NWSS-M002 — Service point lifecycle and reach
Provisional. Usable pending approval; a project-proposed concept only by the project that proposed it.
- Code: NWSS-M002
- Version: NWSS-2026-11-09
- Approval status: Provisional
Derivation of each service point’s occupancy, stage and eligibility from its dated enumeration, occupancy, enrolment, container deployment and service exit records, and the counts and rates over them: service points by occupancy and by stage, acts recorded, enrolment coverage of occupied service points, and the service exit rate. Applies to every registered service point of a project.
underlying principles and assumptions
The service point is the unit of service, identified by IRI and never by its label (ADR-0002). Stage, occupancy in force and eligibility are derived from dated acts at the time of reading and never captured (ADR-0005). Only a signed enrolment enrols. A service exit ends the enrolment it names; an exit recorded in error is withdrawn and the enrolment counts again; service after a valid exit restarts only with a new signed enrolment (ADR-0006). Acts count in the period of their own date, so later acts never rewrite earlier periods. Where projects differ, the rule names a project parameter (ADR-0010).
methods and procedures
Enumerate each service point once, recording its type, an occupancy observation and, where people live there, a household and person count. At enrolment, record the contact outcome, the respondent’s eligibility, the participant in a service point relationship and the decision, keeping the signed agreement in the evidence store. At deployment, record each container placed with its tag and the deployment kind. Record any service exit against the enrolment it ends, and any later occupancy or household count observed on other visits. Assign each service point to a zone, and each zone to a service round in the project’s records. Derive and count as the rules state.
data requirements and inputs
Service point enumeration records with service point type, occupancy observation and household count observation; enrolment records with enrolment decision, participant, respondent eligibility and contact outcome; container deployment records with deployed containers, deployment kind and tag assignments; service exit records naming the enrolment ended; withdrawals and restatements of any of these; occupancy and household count observations on later visits; zone assignments and the zones each service round serves. From the project design: the eligibility criteria, the deployment success criterion and the service period.
calculation and transformation rules
For a service point x at time t, counting only records dated at or before t: (1) Occupancy in force = the value of the latest dated occupancy observation of x, except that a signed enrolment followed by a later successful container deployment, both dated after that observation, is evidence of occupancy, and x is then occupied; with no observation, unknown. (2) Let e be the latest signed enrolment of x. A service exit is valid unless withdrawn. Stage: exited if a valid exit dated after e, or ending e, exists and no signed enrolment is dated after that exit (when an exit and an enrolment share an instant, the exit governs); else equipped if a deployment meeting the project parameter deployment success criterion is dated after e; else enrolled if e exists; else enumerated. (3) x is eligible at t when it meets the project parameter eligibility criteria, whose default the project design may replace: stage equipped, occupancy in force neither vacant nor unknown (occupied or non-residential; a service point of type communal point is exempt from this criterion), and in a zone that a service round serves. (4) Registered service points by occupancy = count of x by occupancy in force at the end of the reporting period. (5) Service points by stage = count of x by stage at the end of the period; the eligible count alongside. (6) Service point acts recorded = count of enumeration records, signed enrolment records, deployment records meeting the success criterion (by deployment kind) and valid service exit records dated in the period. (7) Enrolment coverage = 100 × (occupied x with stage enrolled or equipped) / (occupied x), at the end of the period; alongside: occupied x not enrolled, enrolled x not equipped, and x of unknown occupancy. (8) Service exit rate = 100 × (valid exits dated in the period) / (x with a signed enrolment in force at the start of the period); alongside: the exits, and the x that restarted with a new signed enrolment after an exit in the period.
outputs and units of measure
Registered service points by occupancy (count, NUM); service point acts recorded (count, NUM) by act kind and deployment kind; service points by stage (count, NUM) with eligible service points alongside; occupied service points enrolled (PERCENT) with the enrolment gap, deployment backlog and unknown-occupancy count alongside; service exit rate (PERCENT) with exits and restarts alongside; each by service point type, service area and zone. Stage, occupancy in force and eligibility per service point and date feed NWSS-M003.
validation and verification approach
Validation: a reviewer with Knowledge and Skills Reputation in community engagement and consent checks that the project design states its eligibility criteria and deployment success criterion and that enrolment captures consent from an eligible respondent. Verification: a reviewer in household waste service operations, who neither enrolled nor equipped the sampled service points, samples service points by stage and checks each stage against its dated records and their evidence (signed agreement by content address, geotagged deployment photograph, tag assignment), and that every exit counted is unwithdrawn and names the enrolment it ends.
limitations and applicability boundaries
Occupancy is observed rarely and can be stale; the enrolment-and-deployment rule corrects it only in one direction. Coverage depends on enumeration being complete: an unregistered service point is in no denominator. Household counts are as observed and refreshed only on visits that count again. Stage says nothing about whether service was delivered, which NWSS-M003 measures.
rationale
The dashboard behind this methodology rewrote history when a stage changed, divided shares by every registered service point including vacant ones, and applied form-version and project-specific exceptions to occupancy and placement success. Stating the derivation once over dated acts, with the differing criteria as project parameters, gives stage and coverage that any period can be recomputed for and any project can apply.
Indicators it serves
Activity types
- Container deployment
- Participant enrolment
- Service exit
- Service point enumeration
Knowledge domains a reviewer needs
- Community engagement and consent
- Data and evidence quality
- Household waste service operations
Variables
| Variable | Role | Unit | Description |
|---|---|---|---|
| Eligible | DerivedOutput | UNITLESS | True when the service point meets the eligibility criteria parameter at a date; never captured. |
| Occupancy in force | DerivedOutput | UNITLESS | The latest dated occupancy observation’s value, except that a signed enrolment followed by a later successful deployment, both dated after that observation, is evidence of occupancy (occupied); unknown with no observation. |
| Occupied service points enrolled | DerivedOutput | PERCENT | 100 x occupied points enrolled or equipped / occupied points, at the end of the period. |
| Registered service points by occupancy | DerivedOutput | NUM | Count of service points by occupancy in force at the end of the period. |
| Service exit rate | DerivedOutput | PERCENT | 100 x valid exits dated in the period / points with a signed enrolment in force at its start. |
| Service point acts recorded | DerivedOutput | NUM | Count of enumeration, signed enrolment, successful deployment and valid exit records dated in the period, by kind. |
| Service point stage | DerivedOutput | UNITLESS | Exited, equipped, enrolled or enumerated, derived from dated acts by the NWSS-M002 ladder; never captured. |
| Service points by stage | DerivedOutput | NUM | Count of service points by stage at the end of the period; eligible count alongside. |
| Contact outcome | MeasuredInput | UNITLESS | What happened when the observer sought a respondent. |
| Deployed container | MeasuredInput | UNITLESS | A container a deployment placed at the service point. |
| Deployment kind | MeasuredInput | UNITLESS | First deployment or redeployment. |
| Enrolment decision | MeasuredInput | UNITLESS | The participant’s decision; only signed enrols. |
| Enrolment ended | MeasuredInput | UNITLESS | The signed enrolment a service exit ends. |
| Household count (H) | MeasuredInput | NUM | Households at a service point as observed; the latest valid count is in force. |
| Observed at (t) | MeasuredInput | UNITLESS | The instant the observation or record was made; its local date in the project’s time zone is the record’s date. |
| Occupancy observed | MeasuredInput | UNITLESS | Occupied, vacant, non-residential or unknown, as observed. |
| Person count | MeasuredInput | NUM | People in the households at a service point as observed. |
| Respondent eligibility | MeasuredInput | UNITLESS | Whether the respondent may consent for the service point. |
| Restated record | MeasuredInput | UNITLESS | The earlier record a record replaces; of a record and its restatements only the latest counts (ADR-0006). |
| Service point (x) | MeasuredInput | UNITLESS | The service point a record or observation is about. |
| Service point type | MeasuredInput | UNITLESS | The kind of place a service point is. |
| Service zone | MeasuredInput | UNITLESS | The zone a service point is assigned to. |
| Withdrawn record | MeasuredInput | UNITLESS | The record a withdrawal declares never happened; a withdrawn record never counts (ADR-0006). |
| Zone served by a round | MeasuredInput | UNITLESS | A zone a service round serves; a service point in such a zone may be eligible. |