Rules engine and AI

From raw punches
to payable hours.

The engine rebuilds the days, applies each employee’s statutory and agreement rules and feeds counters and payroll items in real time. AI spots errors before payroll, explains why and lets a human decide.

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Simulator

An afternoon shift ending late: nine hours counted.

An operator scheduled from 2 p.m. to 10:30 p.m. badges at 1:56, 6:00, 6:30 and 11:34 p.m. Change the times or pick an example: the day recalculates.

Planned shift
Badge events
Examples
Hours worked-
Normal hours-
Overtime-
Night hours (10 p.m. to 6 a.m.)-
Compensatory rest (1 h 30 per overtime hour)-
Earliest restart (11-hour rest)-

    Teaching simulation using a post’s default rules: early arrival not counted without a request, departure rounded down to the quarter hour, unpaid break. At a client, each rule is configurable (rounding, tolerances, breaks, collective agreement premiums).

    Rules engine

    A combination of rules, not development.

    Six steps per day

    1. Pairing: entries and exits linked, duplicates merged, reference day set (night shifts, midnight).
    2. Comparison with plan: schedule, theoretical hours, absences, public holidays.
    3. Qualification: normal work, overtime, night, Sunday, holiday, on-call, travel, training.
    4. Client rules: rounding, tolerances, breaks, caps, premiums.
    5. Legal checks: 10 h, 48 h, 11 h, 44 h, breaks, minors, reference period thresholds.
    6. Posting: counters, register and payroll items.

    Parameters

    FamilyExamples
    CalendarsLuxembourg and foreign holidays, closures, bridge days
    SchedulesTheoretical, core and flexible bands, cycles, POT
    Rounding and tolerancesMinute, quarter hour, neutral or in the employee’s favour
    BreaksAutomatic or clocked deduction, minimum, paid or not
    OvertimeDay, week, period thresholds; authorisation; time off or pay
    PremiumsSunday 70 %, holiday 100 %, night per agreement, combinations
    GroupsMinors, part time, executives, protected profiles
    Collective agreementsSector rules versioned with effective date

    Real-time counters

    CounterFed byUsed by
    Annual leaveAccrual, agreed leaveApproved requests
    Time off in lieu1 h 30 per approved overtime hourRest taken
    Flexitime balanceGap between actual and theoreticalCarry-overs, debits
    Time savings accountOvertime, balances, agreed leaveTime savings leave, payout on leaving
    Sunday and holiday compensationSunday or holiday work, holiday on a SundayRest taken
    Days outside LuxembourgPunches qualified by countryThreshold alerts
    Delegation hoursStatutory or agreed creditHours declared

    Simulation before activation: before a rule goes live (new agreement, new POT), the engine replays it on past months and quantifies the impact per employee.

    AI under human control

    AI decides nothing: it spots, explains and suggests.

    Replay a scenario
    AI suggests, a human decides, everything is loggedDaycalculated bythe engineAnomaly enginehosted in Europe or on site1. Rulescertainchecks2. Modelsunlikelygaps3. Local LLMexplains andsuggestsSuggestionexplained, citingthe rule involvedDecisionemployee, manageror HRDay approved and loggedaccepted, changed or refused:who, when, whyCounters and payrollpayroll items,register updatedOut of scope, by designno employee scoring · no emotion analysis · no automated decision · no training of third-party models

    The rule detects the certain, the model spots the unlikely, the LLM explains it plainly; the decision stays human and traced.
    Anomaly catalogue
    CategoryAnomalies detectedSuggested follow-up
    SequenceEntry without exit, exit without entry, double entry, duplicate within secondsMissing punch suggested, duplicate merged
    Consistency with planPunch on a leave, sick or holiday day; no punch on a workday; unplanned shiftAbsence or punch to confirm
    LegalOver 10 h or 48 h, insufficient 11 h or 44 h rest, missing break, minor at night, Sunday beyond the capManager alert, regularisation, compensation
    OvertimeHours without authorisation, authorisation exceeded or unusedRegularisation request
    TechnicalTerminal clock drift, silent terminal, burst of events, unknown badgeSupport ticket, resync
    PlacePunch outside the zone, unknown NFC tag, unqualified day outside LuxembourgPlace to confirm
    PayrollOutlier item before export, negative counter, unusual gap with last monthExport blocked until approval
    PreventionAt this pace, 48 h average or cross-border threshold exceeded within two weeksEarly alert

    The conversational assistant

    • “How much leave do I have left?”
    • “Why is Tuesday red?”
    • “Book time off on Friday afternoon.”

    Safeguards

    LuxApps Pointage

    Your time clocks, your rules, your payroll.

    Show us your hardware and your agreements: we show you the path to payroll, compliance included.

    Book a demo