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insurance-policy-admin

insurance policy administration

Guidewire PolicyCenter, Duck Creek Policy, Sapiens

SystemTechniques · 14Primitives · 59 insurance-policy-admin Template enginescompilers · medium: Compile templates with loops, partials and auto-escaping into render functionsDurable workflow executiondistributed · medium: Ordinary code made crash-proof by logging every side-effect result and replaying the code from that log; activities run at least once, workflow logic must be deterministic.›Payment state machinefinance · medium: Persisted state machine for a payment lifecycle (authorize, capture, void, refund) that treats timeouts as unknown, retries with the same key and applies webhooks idempotently.›Generalized linear models (GLMs)machine-learning · medium: Linear model for counts, rates, positive amounts and proportions: a linear score pushed through a link, fitted by iteratively reweighted least squares.›Gradient-boosted decision trees (GB…machine-learning · medium: Add small regression trees one at a time, each fitted to the loss gradient; histogram splits over 256 bins make it the strongest tabular default.›Tamper-evident audit logsecurity · medium: An append-only log whose Merkle root, signed per batch, lets anyone verify an entry is present and history was never rewritten, with log-size proofs.›Bitemporal datastorage · medium: Valid time plus transaction time on every record for as-of queries, back-dating and correctionsHierarchical state machinesystems · low: Nest states so a substate inherits its parent's reactions and only overrides what differs, with ordered entry and exit actions along the path.›Double-entry ledgerfinance · low: Append-only journal of transactions whose postings sum to zero per currency; balances are derived, so money can only move, never appear or vanish.›Largest remainder roundingfinance · low: Splitting an amount into parts that sum exactly (largest remainder / Hamilton) for allocations, splits and prorationsMoney representationfinance · low: Store money as integer minor units with an explicit currency exponent, compute in wider integers, and round once with a named rounding mode.›Proration calculationfinance · low: Prorating charges and credits for mid-cycle plan changes by time usedRevenue recognition schedulesfinance · low: Deferred revenue schedules that recognize income over service periods (ASC 606 / IFRS 15)Entity attribute value schemastorage · low: Schema-flexible EAV / JSON entity storage with typed attribute catalogs and indexesOptimistic concurrency controlstorage · low: Run transactions without locks, record what they read, and validate at commit that nothing changed; fastest when conflicts are rare.›Calendar date arithmeticsystems · low: Civil dates, time zones (tzdb), DST gaps, month-end anchoring and duration mathName resolutioncompilers · low: Bind every use of a name to its declaration with a scope stack, handling shadowing, hoisting and closure capture in one AST walk.›Recursive-descent parsingcompilers · low: Hand-written top-down parser with one function per grammar rule; simple, fast, with full control over error messages and recovery.›Html sanitizationsecurity · low: Allowlist-based HTML sanitizing of untrusted markupRecord replaydistributed · low: Record every nondeterministic input (time, randomness, I/O, model and tool outputs, per-tick player input) and re-execute deterministically for debugging, replays and state rebuildEvent sourcingfinance · low: Persist state changes as an append-only stream of immutable events per entity; current state is a fold over them, guarded by expected-version appends.›Hierarchical timing wheelsystems · low: Timers bucketed by expiry into wheels of slots, coarser wheels for far deadlines: O(1) insert and cancel for millions of timeouts.›Idempotency keysfinance · low: Client-chosen unique key per logical operation, stored with a request fingerprint and the final response, so retries replay the first result instead of acting twice.›+ 7 more techniques+ 43 more primitives

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