WBAs for the Portfolio Pathway are short, structured, observed assessments of real clinical work. The main tools are the mini-CEX, CbD, DOPS, ACAT, OPCAT and MCR. Plan for an 18 to 24-month evidence-gathering window. Aim for breadth across your scope of practice, recency within 5 years, and a mix of assessors led by substantive Consultants. Map every WBA to a curriculum capability and a GMC domain. Reflect briefly on each.
What WBAs prove in a Portfolio Pathway application
A WBA is a short, observed snapshot of a real piece of clinical work, scored against a structured proforma, with immediate feedback. The Federation of the Royal Colleges of Physicians describes the suite of these tools, and the same family of instruments is used across the other Royal Colleges and Faculties with slightly different names.
For Portfolio Pathway applicants, the WBA does something Multi-Source Feedback cannot. MSF tells assessors how colleagues experience you. WBAs tell assessors what an experienced peer saw when they watched you do the work. That distinction matters. Royal College reviewers know how to read a well-completed mini-CEX. They know what a credible DOPS log looks like. They know that twelve well-spread CbDs across a year describe a working Consultant in a way that no reference letter does.
The GMC's own Specialty Specific Guidance, in almost every specialty, points applicants directly at the recognised WBA tools as the format they expect. The Specialty Specific Guidance for your specialty is the spine here. The recurring phrase is that evidence should be triangulated from multiple sources, of which WBAs are the central observed-practice strand.
Royal College assessment panels read curriculum vitae, structured reports and reflective writing every day. WBAs are the one evidence type that puts a senior peer in the room with you. A panel reading a clear, well-spread WBA log feels less like they are taking your word for something and more like they are watching the work happen.
The WBA toolbox: the six tools you will use most
Most Portfolio Pathway applicants will use some combination of six core WBA instruments. The exact names vary by Royal College, but the underlying tools are recognisable across specialties.
mini-Clinical Evaluation Exercise
A short, observed snapshot of a real patient encounter. History, examination, clinical reasoning, communication.
Case-based Discussion
A structured conversation about a written record you produced. Notes, an out-patient letter, a discharge summary. Focuses on clinical reasoning.
Direct Observation of Procedural Skills
An observed practical procedure scored against a structured checklist. Patient consent is required where a live patient is present.
Acute Care Assessment Tool
Looks at a block of acute work: a take, a ward round, a day on the wards. Decision making, time management, team working, handover.
Outpatient Care Assessment Tool
Used for a single clinic, face to face or virtual. Captures clinic-shaped Consultant work that ACAT and mini-CEX struggle to evidence.
Multiple Consultant Report
Structured feedback from Consultant supervisors on your clinical performance. Sits alongside MSF rather than replacing it.
There are other recognised tools you will see referenced. The Quality Improvement Project Assessment Tool, the Audit Assessment, the Teaching Observation and the Patient Survey are all part of the same Federation toolbox, and we cover those in their own articles. The six above are the workhorses for direct clinical observation.
WBAs vs MSF: they are different jobs
One of the most common framing mistakes in Portfolio Pathway applications is treating WBAs and Multi-Source Feedback as overlapping tools. They are not. They answer different questions, and a strong application uses both, not one in place of the other.
Did the work meet the standard?
- What did you do in this specific patient encounter or procedure
- How well did you reason, communicate, examine, intervene
- Are you operating at the supervision level expected of a UK Consultant
- Is there enough breadth and recency across your scope of practice
How do people experience you at work?
- Generic professional behaviour across the team
- Communication, reliability, leadership, teamwork
- Patterns visible to nursing, allied health and admin colleagues
- Signals about probity, insight and professionalism
A Portfolio Pathway application without WBAs has nothing direct to say about how you actually practise. A Portfolio Pathway application without Multi-Source Feedback has nothing to say about how colleagues experience you. Most applications use both, with the WBAs carrying the clinical weight and the MSF supporting the professional domains.
What is different for Portfolio Pathway applicants
The tools are the same, but the rules around them are not. UK trainees use WBAs against fixed Annual Review of Competency Progression decision aids that specify minimum numbers per year. Portfolio Pathway applicants are not on a training programme, so those minima do not formally apply.
What does apply, in every specialty, is the standard set out in the GMC Specialty Specific Guidance for that specialty. The phrase that recurs across SSG documents is that evidence must demonstrate the Capabilities in Practice and high-level learning outcomes of the curriculum to the standard of a day-one Consultant. The WBA log is the most direct way of demonstrating those capabilities in observed practice.
For trainees, the mini-CEX is trainee-led. They identify the assessor and the patient. For Portfolio Pathway applicants who are already practising at Consultant level, the same instrument works the same way, but the script is different. You are not asking a supervisor to assess your readiness to progress through training. You are asking a Consultant peer to formally record observed practice that is already happening at Consultant level.
Practically, this means three things differ. You set your own pace rather than working to ARCP minima. You are usually choosing your own assessors rather than being allocated them. And you are mapping each WBA against the GMC's high-level learning outcomes for your specialty, not against early-career milestones.
How many WBAs do you actually need?
There is no universal Portfolio Pathway number. The GMC SSG documents are clear that quality matters more than quantity, and that the total must demonstrate the full curriculum. Some structure helps, though, because submitting too few WBAs is one of the most common reasons applications come back for further evidence.
A pilot study published by Royal College of Physicians researchers in 2018, on the introduction of CbD and ACAT tools, found that for adequate statistical reliability you need approximately 12 CbDs, three ACATs and 16 raters for the patient survey. Those numbers refer to a 12-month assessment cycle for training.
For Portfolio Pathway applicants gathering evidence over an 18 to 24-month evidence window, a practical target looks like this. Some specialties will need more procedural work and fewer office-based assessments. The reverse is true elsewhere. Treat this as a starting point and adjust against your SSG.
10 to 15 mini-CEX assessments per year
Spread across the breadth of your clinical work. For a Respiratory Consultant that means ward, clinic, bronchoscopy list, MDT review, on-call. For an Anaesthetist that means a range of cases, complexity and theatre lists. Choose assessors who saw the case, not just the notes.
10 to 12 CbDs per year
The CbD is the single best tool for capturing higher-order Consultant reasoning. Use it for the difficult case, the unusual presentation, the borderline call. The conversation focuses on a written record you have produced, so the case notes or out-patient letter need to be available.
Three to six DOPS, more for procedural specialties
For Anaesthetics, Interventional Radiology, Gastroenterology endoscopy, Dermatology procedures, Cardiology procedures and similar, the number is much higher and the SSG numbers are explicit. For non-procedural medical specialties, smaller numbers are fine where your role is mostly cognitive.
Three to four ACATs per year if relevant
For specialties where you cover an acute take, run a busy ward day, or lead an unselected case mix, ACATs add a layer mini-CEX cannot. They capture the meta-skills of organising, prioritising, handover and team coordination. Less useful if your work is fully elective.
Three to four OPCATs per year for clinic-heavy specialties
For most physicianly specialties, clinic is core Consultant work, and OPCAT captures it. For Dermatology, Rheumatology, Endocrinology, Neurology and Diabetes the OPCAT will often outnumber the ACAT.
Multiple Consultant Reports across your team
The MCR is one form completed by one Consultant. If you work with eight Consultant colleagues, the strongest portfolios approach all of them over an evidence-gathering window. Each form gives the assessor a different view, and the spread of MCRs reads as a department-level endorsement.
The figures above are practical defaults built from RCP reliability research and from common assessor expectations across specialties. They are not GMC quotas. Your own SSG, your Royal College or Faculty guidance, and any indicative numbers within your specialty's curriculum are the binding documents. Where your specialty SSG gives a clearer figure, use that.
Mapping WBAs to GMC domains
The four GMC domains, set out in Good Medical Practice, are the framework against which assessors mentally cross-check every piece of evidence: Knowledge and skills, Safety and quality, Communication and partnership, Trust and professionalism. We cover the framework in detail in The four GMC domains.
WBAs do not cover the four domains equally. Knowing which tools say something about which domain saves you from leaving a domain thin.
Which tools speak to which GMC domain
| WBA tool | D1: Knowledge & skills | D2: Safety & quality | D3: Communication | D4: Trust & professionalism |
|---|---|---|---|---|
| mini-CEX | ||||
| CbD | ||||
| DOPS | ||||
| ACAT | ||||
| OPCAT | ||||
| MCR |
A filled dot means the tool gives strong direct evidence for that domain. A half-filled dot means it gives partial evidence. An outlined dot means the tool is not really the right instrument for that domain and you should look elsewhere. Patient feedback, audit, structured reports and reflective writing carry the load where the WBAs go thin.
The 12-month WBA plan
Most Portfolio Pathway applicants gather WBAs across 18 to 24 months. The 12-month plan below is the core year. Run it once for the densest evidence collection, then continue at a lighter pace until submission.
The rhythm matters. WBAs that bunch in the last three months before submission read as a panic spike. Assessors notice. WBAs that are evenly spread across a year or more read as the routine practice of a senior doctor, which is exactly the story you want to tell.
Choosing assessors well
The Federation's guidance is explicit. For mini-CEX, ACAT and CbD, the assessor must be a doctor with experience beyond core training level. For DOPS, the assessor needs expertise in the procedure, and that can include experienced nurses and allied health professionals where appropriate. Trainees should not assess each other outside of MSF, although MSF in particular allows wider input.
For Portfolio Pathway applicants, the practical hierarchy looks like this.
Who should sign off your WBAs
Ranked by panel weightThe strongest assessor profile. A panel reading WBAs signed by named substantive Consultants in your specialty is reading what they recognise as a peer assessment.
Acceptable in most specialties, especially when supported by Consultant MCRs alongside. Confirm with your Royal College where your specialty's guidance is explicit about Consultant-only sign-off.
Senior endoscopy nurses, advanced practitioners, sonographers and other allied professionals with expertise in the specific procedure. The Federation explicitly allows this for DOPS where appropriate.
Two further points are worth labouring. Avoid having one assessor sign too high a proportion of your WBAs, because that pattern reads as a single supportive colleague rather than a department-wide endorsement. And avoid assessors with whom you have a non-clinical conflict, such as a co-author on a major publication or a close family relationship.
Common WBA mistakes
Five patterns weaken WBA evidence packs more often than any others.
Volume without breadth. Forty mini-CEX from the same outpatient clinic does not demonstrate the curriculum. Ten WBAs across ward, clinic, on-call, procedural and MDT settings is stronger evidence.
Old WBAs treated as primary evidence. The 5-year recency rule applies. WBAs from before the recency window can show longitudinal practice, but the bulk must be recent.
WBAs with no link to the curriculum. Each assessment should be mapped to at least one Capability in Practice or curriculum learning outcome. Untagged WBAs make extra work for assessors and read as box-ticking.
One supportive Consultant signing everything. Spread the assessor base across at least four to six Consultants over an evidence-gathering window.
No reflection. Each WBA gains weight when followed by a short reflective note. Two or three sentences linking the assessment to a learning point, an action, or a follow-through.
Specialty system differences
The Federation toolkit described above is the model for the physicianly specialties. Other Royal Colleges and Faculties use the same underlying ideas but different names and systems. Knowing the local naming saves embarrassment when you ask a Consultant to do an "ACAT" in an anaesthetics theatre.
The Royal College of Anaesthetists 2021 curriculum uses the A-CEX in place of mini-CEX, with DOPS for procedures and the HALO (Holistic Assessment of Learning Outcomes) as the higher-level sign-off. All recorded on the Lifelong Learning Platform.
The Royal College of Radiologists uses RAD-CEX for case observation and reporting variants, OBS-CEX for observed practice and DOPS for procedures, all logged through the RCR ePortfolio. The reporting log carries weight alongside.
The Royal College of Pathologists uses the Evaluation of Clinical Events (ECE) tool for complex tasks like clinicopathological evaluation, MDT presentation and quality assurance, with MSF and audit. Recorded on the Learning Environment for Pathology Trainees (LEPT) system.
The Faculty of Intensive Care Medicine sits across the Federation and RCoA systems. ICM trainees use a blend of the physicianly toolkit plus DOPS for ICU procedures. Portfolio Pathway applicants in ICM should consult both sets of guidance.
If you are applying in a CCT specialty whose Royal College runs a different system, use the names your College uses, even when the underlying instrument is the same. Assessor familiarity with the local format helps. Where you have overseas WBAs from your training, attach them as supplementary evidence and follow up with UK-format WBAs to build the primary evidence on the same record.
Direct-from-overseas Portfolio Pathway applications are particularly challenging because overseas WBAs are usually weighed as supporting rather than primary evidence. The more realistic route is to take a UK post first (often at SAS, trust grade or Specialist Grade), then build a UK-format WBA log from inside the system. This is the route most successful applications take.
Download the 12-month WBA planner
A two-page A4 planner: the WBA-to-domain map, the quarterly plan, and a printable log to track WBAs across an evidence-gathering year. Free, no email required.
The WBA 12-month planner
Quarterly plan, GMC domain map, printable tracker log for mini-CEX, CbD, DOPS, ACAT, OPCAT and MCR.
Where this sits in the evidence cluster
WBAs are one of the four cornerstone evidence types in a Portfolio Pathway application. They sit alongside Multi-Source Feedback, audit and quality improvement, reflective practice writing, and the structured reports from referees. None of these stands alone. Read them as a set.
If you are a non-substantive Consultant or senior SAS doctor whose department does not have a clear WBA culture, that is not an automatic block on the Portfolio Pathway. It usually does mean you need to make the first move: identify Consultants who would assess, brief them on the WBA proforma, and run the first few yourself. If that pattern is not landing well after six months of trying, the friction itself can be a sign that the environment is not Portfolio-Pathway-supportive. That is a separate conversation worth having honestly.
Official sources used
| Publisher | Source |
|---|---|
| GMC | Specialty Specific Guidance for Portfolio pathway applications |
| GMC | Good medical practice 2024 |
| The Federation of the Royal Colleges of Physicians | Workplace-based assessments: tool definitions and assessor rules |
| The Federation of the Royal Colleges of Physicians | Who can act as a WBA assessor |
| The Federation of the Royal Colleges of Physicians | Portfolio pathway (formerly known as CESR) |
| RCP / NCBI | Assessing trainees in the workplace: pilot study on CbD, ACAT and patient survey reliability |
| RCoA | Information for Portfolio Pathway applicants |
| RCPath | Definitions of assessment tools (PDF) |
| RCPath | The Portfolio Pathway (formerly CESR) |
| RCPCH | Portfolio Pathway for SAS doctors |
| NHS Employers | SAS development guidance and Portfolio Pathway support |