Glossary

Glossary

The codes that appear in file names, commit messages, the records and the maps, decoded in one place.

Work product prefixes

Each work product is named WP, a letter for its area, and a number, for example WP-C-04 is the safety function specification. The work product register lists every one with its clauses, gate and status.

Prefix	Area	Folder
WP-M	Management: strategy, plans, confirmation measures, regulatory strategy, impact analysis	01-management/
WP-C	Concept: machine limits, operating envelopes, risk assessment, safety functions and PLr, risk reduction, cybersecurity and ML concepts	02-concept/
WP-S	System: safety requirements, SRP/CS architecture, stopping and separation budget, I/O, cybersecurity architecture	03-system/
WP-H	Hardware: safety chain, electrical safety, failure analysis, PL calculation, component qualification, mechanical analysis	04-hardware/
WP-W	Software: the controller safety layer and the hardened host stack: requirements, architecture, verification, parameters, ML engineering	05-software/
WP-V	Validation: stopping and holding, collaborative operation, E-stop, fault injection, cybersecurity, test operations, field trials	06-validation/
WP-P	Supporting processes: configuration, change, problem resolution, documentation, review, tools, release, the process model	07-supporting/, process/
WP-A	Analyses: FMEA, FTA, CCF, STPA, independence of the chain	08-analyses/
WP-O	Operation: assembly, operation, information for use, field monitoring, incident response	09-production-operation/
WP-K	Safety case, technical documentation, cybersecurity case, assessments, release record, AI Act record	10-safety-case/
WP-T	Traceability data	trace/

Record identifiers

Code	Reads as	Where it lives
HZ-M, HZ-E, HZ-T, HZ-P, HZ-C, HZ-D and the rest	Hazard, by category (mechanical, electrical, thermal, collaborative contact, control and cyber, data), the identifiers of the concept-phase package kept	Risk assessment, WP-C-03
SF-	Safety function of the control system, with its required Performance Level PLr; SF-32 is the hardwired emergency stop	WP-C-04
DM-, IFU-	Design measure (inherently safe design or guarding) and information for use: the package's non-control "safety functions", reclassified; their SF numbers are reserved and never reused	WP-C-05, WP-O-03
SR-	Safety requirement of the SRP/CS	WP-S-02
HWSR-, SWSR-	Hardware and software safety requirement	WP-H-01, WP-W-02
CSR-, TS-	Cybersecurity requirement, threat scenario	WP-C-08, WP-C-07
AIR-, ML-	Requirement on a learned component; a learned component	WP-C-09
FI-, TC-	Functional insufficiency, triggering condition	WP-C-10
PAR-	Safety-related parameter: joint limits, torque and speed caps, watchdog timings	WP-W-09
AOU-	Assumption of use: what the analysis assumes about the operator, the supply, the build, the bench; AOU-01 to AOU-08 are the package's assumptions in order	Machine definition and safety case
OE-	Operating envelope: OE-1 supervised lab bench, OE-2 classroom, OE-3 industrial collaborative cell, OE-4 public demo	WP-C-02
M-	Operating mode: M-01 OFF, M-02 IDLE, M-03 TEACH, M-04 RUN, M-05 ESTOP	WP-C-01
CFG-	Configuration: CFG-001 the B601-DM v1.1 reference arm, CFG-002 the B601-RS variant, tracked and unverified	case/configurations/
BL-	Baseline: a named state of the record; BL-001 is the inherited state	case/baselines/
DF-	Defeater: known counter-evidence against a claim	Safety case, WP-K-01
GAP-	A finding of the baseline gap assessment; never reused	Gap assessment
OI-	Open item of a work product, due at a gate	The last section of every work product
IX-, FB-	Cross-domain interface, feedback route	Process model
GOV-, CON-, DES-, DEV-, INT-, REL-, OPS-	Activities of the process model, by phase	Process maps
CR-, FSA-, AUD-, CS-, ML-R, NB-	Confirmation reviews, functional safety assessments, audits, cybersecurity review and assessment, ML reviews, notified body	WP-M-06
DQ-	Decision question for the project lead	Decision register
T-, D-	Tailoring decision, strategic decision	WP-M-01 §5, §8
G0 to G6	Lifecycle gates	WP-M-00 §2
FM-, SYRS-, SRS-, HWRS-, TC-U/I/S-	Failure modes, requirements and test cases of the concept-phase package; cited as sources, not record identifiers	The reBot_DevArm_*.xlsx workbooks at the repository root

Machinery safety vocabulary

Term	Meaning
Performance Level (PL)	ISO 13849-1's measure of a safety function's ability to perform under foreseeable conditions, PL a (lowest) to PL e. The required PL, PLr, comes from the risk graph on the hazard; the achieved PL from the control system's category, MTTFD, DCavg and CCF.
Category	The designated architecture of a safety-related part: B, 1, 2, 3 or 4. Category 3 and 4 have two channels so that a single fault does not lose the function.
MTTFD, DCavg, CCF	Mean time to dangerous failure per channel; average diagnostic coverage; the common cause failure score. The three numbers the PL calculation needs, and the ones no actuator supplier has published.
SRP/CS	Safety-related part of a control system: everything from the button or the monitor through the logic to the contactor that implements a safety function.
Safety function	A function of the machine whose failure can immediately increase risk: emergency stop, safe stop on watchdog, joint torque and speed limiting, and so on.
Emergency stop, protective stop	A stop a person triggers (ISO 13850) versus a stop the control system triggers on a monitored condition: a lost heartbeat, a joint limit, a detected contact.
Stop category 0 / 1	EN 60204-1: immediate removal of power (0; the arm's joints coast and the gripper may release) or a controlled stop followed by removal of power (1).
Safety-rated monitored stop	The collaborative mode in which the arm is held stopped by a monitored function while a person is in reach; motion resumes only when the person has left.
Hand guiding	The collaborative mode in which an operator moves the arm by hand (the arm's TEACH mode) under an enabling device and a safely limited speed.
Speed and separation monitoring (SSM)	The collaborative mode in which the arm slows or stops as a person approaches, keeping the separation distance of ISO 13855.
Power and force limiting (PFL)	The collaborative mode in which contact is permitted because the force and pressure the arm can exert stay below the body-region thresholds of ISO/TS 15066 Annex A. Not claimed in the first safety case (DQ-005).
Separation distance, minimum gap	How far a person must be from the arm during motion (ISO 13855, ISO 13857) and how small a joint gap must be so a finger cannot be crushed in it (ISO 13854).
SELV	Safety extra-low voltage: the 24 V motor supply, isolated from mains by the supply, on which the shock argument rests.
Three-step method	ISO 12100's order of risk reduction: inherently safe design first, then safeguarding, then information for use.
Technical documentation	The file Regulation (EU) 2023/1230 Annex IV requires a manufacturer to hold; WP-K-02 indexes it.
Security level target (SL-T)	IEC 62443's target per foundational requirement, SL 1 to SL 4.
Doer, checker, checker of last resort	The host stack proposes; the controller safety layer checks; the hardwired chain acts regardless of software.
Reference arm	The B601-DM v1.1 on a fixtured bench: the configuration the claims apply to. See Reference arm.
Hold point	A condition no test proceeds past: WP-V-07 before any powered test with a person in reach, and WP-V-03 before anyone is in reach during motion.

Safety-case vocabulary

Term	Meaning
Claim	A statement the safety case argues is true.
Evidence item	A test result, analysis or review that supports a claim. Each carries a review state; it is accepted only after confirmation review.
Defeater	Known counter-evidence, or a reason the argument might not hold. Open defeaters are published, not hidden. GAP-01…GAP-36 are the first.
Confirmation review	An independent check that a work product does what its standard asks. Nothing leaves draft without a verification review; nothing is accepted without a confirmation measure.
Baseline	A frozen, named state of the whole record.
Independence I0 to I3	Who may review: the author, another person, someone outside the team, someone outside the organisation.