Claude Skills by ashfordeOU

Use when verify that all frames, coordinate systems, and transformation data in exchanged engineering products comply with the ECSS-E-ST-10C §5.3.2 standard notation: confirm each frame identifier is an uppercase alphanumeric label, confirm each rotation matrix is orthogonal with determinant +1, confirm each quaternion carries unit norm, confirm each Euler-angle representation declares an explicit 3-digit axis-sequence code with no two adjacent axes identical, confirm every annotated vector c...

Use when define the parameterisation of a coordinate system per ECSS-E-ST-10-09C §5.4.7: categorize the geometry as Cartesian, spherical, or cylindrical; confirm the origin and orientation convention are documented; verify Cartesian axes form a right-hand triad; and check that spherical or cylindrical coordinate parameters fall within their valid ranges. Trigger: ecss, e-st-10-system-scope, coordinate-systems, parameterisation, spherical-coordinates, cylindrical-coordinates, cartesian-coordin...

Use when define a planetary body-fixed coordinate frame per ECSS-E-ST-10-09C §5.4.6: retrieve WGCCRE rotation-model coefficients for the target body, compute the right ascension and declination of the North Pole in ICRF from the polynomial evaluated at the given epoch, determine the prime-meridian angle W, validate that pole angles fall within physical bounds, derive the pole unit vector in ICRF Cartesian form, and verify the prime-meridian wraps to [0°, 360°). Apply to any Solar System body ...

Use when verify responsibility assignments for each coordinate system definition and transformation entry in a Coordinate System Document, ensuring every entry carries exactly one identified owner before the document is baselined. The procedure checks no CSD entry is unassigned (orphaned) and no entry carries ambiguous dual ownership, producing a compliant responsibility matrix per ECSS-E-ST-10C §5.2.1. Trigger: ecss, e-st-10-system-scope, coordinate-system, transformation, responsibility, ow...

Use when define the time scale and epoch for each spacecraft reference frame under ECSS E-ST-10C §5.4.4: select from TAI, UTC, UT1, TT, TDB, TCB, TCG, or GPS for inertial (ECI, GCRS), Earth-rotating (ECEF, ITRS), or barycentric (BCRS, HCI) frames; identify the standard epoch (J2000.0, J1950.0, B1950.0, or MJD) used as the time origin; verify each frame–time-scale pairing is consistent with its motion description; and convert between time scales using the TAI–TT constant offset or a supplied l...

Use when decompose a spacecraft coordinate transformation chain per ECSS-E-ST-10-09C §5.4.8: validate each rotation matrix for orthogonality and proper orientation (determinant +1), determine the ordering of translation and rotation primitives in the chain, resolve a composed rotation into its Euler angle sequence, compose a series of elementary transforms into a single homogeneous matrix, and verify roundtrip consistency. Apply at any stage of mission reference frame analysis where transform...

"Use when define each coordinate transformation in a spacecraft or system

Use when map product-tree frame relationships and derive transformation chains per ECSS-E-ST-10C Annex B: register each assembly element as a body-frame node in a directed tree, verify the tree has a single root and no cycles, find the transformation chain between any two frames through the lowest common ancestor, compose the chain of 4x4 homogeneous matrices into one frame-to-frame transform, and export the Franck diagram edge list showing every parent-to-child frame link. Trigger: ecss, e-s...

Use when verify that every coordinate and derived quantity in a space-system interface document or software parameter list states its unit as the SI standard or an explicitly listed stated exception, per ECSS-E-ST-10-09C §5.4.3. For each parameter: determine the quantity type (distance, angle, time, angular rate, velocity, mass, force, pressure, temperature, frequency, acceleration), identify the prescribed SI unit, check whether the actual stated unit is SI or appears on the stated-exception...

Use when generate or validate an HFE analysis and simulation report per ECSS-E-ST-10-11C Annex B DRD: verify the document covers all required sections (task analysis, human performance requirements, workload assessment, error analysis, simulation activities, and verification evidence); check each task-analysis entry for mission phase, crew allocation, and time budget; confirm every simulation activity records its objective, participant count, scenario, and findings; assess workload distributi...

Use when apply anthropometric and biomechanical reference data to spacecraft or habitat design under ECSS-E-ST-10-11C §4.5.1: determine the percentile range the design must accommodate (typically 5th–95th), interpolate body dimensions at the required percentile, check that every clearance and reach envelope covers the full target population, verify that required operator forces stay within the 5th-percentile strength limit, and apply microgravity spinal-unloading corrections to stature and se...

Use when verify that an internal spacecraft zone provides adequate architecture complements under ECSS-E-ST-10-11C §4.7.4: check that every crew-access path has handrails spaced within the allowable gap limit, every defined workstation carries at least one foot or body restraint, all mobility-aid elements form a continuous path with no uncovered gap exceeding the threshold, and all stowage items fall within the anthropometric reach envelope. Collect findings per zone and determine overall com...

Use when generate or validate the HFE continuous assessment process report per ECSS-E-ST-10-11C Annex C (normative DRD): confirm the report identifies assessment scope (system under review, mission phase, review gate or milestone), the assessment method applied (inspection, walkthrough, simulation, or user trial), a finding register where each entry carries an HFE criterion label, a severity level (critical, major, minor, or observation), and a recommendation, and a corrective-action register...

"Use when execute usability reviews, project design reviews, and crew

Use when run the continuous assessment process for a space system project under ECSS-E-ST-10 clause 4.10.1: categorize each finding by type (observation, action item, non-conformance), evaluate technical performance measures against their thresholds to derive a nominal/marginal/exceeded status, determine closure validity for each finding, compute the overall compliance status across all open findings and measure outcomes, and generate the structured Annex C assessment-report fields. The proce...

Use when validate human factors engineering assessment tool selection and coverage under ECSS-E-ST-10-11C §4.10.3: categorize each candidate tool into one of the four recognized families (simulation, development test, space analogue via neutral buoyancy facility or partial-gravity parabolic flight, or consensus report), confirm every identified HFE concern area is addressed by at least one tool, and verify that EVA-related concern areas are backed by a space analogue test rather than ground s...

"Use when assess cognitive ergonomics for a human-operated space system

"Use when apply cognitive performance and fatigue reference data under

Use when define the context-of-use description for a product or system as the foundational human-centred design (HCD) input under ECSS-E-ST-10-11C §4.2.2: identify the intended user population, the tasks they must perform, the physical and organisational environment, any relevant constraints, and the mission phases in which users interact with the system, then structure these elements into a reviewable context-of-use record that feeds subsequent HCD planning and human factors evaluation. Trig...

"Use when specifying crew station provisions under ECSS-E-ST-10C §4.7.5:

"Use when develop cue cards for spacecraft emergency and contingency

Use when design displays for a crewed spacecraft interface under ECSS-E-ST-10-11C §4.9.4: verify each display's format properties (layout type, font size, contrast ratio) against HFE minimum thresholds, check the information-density budget (parameter count and visible alarm count per display) against project limits, and assess each alarm entry for valid priority, consistent state, visual and auditory distinctiveness for high-priority active alarms, and correct suppression-indicator visibility...

Use when assess environmental ergonomics for a crewed space habitat or EVA station under ECSS-E-ST-10-11 §4.6.5: evaluate noise sound-pressure levels against habitable-area and sleep-quarter limits, verify whole-body vibration doses against daily exposure thresholds, confirm illuminance levels suit each operational area type, check atmospheric pressure, oxygen and carbon-dioxide partial pressures, and humidity against habitable limits, verify operative temperature and radiant-asymmetry bounda...

Use when design EVA and planetary surface activity requirements for a space system under ECSS-E-ST-10-11C §4.7.10: verify suit interface compatibility (operating pressure, thermal envelope, life support endurance), assess tool design parameters (operator force limits, reach envelope, glove compatibility), evaluate crew mobility timelines and terrain trafficability, and compute consumable margins with required reserves for O2, power, and thermal control. Verify abort scenario timelines confirm...

Use when evaluate crew habitable environments under ECSS-E-ST-10-11C §4.7.1–4.7.2: verify net habitable volume per crew member against the minimum per-person threshold, assess atmospheric parameters (oxygen partial pressure, carbon dioxide partial pressure, total cabin pressure, temperature, relative humidity) against allowable bands, check layout provisions for emergency egress paths and workstation accessibility, and confirm hygiene-system allocations are on record for each compartment. The...

"Use when run HCD activities for a crewed or human-tended space

Use when validate the Human-Centred Design (HCD) process plan against the ECSS-E-ST-10-11C Annex A Document Requirements Definition (DRD): confirm every mandatory section is present (scope, context-of-use description, stakeholder inventory, HCD activity schedule, evaluation plan, HFE staffing, and requirements traceability), verify each HCD activity is linked to a project milestone and a responsible practitioner, confirm evaluation events are categorized as formative or summative with success...

Use when plan the human-centred design (HCD) process for a space system or product under ECSS-E-ST-10-11C §4.4.1–4.4.2: identify every HCD activity required by Annex A (context-of-use analysis, user requirements specification, design solution, evaluation, implementation verification), assign each activity to an ECSS project phase (0 through F), allocate at minimum one HF specialist as the responsible party per activity, and confirm the resulting HCD plan covers all mandatory activities with n...

Use when manage the HFE requirements process for a space system under ECSS-E-ST-10-11C §4.6.1–4.6.2: capture each human factors engineering requirement with a non-empty source identifier, categorize it by type (functional, performance, environmental, safety, anthropometric), allocate it to one or more system elements (hardware, software, procedure, training), and verify bidirectional traceability from source to requirement and from requirement to implementing element. Flag any requirement mis...

Use when define the Human Factors Engineering (HFE) role in a space-systems project under ECSS-E-ST-10-11C §4.3.1–4.3.2: identify required HFE task categories (requirements definition, task analysis, design support, human-machine interface definition, verification and validation, design-review participation), assign each task to a lifecycle phase, and verify that formal interfaces are established with Systems Engineering, Safety, Operations, Training, and Software Engineering. Flag any task c...

Use when you apply hardware ergonomics requirements to space system hardware items under ECSS-E-ST-10-11C §4.6.4: categorize each item as a control, display, handle, or maintenance access point; check controls against operating-force and torque limits with inadvertent-activation safeguards in mind; verify displays satisfy minimum and maximum character visual angle and minimum contrast ratio thresholds; confirm handles provide adequate grip clearance and stay within one-hand or two-hand payloa...

Use when evaluate on-board informatics support for a crewed space system under ECSS-E-ST-10-11C §4.8: categorize each display element as numerical, graphical, status_text, alert, or control; determine alert urgency level from hazard severity and time criticality; check display format compliance against minimum contrast ratio and character height thresholds; and assess automation authority to confirm crew override is available for supervisory and autonomous operating modes. Flag every display ...

Use when identify the applicable ISO and European standards that support an ECSS-E-ST-10-11C human factors engineering (HFE) requirement: map each HFE topic area to the relevant indexed standards (ISO 9241 series, ISO 10075, ISO 11064, ISO 14738, EN 614, EN 894), confirm every topic area in the HFE design plan has at least one indexed standard on record, and flag any topic area with no indexed standard so the coverage gap can be resolved before the HFE plan is accepted. Trigger: ecss, e-st-10...

Use when verify labels, colour codings, and warning cues for a crewed spacecraft interface under ECSS-E-ST-10-11C §4.7.3: categorize each marking as a label (text identifying a control, display, or panel) or a cue (colour-coded indicator or alert signal), confirm every label is non-empty and within the character-length limit, check each colour-coded indicator against the HFE colour-status convention (red for danger, amber for caution, green for nominal, white or grey for information), and con...

"Use when design physical maintenance stations for a crewed spacecraft

Use when verify fit, reach, and visibility of crewed spacecraft workstations and habitable volumes using electronic mannequins and digital human models, per ECSS-E-ST-10-11C §4.5.2. Select the bounding anthropometric population percentiles (5th-female for minimum reach, 95th-male for maximum envelope), position the mannequin at each defined workstation, evaluate clearance against the required fit margin, check whether each control target lies within the functional reach envelope, and confirm ...

Use when assess medical facilities and provisions for a crewed spacecraft against ECSS-E-ST-10-11C §4.7.9 HFE requirements: categorize each provision item as emergency, diagnostic, routine, or preventive; determine the minimum required provision set for the mission duration category (short ≤30 days, medium 31–180 days, long >180 days); verify the on-board inventory covers every required item; compute consumable quantities against crew size and mission duration with a 10 percent margin; and fl...

Use when map mission phases and identify human-in-the-loop activities for HFE requirements capture under ECSS-E-ST-10-11C §4.3.6: inventory each canonical phase (ground operations, launch, ascent, deployment, on-orbit checkout, nominal operations, contingency, disposal), categorize every operator or crew activity within each phase, flag phases with no human-in-the-loop coverage, flag critical activities lacking human oversight in safety-critical phases, and derive one HFE requirement per huma...

"Use when design off-duty stations — sleep quarters, personal hygiene

Use when assess spacecraft operations design ergonomics under ECSS-E-ST-10C §4.6.7: evaluate each operational procedure for step-count limits, decision-branch density, and time-critical verification coverage; determine the automation level for each function given its response-time requirement and consequence severity; and verify that safety-critical commands carry sufficient independent inhibit actions. Each function is categorized into manual, supervised, or automated allocation and each fin...

Use when validate operations nomenclature consistency across a mission operations document or interface control document per ECSS-E-ST-10-11C §4.3.3: confirm each crew role label belongs to the canonical set (Commander, Pilot, Mission Specialist, Payload Specialist, Flight Engineer, Ground Controller, Flight Director), confirm each mission phase term matches the standard vocabulary (launch, ascent, orbit insertion, on-orbit operations, rendezvous, docking, de-orbit, reentry, landing, recovery...

Use when you document the organisational environment for a human spaceflight or ground-intensive mission under ECSS-E-ST-10-11C §4.2.1.5: identify crew roles and their authority levels, map ground support units and interface types, record procedure types with designated approval authorities, and verify that mandatory functions — flight control, systems monitoring, crew support — are covered by at least one ground unit. Flag gaps: missing commander role, uncovered mandatory ground function, or...

Use when identify and map the interrelated HFE parameters that characterise a human-machine system under ECSS-E-ST-10-11C §4.2.1.1–4.2.1.2: categorize each parameter into the standard parameter set (performance, workload, situation awareness, human error, training, environment, interface, communication), trace interrelationships among parameter categories, assess completeness of the parameter set against required categories, and verify that every defined system phase carries at least one para...

Use when assess the physical and psycho-physiological environments relevant to human performance under ECSS-E-ST-10-11C §4.2.1.6: categorize each environment parameter as physical (thermal, acoustic, vibration, lighting, or atmospheric composition) or psycho-physiological (workload, stress, sleep adequacy), verify that all required parameters have been assessed for the applicable mission phase, check each measured or predicted value against its human-performance acceptability bound, flag any ...

Use when evaluate crew physical performance and fatigue limits under ECSS-E-ST-10-11C §4.5.3: categorize each crew task by metabolic rate band (rest, light, moderate, heavy, or very heavy), check the continuous-work duration against the per-category allowable limit, compute the minimum required recovery period, flag any work bout that exceeds the sustained-performance threshold, and validate a full work-rest schedule against the daily workload accumulation limit for each category. Applicable ...

Use when develop, validate, or review operational procedures for a space system under ECSS-E-ST-10-11C §4.9.1: structure each procedure with mandatory fields (procedure_id, title, purpose, procedure_type, preconditions, numbered steps, expected_outcome), verify the procedure_type is one of the accepted operational categories (nominal, contingency, maintenance, test, launch_countdown, on_orbit), confirm every step begins with an imperative verb and does not exceed the cognitive-load word limit...

Use when identify HFE requirements from mission-phase and operator-role analysis and capture them into the Technical Specification (TS) under ECSS-E-ST-10-11C §4.3.7: enumerate every applicable mission phase, assign the operator roles active in each phase, map each phase-role pair to the relevant HFE driver categories (workload, habitability, anthropometry, visibility, reachability, cognitive, communication, safety), generate a structured requirement ID for each identified driver, verify that...

"Use when assess HFE safety requirements for a spacecraft operations

Use when define task characteristics to feed human-centred design (HCD) analysis per ECSS-E-ST-10-11C §4.2.1.4: identify each operator task by name and mission phase, assign a frequency category (rare, occasional, routine), determine the criticality level (safety-critical, mission-critical, non-critical), score four workload dimensions (physical demand, cognitive demand, time pressure, consequence of error) on a three-point scale, and flag high-risk pairings where elevated criticality coincid...

Use when generate and validate the Human Factors Engineering (HFE) test report against the ECSS-E-ST-10-11C Annex D Document Requirements Definition (DRD): confirm all mandatory sections are present and complete, verify participant counts meet the minimum for the test type (formative or summative), check that every finding is assigned a severity category (critical, major, or minor), confirm each finding has at least one linked recommendation, and verify that all planned test scenarios are rep...