Domain modules
Systems and Shared Infrastructure
The pump that fills the cistern draws power from the same line as the mill, and on the hottest afternoon of the year both draw at once. Capacity and load ask whether the line holds; function and state ask whether either machine works. The wisdom of the whole arrangement remains a different question.
Like every module, the specialized words are optional and use ordinary Phi grammar. A speaker who has not learned them can always ask for a core paraphrase. Learning them makes no one an engineer and grants no authority over the systems they describe.
The chapter table below introduces 33 module roots. Shared classifications bring the optional learning list to 50 words; base phelure store is taught alongside it. The complete machine-generated list is available under Systems and Shared Infrastructure in the module lexicon. The JSON entries in vocabulary/content/ remain authoritative for each word's form and full definition.
Core vocabulary used by the module
The module does not replace what Phi already says about devices, movement, and repair. It adds narrower technical relations around these familiar resources.
| Area | Core Phi resources |
|---|---|
| Things and processes | keli device, tenoa tool, teru process, norae method, norelu form, ruka complex, whoa whole |
| Boundaries and relations | norui boundary, shuna edge, pharune include, lorea connect, phaliso network, ruela path, shoeka route |
| Movement and recurrence | selu flow, roke move, kolua carry, sepho send, nuri cycle, turema return |
| Upkeep and renewal | thiranu maintain, shiroka repair, talome restore, thenoki sustain, sunoe regenerate, shorupo protect |
| Limits and evidence | phelona require, henoi enough, sharoi exceed, thenoi fall short, masue measure, siru marker, kirema criterion, hi direct evidence, ke inference |
| Shared life | sila community, phowe share, panoru support, thonai responsible |
| Storage | phelure store |
Other roots in this learning path
Several words reach Systems from another learning path or from older base-vocabulary classification. Their meaning does not change at the module boundary.
| Phi | Working sense | Why it belongs here |
|---|---|---|
mothami | baseline; selected reference condition | Systems compare later states and observations with a stated reference. |
loshenu | clearance; free room for a passage or operation | Interfaces, routes, and moving parts need room in the direction that matters. |
noporu | design; work out intended form, relation, or function | Technical systems are designed, revised, made, and tested through distinct acts. |
phelotu | format; chosen form for presenting content | Signals and records must reach people through usable sensory or technical forms. |
reteru | model; purpose-bounded representation of a system | A model selects a boundary, variables, assumptions, and omissions for a question. |
somethi | monitor; observe and record repeatedly | System change becomes visible through a stated series rather than one fortunate reading. |
pushali | overload; exceed present capacity with input or demand | The same relation can affect a cable, a signalling system, or a person receiving too much at once. |
nurako | railway; an iron route made for wheeled transport | A railway is infrastructure in its own right. A speaker who has not learned the noun can still describe its metal, path, wheels, and carrying. |
somaki | test; carry out a defined procedure and record the result | Testing gathers bounded evidence under conditions; assessment and approval come afterwards. |
herani | trend; pattern across ordered observations | A trend describes the selected record without supplying a cause or future promise. |
thosami | compatible; able to work together for a purpose | Fit at one interface does not guarantee compatible electrical or informational requirements. |
samethu | equivalent; matching by a selected meaning, function, or effect | Different components or formats may match for one purpose and differ for another. |
sanowu | predictable; reasonably anticipated from prior information | Predictability helps preparation without becoming certainty or reliability. |
hoshemi | hypothesis; proposed explanation or relation under examination | Systems inquiry needs an account that can be tested without being mistaken for a finding. |
sumeri | temperature; neutral thermal condition | A controller or record can identify temperature before judging it hot or cold; exact readings stay with their source. |
wimura | humidity; water vapour in air | Environmental systems can follow atmospheric moisture without turning a damp feeling into a technical value. |
keruma | illumination; light received at a place or surface | Received light can be compared with a requirement while source brightness and exact readings keep their own roles. |
Storage belongs to base vocabulary
phelure has no modules field. A jar stores food and a cistern stores water before either becomes a system under analysis. The Systems chapter keeps the verb close because capacity and retrieval conditions often make storage technical, but the act itself is ordinary.
Module roots introduced in this chapter
| Phi | Part of speech | Working sense | Essential contrast |
|---|---|---|---|
terura | noun | system; bounded whole of interacting components | A system is a whole selected for analysis; drawing its boundary is the first act, not an afterthought. |
monaki | noun | component; functionally identified part | Its role in the system makes it a component; proximity does not. |
nowiso | noun | interface; defined means or place of interaction | An interface is the specific point of interaction, sharper than a boundary and wider than a screen. |
kelitho | verb | function; perform a system role or operation | Functioning is the act itself; whether it serves the purpose well is a separate question. |
mirela | noun | state; selected system conditions at a time | A state is a chosen snapshot of conditions, not the whole truth of a thing. |
pherami | verb | depend; require another element for function or state | Dependency names a real requirement, weaker than cause and never a claim about worth. |
koewi | noun | input; matter, energy, information, or influence entering a system | An input is defined by the boundary it crosses, and the same thing can be one system's output and another's input. |
thirulo | noun | output; matter, energy, information, or effect leaving a system | An output leaves the boundary; nothing about leaving makes it useful or intended. |
sekaru | verb | transfer; move something from a source to a recipient | Transfer names the movement; whether the full amount arrived is a separate fact. |
kirowi | noun | signal; detectable variation carrying information | A signal carries information; whether that information is read correctly is a further step. |
ketora | verb | control; adjust a technical process toward a selected state | Control here stays technical, a process adjusted toward a state, never a person commanded. |
turelo | noun | feedback; returned effect that alters an ongoing process | Feedback is a returned effect that actually changes something; a loop drawn on paper is not yet feedback. |
henora | noun | capacity; conditioned limit of holding, processing, or delivery | Capacity is the limit under stated conditions, not the same as what a system currently holds. |
takori | noun | load; technical demand placed on a system | Load is a technical demand on a system, distinct from a burden placed on a person's shoulders. |
poruli | adjective | efficient; high useful output relative to selected input | Efficiency always compares a chosen output to a chosen input, and fairness never enters the ratio. |
masuro | verb | calibrate; relate an instrument to a stated reference | Calibrating relates a device to a reference; nilaki (inspect) is the wider examination beside it. |
kiphira | noun | fault; abnormal technical condition | A fault is an abnormal condition, not yet a claim of blame or even of failure. |
thonuki | verb | fail; not perform a stated required function | Failure names the missed function; its cause and its responsible party are further questions. |
seluwhe | noun | outage; bounded period of unavailable infrastructure service | An outage is the service's unavailable stretch, which can happen with or without any single part failing. |
wepanu | adjective | redundant; having independent alternative means for a function | Redundancy is independent backup for a function, and a shared cause can still take every path down at once. |
nilaki | verb | inspect; systematically examine condition against criteria | Inspection examines condition against criteria; it repairs nothing and certifies nothing by itself. |
koluri | adjective | reliable; consistently performing a required function under conditions | Reliability is scoped to a function and its stated conditions, not a blanket guarantee. |
pemaru | noun | hazard; potential source or condition of harm | A hazard is a potential source of harm, distinct from present danger or an actual injury already done. |
kisholu | noun | specification; explicit set of technical requirements | A specification states requirements; meeting them is not proof the requirements were wise. |
Electrical and analytical roots
| Phi | Part of speech | Working sense | Essential contrast |
|---|---|---|---|
thewaki | noun | electricity; physical phenomena associated with electric charge | Electricity is broader than current and distinct from energy or an available supply. |
rishonu | noun | electric charge; property involved in electrical interaction | Charge may be present when no current continues to flow. |
sephaki | noun | electric current; charge in motion | Current is not the electrical energy it may transfer. |
poweshi | noun | voltage; potential difference between two points | Voltage names the parameter; its exact reading and any claim about system performance require further evidence. |
phoselu | noun | technical power; rate of energy transfer or conversion | Power is not energy and has no political or interpersonal sense. |
wuneri | noun | variable; named feature or quantity that may take different values | The variable is the selected feature. Its value and method stay in the record; cause remains a separate claim. |
harusi | noun | emergence; whole-level pattern arising through component interaction | Emergence requires a pattern at the level of the whole; novelty or surprise alone falls short. |
hosari | noun | correlation; variables differing together across observations | Correlation reports an observed relation without supplying a cause. |
naropu | noun | feedforward; control acting from an input before output returns | Feedforward differs from feedback and from prediction without control action. |
The verbs used in this chapter receive their event or result nouns through Phi's ordinary event-noun rule: kelitho can name a function, pherami a dependency, sekaru a transfer, ketora control, phelure storage, masuro calibration, thonuki failure, and nilaki inspection. The adjectives poruli, wepanu, and koluri likewise name efficiency, redundancy, and reliability through the quality-noun rule; their entries remain adjective-only as required by the lexicon schema. All nine electrical and analytical roots are nouns, so the module gains no special derivation or technical grammar.
Systems, components, functions, and states
terura names a whole selected for analysis, and its norui boundary decides which monaki components count as inside it. A different question can draw a different boundary, or treat one component as a system in its own right. Calling something a system opens an explanation; it does not close one.
ha terura lo monaki lorea.
PROX system PL component connect.
ha monaki mua ha terura nai.
PROX component LOC PROX system be.
kelitho says a component performs its characteristic operation; mirela gathers the chosen conditions describing it at one moment. The function, the timing, and the evidence behind the claim are each worth keeping separate.
ha monaki kelitho.
PROX component function.
ha terura mirela mureo nai.
PROX system state stable be.
pherami states a real requirement between elements, without turning that requirement into a cause, an entailment, or an authority.
ha terura ra monaki pherami.
PROX system DIST component depend.
Variables, patterns, and explanations
A wuneri is the feature allowed to vary in a model, test, record, or control process. The name of the variable belongs in Phi; its exact symbol, value, and unit remain in the source record. A mirela state may gather several variables at one time, while a herani trend follows observations in an order.
ha wuneri to helui.
PROX variable PST change.
hosari says that two variables differ together across the stated observations. It makes no causal claim. harusi asks a different question: whether a pattern at the level of the whole arises through component interactions even though no component alone has it.
ha wuneri nela ra wuneri hosari phelu.
PROX variable COORD DIST variable correlation hold.
ha harusi lo monaki lorea pherami.
PROX emergence PL component connect depend.
A hoshemi hypothesis can propose a cause for a correlation or an account of emergence. Evidence and testing then decide how well the proposal fares. The vocabulary gives the inquiry more shelves; it does not fill them by itself.
Inputs, outputs, and transfers
koewi and thirulo are always relative to whichever boundary is in question, so the same water, energy, or signal can be one system's output and the next system's input in the very same sentence. Their unlike forms help keep that direction audible.
ha phialu ha terura koewi nai.
PROX water PROX system input be.
ha kenua ha terura thirulo nai.
PROX energy PROX system output be.
sekaru is movement from a source toward a recipient. Flowing, carrying, sending, and transferring can all describe pieces of the same event, but none of them alone proves the whole amount arrived unchanged.
ha monaki wea ra monaki phialu sekaru.
PROX component TOWARD DIST component water transfer.
Electricity, voltage, and power
thewaki names electricity broadly. rishonu is electric charge, and sephaki is charge in motion. The distinction matters whenever a component holds separated charge while no current continues to flow, or a current transfers energy without being that energy.
ha monaki rishonu phelu.
PROX component charge hold.
ha sephaki selu.
PROX current flow.
poweshi identifies voltage, the electrical potential difference between two stated points. phoselu is technical power, the rate at which energy is transferred or converted. A battery may hold much kenua energy and still deliver little phoselu; a voltage reading may be present while the device does no useful work.
Source record outside Phi: 48 V
ha poweshi to helui.
PROX voltage PST change.
ha terura phoselu sekaru.
PROX system power transfer.
thewaki kenua means electrical energy, and thewaki sekaru phaliso describes an electricity-transfer network. Exact readings and ratings remain in their source record, together with the circuit, provider, and equipment identities. Political authority and interpersonal influence use their own vocabulary, so technical phoselu need not carry either English sense of "power."
Signals, control, feedback, and feedforward
A kirowi is a detectable variation read as information, and its source, medium, and meaning are each worth naming, since a signal can point at a mirela state without commanding anything or guaranteeing that the reading is correct.
ha kirowi ha terura mirela shelo.
PROX signal PROX system state signify.
ketora stays inside the technical fence: adjusting a process or a variable, never a person. turelo needs a real return: something about a later output or state has to reach back and change what came before it. A circular diagram is not yet feedback until something actually loops back and shifts course.
ha monaki phialu selu ketora.
PROX component water flow control.
ha turelo ha ketora helui.
PROX feedback PROX control change.
naropu feedforward changes control from an observed or expected input before the resulting output returns. A cistern controller may reduce incoming flow after an upstream rain report instead of waiting for the water level itself to rise. Prediction supplies an expectation; feedforward begins when that expectation changes the control.
ha naropu ha ketora helui.
PROX feedforward PROX control change.
Capacity, load, storage, and efficiency
henora is how much a system can hold, process, or deliver under stated conditions; takori is the demand actually placed on it. The exact units belong in the record whenever they change what the claim means.
Source record outside Phi: 20 kWh
ha sirami ha terura henora thelima.
PROX record PROX system capacity describe.
ha takori nela ha henora sharoi.
PROX load COORD PROX capacity exceed.
phelure retains something for later retrieval, and the verb alone leaves open whether the store has room, keeps its contents safe, or belongs to anyone in particular.
ha terura kenua phelure.
PROX system energy store.
poruli compares a chosen useful output against a chosen input, so every efficiency claim carries a boundary and a value choice inside it. A process can be efficient and still be harmful, unjust, or unable to reach the people who need it.
ha terura poruli nai.
PROX system efficient be.
Faults, failures, and outages
A kiphira is an abnormal condition that may or may not go on to cause trouble. thonuki says a required function simply did not happen. The fault, the failure, its cause, and the person responsible for the fix are four different claims.
ha monaki kiphira phelu.
PROX component fault hold.
ha monaki to thonuki.
PROX component PST fail.
A seluwhe is the stretch of unavailable service a user actually experiences. A single component can fail with no outage following, and an outage can happen with no component failing at all: planned work, a missing input, or an outside interruption can each take a service down on their own.
ha seluwhe mosha teku nai.
PROX outage period short be.
Calibration, inspection, and specifications
masuro relates a device to a stated reference and may adjust that relation. nilaki examines a condition against criteria more broadly. A person can calibrate a device without inspecting the whole system, or inspect without calibrating anything at all.
mia ha keli masuro.
1SG PROX device calibrate.
mia ha terura nilaki.
1SG PROX system inspect.
kisholu names a set of technical requirements; the exact values, wording, and version stay in the source record, since precision there is usually the whole point. Meeting a specification says nothing yet about whether its requirements were wise or current.
ha kisholu ha henora thelima.
PROX specification PROX capacity describe.
Hazards, redundancy, and reliability
pemaru names a potential source of harm, apart from how likely it is or who it might affect. wepanu says independent backups exist for a function, though a shared cause can still take every path down together. koluri reports steady performance, but only for the function, the conditions, and the duration actually stated.
ha phialu selu pemaru nai.
PROX water flow hazard be.
ha terura wepanu nai.
PROX system redundant be.
ha terura koluri nai.
PROX system reliable be.
The three answer different questions, and a system can pass one while failing another: redundant and still unreliable, reliable and still carrying a hazard, one hazard reduced while the system as a whole stays no safer.
Useful transparent compositions
Some systems expressions remain clearer as combinations because their parts expose the intended analysis.
| Phi expression | Practical meaning | Why it remains compositional |
|---|---|---|
terura norui | system boundary | Keeps the chosen system and its analytical limit visible together. |
monaki terura | subsystem; component system | Shows the change of scale directly, one word riding inside the other. |
sila panoru terura | shared infrastructure; community-support system | Names who is supported while leaving room for the system to fail, exclude, or lack real governance. |
panoru kelitho | infrastructure service; support function | Identifies the function provided without assuming ownership or fair access to it. |
selu shoeka | flow pathway | Keeps the pathway tied to actual motion along an explicit route. |
masue maewo | measurement threshold | Reuses the existing transition point while requiring the quantity and consequence to be stated. |
kisholu norui | specification tolerance or permitted boundary | Keeps the allowed range tied to the specification that set it. |
thiranu mosha | maintenance interval | Names the upkeep and its period together. |
kelitho mirela | service or function state | Leaves availability, degradation, and approval as distinct states. |
somela monaki | sensor; observation component | States the component's role while leaving its variable, signal, interface, and exact device identity separate. |
ketora monaki | actuator; control component | Says that the component changes a process without hiding the affected process or control relation. |
kanu mirela | selected state or setpoint | Keeps the selected condition audible instead of presenting it as a natural destination. |
lerua koewi | outside disturbance input | Identifies an input from beyond the selected boundary without claiming its cause or effect in advance. |
mothami nela mirela phirae | technical error; difference from reference | States which observed state differs from which reference rather than borrowing the language of personal mistakes. |
thirulo mosha | throughput; output across a period | Keeps output and period available for separate evidence and exact source values. |
nuri mosha | frequency; cycles across a period | Keeps the recurring event visible and leaves exact rates in their source notation. |
thewaki sekaru phaliso | electrical grid; electricity-transfer network | Names what the network transfers without assuming ownership, access, authority, or obligation. |
thonuki norelu | failure mode | Names the shape a failure took without claiming its cause. |
kisholu heno | satisfy a specification | States that requirements are met without implying certification or safety. |
Source technical information
Measurements, units, formulas, identifiers, standards, protocols, and versioned technical wording stay outside the Phi passage. The module supplies the relations around such material; it does not translate the artifact itself. poweshi identifies voltage and phoselu identifies technical power, while a record such as 48 V or an equipment rating remains exact.
When technical meaning outgrows the module, a transparent expression, a word shared from another path, or a new root admitted through the word-creation protocol can take it further. Foreign-name pronunciation aids help conversation but carry none of the word's technical definition.
Phi carries the analysis around the record. It identifies the system and boundary, follows what enters and leaves, and states the condition actually observed; it can also show which components depend on each other. Exact preservation keeps the record precise. Interpretation and safety require their own evidence.