The hidden skills inside a single job title are already written down

Raise the idea of assessing domestic work against a standard and the same objection arrives every time, from employers, from agencies, and from people who mean well. Every household is different. One family wants the cooking done a particular way, another cares only about the children, a third has a parent with a condition that reshapes the whole role. You cannot write a test for that.

It is a reasonable-sounding objection, and there is a serious academic version of it that I will take up properly in section six. But as an empirical claim about whether a standard can exist, it has been settled, and it was settled by a government rather than an argument.

In May 2022 the Technical Education and Skills Development Authority of the Philippines promulgated a Training Regulation for Domestic Work NC II, qualification code SOCDOW222.¹ It is a national qualification. It has units of competency, assessment methods and accredited assessment centres. Its direct predecessor, Household Services NC II, had been running since 2005 with 216 nominal training hours.²

So the question is not whether the occupation can be broken into assessable parts. It has been, twice, over two decades. The question is why that fact changes nothing for a worker arriving in Riyadh.

Here is what a decomposition of household work actually looks like when a national authority does it.

TESDA's qualification separates thirteen units into three groups. Four are core, specific to the occupation: cleaning living room, dining room, bedroom, bathroom and kitchen; washing and ironing clothes, linen and fabric; preparing hot and cold meals; and providing food and beverage service. Two are common, shared with related service occupations: maintaining an effective relationship with the client, and managing own performance. The remaining nine are basic, the transferable workplace competencies that run underneath almost any job.¹

Notice what that structure does. It separates what is specific to this occupation from what travels to the next one, which is precisely the information a worker needs in order to move and an employer needs in order to hire. The four core units are the thing being bought. The two common units are why a housekeeper can become a hospitality supervisor. The nine basic units are why she is employable at all.

None of that is visible in the words "domestic worker". All of it is visible in the qualification.

A unit of competency on its own is a heading. What makes it useful is the method by which someone establishes that a particular worker holds it, and TESDA specifies that too: demonstration with oral questioning, written examination, and portfolio, administered at accredited centres.¹

That list is more interesting than it looks, because the three methods buy different things and cost different amounts.

Demonstration is the work sample, and the selection literature is clear that work samples are among the strongest predictors available, at .33 on the most recent reanalysis of the field.³ It is also the most expensive method, because it needs a physical setting, a scored rubric and an assessor's time. Written examination is cheap and tests knowledge rather than performance. A portfolio is cheap and establishes history rather than capability.

Cross-reference this against the same occupation in the United States Department of Labor's database, which records twenty distinct task statements for maids and housekeeping cleaners and rates the occupation 76 out of 100 on Customer and Personal Service knowledge and 71 out of 100 on performing general physical activities.⁴ Some of those tasks are directly demonstrable in an hour. Some are only observable over weeks inside a household. The design question for anyone building assessment is not which units to include. It is which evidence type each unit can honestly carry.

The Philippines is not an outlier, which matters because a single national standard could be dismissed as idiosyncratic.

India's Domestic Workers Sector Skill Council publishes a qualification pack for Assistant Home Manager at NSQF Level 5, built from ten compulsory National Occupational Standards units including managing resources and finances, caregiving and related activities, and handling medical and non-medical emergencies.⁵ Indonesia gazetted a national competency standard for household personal services in 2015.⁶ And the ILO's regional office for Asia and the Pacific issued Regional Model Competency Standards for Domestic Work in December 2014, explicitly as a reference point for countries developing their own.⁷

Four independent attempts, converging. They differ in unit count and emphasis, as you would expect from different labour markets, and they agree on the essential point: this occupation has a describable content that can be assessed.

Ethiopia has been trying to join them. A draft regulation classifying domestic work into occupational categories for certification has been under discussion for close to a decade and had not been adopted as of mid-2026.⁸ The pattern there is worth noting: the difficulty is institutional, not conceptual.

Here is the part that turns this from an academic observation into a market failure with a name.

Saudi Arabia runs a Skill Verification Programme through the Ministry of Human Resources and Social Development with the Technical and Vocational Training Corporation. It targets more than 1,000 professions in 23 fields, concentrated on exactly the blue and grey collar trades where capability is otherwise unobservable, and passing it can condition a worker's visa.⁹

The country therefore accepts the entire premise. Capability should be tested before arrival rather than discovered afterwards. It has built the institution, the testing centres and the link to immigration.

Domestic work is not among the covered professions.

The bilateral instrument is no better. The 2013 Agreement on Domestic Worker Recruitment between Saudi Arabia and the Philippines requires, at Article 5(3), that workers be trained on housework in specialised institutes. It says nothing about recognising the qualification that such training produces.¹⁰ Training is mandated; the certificate that proves it travels nowhere.

So a Filipina worker can hold a national qualification decomposing her occupation into thirteen assessed units, arrive in Riyadh, and be hired on a job title and a number of years. The document exists. The testing infrastructure exists. The link between them does not.

Now the academic version of the objection from section one, which is considerably better than the casual one.

Research on care and domestic work has found that the occupation is characterised by implicit and tacit practices which are difficult to describe, and that workers themselves struggle to articulate what the skill set they develop actually comprises.¹¹ If the practitioners cannot name it, a unit of competency written by a committee is unlikely to capture it either. On this account a thirteen-unit standard does not decompose the job; it decomposes the visible, codifiable surface of the job and leaves the substance untouched.

I think that is largely right, and it constrains what a qualification can claim rather than whether one should exist.

Two things follow. The first is that a standard should be read as a floor rather than a portrait. Holding Domestic Work NC II establishes that someone can do four core things to an assessed level. It does not establish that she is good at the job, and any system presenting it as though it did is overclaiming. The second is that the tacit residue argues for more practical assessment rather than less, because demonstration under observation reaches further into tacit capability than any written test or self-description will.

There is a second limit, which is mine rather than the literature's. The study most directly supporting the tacit-knowledge objection examined elder homecare rather than general housekeeping, and the two are not the same occupation. I am extending its finding by analogy, and flagging that I am doing so.

If you accept that the standards exist, the allocation of effort in this field is wrong.

A great deal of energy goes into designing new competency frameworks for frontline occupations, usually by organisations that have not checked whether one already exists in the origin country. That work is largely redundant. Four instruments already cover domestic work across the main origin corridors, they converge on similar content, and the ILO has published a regional model precisely so that a fifth does not have to be invented.

What does not exist, anywhere I can find, is the layer that makes an origin-country qualification legible to a destination-country employer. That is a recognition problem: a mapping between standards, a way to check that a given certificate is real, and an employer-facing presentation that shows what the units actually mean. None of that requires anyone to agree on a new taxonomy. It requires someone to connect two working systems that currently ignore each other.

For Saudi employers and agencies there is a narrower and more immediate point. If a worker arrives holding Domestic Work NC II, that is more information than you currently use, and it costs nothing to ask for. You are not waiting on infrastructure. You are declining to read a document that already exists.

The hidden skills inside the job title are not hidden. They were written down in Manila in 2022, and nobody in the destination market is looking at the page.