space

Extent delimitation

Record the things or surfaces that bound the area and the rule used wherever no physical boundary closes it.

1. Which surfaces or surrounding things delimit this empty area, and on which sides? boundary
2. Where the area opens into a larger expanse, what rule determines where this space ends? definition
3. Which limits were observed, and which were supplied by a person, plan, or other reference? provenance

Space individuation

Record the basis for treating this area as one space despite openings, partial dividers, or continuity with neighbouring emptiness.

1. What distinguishes this space from the empty area immediately beyond each open limit? boundary
2. Does a partial divider create separate spaces here, or only distinguish portions of one space? definition

Measured envelope

Record the footprint or spatial envelope, its reference frame, and the evidence supporting its measured limits.

1. Is this space being represented as an area on a specified surface or as an extent with height or depth? definition
2. What are its measured limits and extent in the chosen reference frame, including uncertainty? measurement

Fit and narrowing

Record where the space narrows and compare the proposed object's envelope with the available clearance in a specified configuration.

1. Where are the limiting widths, heights, or depths, and in which directions were they measured? measurement
2. Can the proposed object occupy the intended position and orientation with the required clearance margin? action

Relevant absence

Record what must be absent and the spatial scale at which that absence is assessed, without equating emptiness with vacuum.

1. Which occupants, objects, or substances would make this area nonempty for the stated assessment? definition
2. What minimum obstruction size or detection threshold applies to the claim that the area is clear? measurement

Clearance evidence

Record the observed free region, excluded obstructions, and portions whose vacancy has not been established.

1. Which portions are confirmed clear, obstructed, or unobserved under the stated emptiness criterion? boundary
2. What observation supports that assessment, when was it made, and which portions could it actually reveal? provenance

Opening configuration

Record each relevant connection, the neighbouring space it reaches, and its current clear dimensions.

1. Through which openings or open edges does this space connect to another identified space? boundary
2. What are the current clear dimensions and configuration of each connection? measurement

Continuous passage

Record whether a continuous sequence of positions and orientations permits entry, traversal, or exit.

1. Can the specified entity pass from the approach space through the opening to its intended position? action
2. Where along that movement does its swept envelope encounter insufficient clearance or an unmeasured section? measurement

Space change

Record observed or supported anticipated changes in the gap, including narrowing, closure, division, and merging.

1. Which bounding things or obstructions can move, and how does their movement change the clear region? boundary
2. For what interval is the current spatial assessment supported, and what evidence establishes that interval? provenance

Proposed use assessment

Compare the proposed use with available extent, passage, and duration, while linking any required permission, support, or environmental assessment to its responsible model.

1. Does the space remain sufficiently clear and reachable for the proposed use throughout its required duration? action
2. Which additional conditions, such as permission, supporting-surface capacity, or environmental suitability, must be checked in linked models before proceeding? action
3. If the use occupies or subdivides this area, which remaining empty portions need to be reassessed? boundary

Kinds and varieties

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these kinds and varieties hold for the sense of space this model covers, and on what evidence? provenance

Identifiers and schemes

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these identifiers and schemes hold for the sense of space this model covers, and on what evidence? provenance

Standards and regulation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these standards and regulation hold for the sense of space this model covers, and on what evidence? provenance

Real-world use

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these real-world use hold for the sense of space this model covers, and on what evidence? provenance

Typical measurements

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these typical measurements hold for the sense of space this model covers, and on what evidence? provenance

Failure modes and hazards

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these failure modes and hazards hold for the sense of space this model covers, and on what evidence? provenance

Regional variation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these regional variation hold for the sense of space this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of space this model covers, and on what evidence? provenance