instead, and when to abandon earned value altogether.
10 min read
Guide
Cost vs Schedule Contingency — and Why Teams Confuse Them
The structural difference between cost and schedule contingency, how three-point estimates feed both, the EMV vs QRA distinction, and how to defend the contingency number in a board paper.
10 min read
Guide
Budget at Completion (BAC): Formula, Worked Example, and Where Projects Get It Wrong
A practitioner's walkthrough of how BAC is set, how it relates to EAC, VAC and EVM, and the housekeeping mistakes that quietly invalidate the metric on real programmes.
7 min read
Guide
Earned Value Management Under NEC4 — What the Contract Actually Requires
How EVM and NEC4 interact, what the contract demands, and how to build a system that satisfies both the commercial team and the programme director.
9 min read
Guide
Project Controls Day Rates UK 2026 — Benchmarks by Role and Sector
Realistic day rate benchmarks for planners, cost engineers, risk managers and PMO leads across UK infrastructure — inside and outside IR35.
7 min read
Guide
Project Controls Maturity — What "Good" Actually Looks Like
A practical view of what a well-run controls function looks like on a real programme — single source of truth, monthly cadence, honest reporting — without the five-level pyramid.
10 min read
Guide
Reporting That Actually Gets Read at Steering Group
Why most controls reports are ignored, what an effective monthly pack looks like, and how to calibrate to the audience without diluting the message.
10 min read
Topic
NEC4 programme controls
How NEC4 actually changes the day-to-day controls function. Schedule risk under NEC, Clause 15 in practice, Early Warnings as a working mechanism (not a register that gets ignored), and the integration points with EVM.
Explore this topic →Guide
NEC4 and Schedule Risk — What the Contract Actually Expects
A plain-English guide to Clauses 31 and 32, the Accepted Programme, float allocation, compensation events, and the most common mistakes contractors and project managers make.
11 min read
Guide
NEC4 Clause 15: What Schedule Risk Looks Like in Practice
Why the compensation event mechanism makes schedule assurance non-optional — and what good looks like.
9 min read
Guide
NEC4 Clause 32: Programme Revisions and the Acceptance Loop
NEC4 Clause 32 governs how the Accepted Programme is kept current. The Contractor revises at intervals, after each compensation event, and on PM instruction. Here is what every revision must contain, why PM silence is not acceptance, and the common failures that hurt at Clause 63 quantum.
9 min read
Guide
NEC4 Early Warnings — Clause 15, Risk Reduction Meetings, Early Warning Register
Clause 15 and 16 under NEC4 — what triggers an early warning, how the Early Warning Register sits alongside the Accepted Programme, risk reduction meeting mechanics, and why early warnings are a protection tool rather than an admission of failure.
10 min read
Guide
Earned Value Management Under NEC4 — What the Contract Actually Requires
How EVM and NEC4 interact, what the contract demands, and how to build a system that satisfies both the commercial team and the programme director.
9 min read
Topic
Defence & government project controls
Project controls for UK defence and government programmes operates under a framework with no commercial equivalent — CADMID lifecycle phases, MoD MPRP gateways, IPA assurance, and mandatory EVMS on many contracts. These guides are written for controls practitioners who work in the sector.
Explore this topic →Guide
Project Controls in UK Defence — CADMID Lifecycle, MPRP Gateways, IPA Assurance
A practitioner's guide to project controls on UK defence programmes — what the controls function must deliver across the six CADMID phases, how MoD MPRP, IPA and DEF STAN test it, and where SOMA's defence consultancy work plugs in.
11 min read
Guide
CADMID Concept Phase: Project Controls Deliverables and Failure Modes
The Concept phase is where the controls function earns its right to be in the room — or fails to. A practitioner's view of what project controls must deliver at MoD CADMID Concept, what IPA Gateway 1 reviewers actually test, and the failure modes that recur on real programmes.
8 min read
Guide
CADMID Assessment Phase: Full Business Case, QCSRA and Main Gate
Assessment is where the option set is narrowed, the Performance Measurement Baseline is shaped, and the Full Business Case is built for Main Gate. A practitioner's view of what project controls must deliver, what IPA Gate 2 / 3 reviewers test, and the failure modes that get programmes red-rated.
9 min read
Guide
CADMID vs PRINCE2: How the UK MoD Lifecycle Differs from Generic PM
CADMID is a defence acquisition lifecycle. PRINCE2 is a generic project-management method. They do different jobs and they are not interchangeable. A practitioner's view of where each one belongs, what controls each demands, and how they coexist on real UK defence programmes.
9 min read
Full library
Every guide.
36 guides — newest first.
Guide
Critical Path Method: How UK Programmes Actually Use CPM
CPM textbook explanations stop at forward pass and backward pass. UK infrastructure, defence and nuclear programmes need more — near-critical paths, risk-adjusted criticality, NEC4 Clause 32 alignment, and how DCMA-14 actually tests the network logic. A practitioner's guide to using CPM on real programmes.
12 min read
Guide
NEC4 Clause 32: Programme Revisions and the Acceptance Loop
NEC4 Clause 32 governs how the Accepted Programme is kept current. The Contractor revises at intervals, after each compensation event, and on PM instruction. Here is what every revision must contain, why PM silence is not acceptance, and the common failures that hurt at Clause 63 quantum.
9 min read
Guide
Budget at Completion (BAC): Formula, Worked Example, and Where Projects Get It Wrong
A practitioner's walkthrough of how BAC is set, how it relates to EAC, VAC and EVM, and the housekeeping mistakes that quietly invalidate the metric on real programmes.
7 min read
Guide
How to Run a Pre-Mortem: The Risk Workshop That Finds What Brainstorming Misses
Gary Klein's pre-mortem technique, adapted for UK project controls — the facilitation script, the questions that work, and how to turn the output into a risk register that survives gateway review.
8 min read
Guide
Capital Project Estimate Confidence Level — A Sponsor's Guide to P50, P80, P95 and IPA Cost Bands
For project sponsors, treasury teams, investment committees and capital approval boards. What "confidence level" actually means on a cost estimate, what the IPA Cost Estimating Requirements specify at each stage gate, when P80 is the right upper-bound sensitivity, and what to challenge in the QRA your project team has put in front of you.
12 min read
Guide
CADMID vs PRINCE2: How the UK MoD Lifecycle Differs from Generic PM
CADMID is a defence acquisition lifecycle. PRINCE2 is a generic project-management method. They do different jobs and they are not interchangeable. A practitioner's view of where each one belongs, what controls each demands, and how they coexist on real UK defence programmes.
9 min read
Guide
CADMID Concept Phase: Project Controls Deliverables and Failure Modes
The Concept phase is where the controls function earns its right to be in the room — or fails to. A practitioner's view of what project controls must deliver at MoD CADMID Concept, what IPA Gateway 1 reviewers actually test, and the failure modes that recur on real programmes.
8 min read
Guide
CADMID Assessment Phase: Full Business Case, QCSRA and Main Gate
Assessment is where the option set is narrowed, the Performance Measurement Baseline is shaped, and the Full Business Case is built for Main Gate. A practitioner's view of what project controls must deliver, what IPA Gate 2 / 3 reviewers test, and the failure modes that get programmes red-rated.
9 min read
Guide
Running a QRA Workshop That Actually Works
Most QRA workshops produce numbers nobody really stands behind. This is how to run one that produces inputs you can defend at a gateway review.
13 min read
Guide
P50, P80, P95 in Cost Estimation: Which Confidence Level Should You Actually Use?
P50 is the IPA-required central estimate for UK capital cost. P80 is the UK departmental sensitivity convention. P95 is for safety-critical programmes and portfolio-level safeguards. How to pick the right confidence level for project sanction — and what HM Treasury Green Book and IPA Cost Estimating Guidance actually say, versus the working conventions departments use in practice.
9 min read
Guide
Three-Point Estimate Calibration — What Low, Most-Likely, High Should Actually Mean
The difference between a QRA that works and a QRA that produces theatre usually comes down to how the three-point estimates were elicited. A practical guide to doing it properly — and to the PERT formula (O + 4M + P) / 6 and the (O + 3M + P) / 5 variant.
10 min read
Guide
Writing a QRA Report That Survives Gateway Review
What makes the difference between a QRA report that gives an IPA reviewer confidence and one that triggers a recommendation to redo the work. Practical guide for UK public-sector programmes.
8 min read
Guide
Structuring a Risk Register So It's QRA-Ready From Day One
Most risk registers cannot be quantified without rebuilding them. This guide covers the structural choices that make a register QRA-compatible from the start — and the ones that force you to start over.
9 min read
Guide
NEC4 Clause 15: What Schedule Risk Looks Like in Practice
Why the compensation event mechanism makes schedule assurance non-optional — and what good looks like.
9 min read
Guide
How to Challenge a Contractor's Schedule (Without Starting a Fight)
The questions that distinguish a robust programme from a presentation schedule — and how to ask them without triggering a dispute.
8 min read
Guide
QSRA vs QCRA: Meaning, Methodology, and When Each Is the Right Answer
Two of the most important tools in quantitative risk analysis, frequently confused. Here is what each acronym means, how the methodologies differ, what each produces, and how to decide which your programme needs — with worked UK rail, water and nuclear examples.
8 min read
Guide
Earned Value Management Under NEC4 — What the Contract Actually Requires
How EVM and NEC4 interact, what the contract demands, and how to build a system that satisfies both the commercial team and the programme director.
9 min read
Guide
The DCMA 14-Point Schedule Assessment — What It Is and How UK Programmes Use It
A practical guide to the DCMA 14-point schedule health check — what each metric measures, what the thresholds mean, and how to use it on UK infrastructure programmes.
10 min read
Guide
Project Controls in UK Defence — CADMID Lifecycle, MPRP Gateways, IPA Assurance
A practitioner's guide to project controls on UK defence programmes — what the controls function must deliver across the six CADMID phases, how MoD MPRP, IPA and DEF STAN test it, and where SOMA's defence consultancy work plugs in.
11 min read
Guide
Project Controls Day Rates UK 2026 — Benchmarks by Role and Sector
Realistic day rate benchmarks for planners, cost engineers, risk managers and PMO leads across UK infrastructure — inside and outside IR35.
7 min read
Guide
Primavera P6 vs Microsoft Project — Which Is Right for Your Programme?
An honest comparison for UK project controls practitioners — what each tool does well, where each falls short, and how to decide without the vendor pitch.
8 min read
Guide
QSRA Readiness — What a Schedule Needs Before the Monte Carlo Runs
Why DCMA 14-point, CIOB PP21 and Acumen Fuse SQI each answer a different question, what risk-load readiness actually means, and the specific failure modes that kill a QSRA before the simulation has a chance.
11 min read
Guide
Reading a Contractor's Schedule You Didn't Build
What to check first when a new programme lands on your desk mid-project, how to tell an honest schedule from a padded one, and how to brief your client without starting a war.
11 min read
Guide
When CPI Is Lying — The Hidden Failure Modes of Earned Value
Why your CPI and SPI can look healthy on a project that is quietly falling apart, what to look at instead, and when to abandon earned value altogether.
10 min read
Guide
Integrated Cost-Schedule Risk Analysis — When EMV Isn't Enough
Why running cost QRA and schedule QRA separately misses the real exposure, how integrated analysis actually works, and when to recommend it to a client.
11 min read
Guide
The Baseline You Can Actually Defend
How to set a controls baseline that survives the project — scope, schedule, cost — and how to tell legitimate rebaselining from commercial cover-up.
11 min read
Guide
Primavera P6 for People Who Inherited It
A practical two-hour audit checklist for the PM or planner who has just been handed someone else's P6 database — what to check, what to fix, and what to leave alone.
10 min read
Guide
Project Controls Maturity — What "Good" Actually Looks Like
A practical view of what a well-run controls function looks like on a real programme — single source of truth, monthly cadence, honest reporting — without the five-level pyramid.
10 min read
Guide
Reporting That Actually Gets Read at Steering Group
Why most controls reports are ignored, what an effective monthly pack looks like, and how to calibrate to the audience without diluting the message.
10 min read
Guide
NEC4 Early Warnings — Clause 15, Risk Reduction Meetings, Early Warning Register
Clause 15 and 16 under NEC4 — what triggers an early warning, how the Early Warning Register sits alongside the Accepted Programme, risk reduction meeting mechanics, and why early warnings are a protection tool rather than an admission of failure.
10 min read
Guide
NEC4 and Schedule Risk — What the Contract Actually Expects
A plain-English guide to Clauses 31 and 32, the Accepted Programme, float allocation, compensation events, and the most common mistakes contractors and project managers make.
11 min read
Guide
Monte Carlo Simulation Is Not Magic — What QRA Actually Does (and Doesn't Do)
What Monte Carlo simulation actually is in three sentences, what it does well in QRA, garbage-in-garbage-out, merge bias, correlation, and how to read the S-curve output for a board or finance committee.
9 min read
Guide
The Honest Guide to QRA
What Quantitative Risk Analysis actually is, when you need it, how it works, and how to tell a good one from a bad one.
10 min read
Guide
Why Your S-Curve Is Lying to You
S-curves are the most widely used reporting tool in project controls — and one of the most routinely misleading. Here is what goes wrong and how to fix it.
9 min read
Guide
Reading a DCMA 14 Result Properly
What each metric actually catches, the metrics that mislead more than they help, and how to write a credible review report — not just paste the dashboard.
12 min read
Guide
Cost vs Schedule Contingency — and Why Teams Confuse Them
The structural difference between cost and schedule contingency, how three-point estimates feed both, the EMV vs QRA distinction, and how to defend the contingency number in a board paper.
10 min read
Need something explained that isn't here yet?
If there is a project controls topic you would like us to cover, or you want to talk through how these techniques apply to your programme, get in touch.