# Running the Platform Glossary

> 18 terms from the Insurance book's Running the Platform part, each defined in a line and linked to the chapter that explains it.

- **ACORD:** the insurance industry's standards body, publishing forms, the AL3 batch format, P&C and life XML message standards and newer API standards ([ACORD & Data Standards](https://www.syntaqx.com/books/insurance/acord-and-data-standards)).
- **AL3:** ACORD's batch format for carrier-to-agency policy, claim and commission data, under much of the agency download traffic ([ACORD & Data Standards](https://www.syntaqx.com/books/insurance/acord-and-data-standards#al3)).
- **Big bang conversion:** converting every in-force policy to a new system at one cutoff, midterm ([Replacing a Core System](https://www.syntaqx.com/books/insurance/replacing-a-core-system#conversion-strategies)).
- **Conversion transfer:** a pair of entries moving a policy's unearned premium from the old system's ledger to the new one at conversion, excluded from written premium, premium tax, statistics and commissions ([Replacing a Core System](https://www.syntaqx.com/books/insurance/replacing-a-core-system#migrating-in-force-policies)).
- **Core platform:** the system of record for an insurer's policies, billing and claims, bought from a vendor or built ([Core Platforms](https://www.syntaqx.com/books/insurance/core-platforms)).
- **Data call:** a regulator's request for data the routine reports don't contain, answered under the call's own definitions and deadline ([Regulatory & Statistical Reporting](https://www.syntaqx.com/books/insurance/regulatory-and-statistical-reporting#data-calls-and-the-mcas)).
- **Data collection agent:** a contractor designated by a state agency to receive reports on its behalf, such as Verisk for Texas workers' comp claims EDI ([ACORD & Data Standards](https://www.syntaqx.com/books/insurance/acord-and-data-standards#iaiabc-claims-edi)).
- **FROI and SROI:** the First and Subsequent Reports of Injury, the IAIABC EDI transactions workers' comp insurers send to states ([ACORD & Data Standards](https://www.syntaqx.com/books/insurance/acord-and-data-standards#iaiabc-claims-edi)).
- **Maintenance type code (MTC):** the code on an IAIABC EDI transaction naming the event it reports, such as 00 (original FROI) or IP (initial indemnity payment) ([ACORD & Data Standards](https://www.syntaqx.com/books/insurance/acord-and-data-standards#iaiabc-claims-edi)).
- **Parallel run:** operating both systems on the same work to compare results; in a policy conversion, the premium, bills, notices, claim postings and reports, before cutover ([Replacing a Core System](https://www.syntaqx.com/books/insurance/replacing-a-core-system#parallel-runs)).
- **Premium tax:** a state tax on insurance premiums written on risks in the state, computed from direct premium by state with deductions, credits and prepayments ([Regulatory & Statistical Reporting](https://www.syntaqx.com/books/insurance/regulatory-and-statistical-reporting#premium-tax)).
- **Renewal rollover:** converting each policy to a new system at its renewal, so the old system runs off over one term ([Replacing a Core System](https://www.syntaqx.com/books/insurance/replacing-a-core-system#conversion-strategies)).
- **Retaliatory tax:** a tax on a foreign insurer equal to the excess of what its home state would charge a company from this state over this state's own charges on the same premium ([Regulatory & Statistical Reporting](https://www.syntaqx.com/books/insurance/regulatory-and-statistical-reporting#premium-tax)).
- **Statistical agent:** an organization designated by states to receive insurers' statistical plan data, such as Verisk ISO or NISS ([Regulatory & Statistical Reporting](https://www.syntaqx.com/books/insurance/regulatory-and-statistical-reporting#statistical-plans-and-agents)).
- **Statistical plan:** the rules and codes under which an insurer reports premium and loss transactions to a statistical agent, by line, coverage, class and territory ([Regulatory & Statistical Reporting](https://www.syntaqx.com/books/insurance/regulatory-and-statistical-reporting#statistical-plans-and-agents)).
- **Subledger:** a ledger fed by one system (premium, receivables, commissions, taxes, losses, reinsurance) that rolls up to the general ledger and feeds the statutory statement ([Insurance System Architecture](https://www.syntaqx.com/books/insurance/insurance-system-architecture#the-insurance-ledger)).
- **System of record:** the one system whose copy of a record wins when systems disagree; during a conversion it differs policy by policy and claim by claim ([Core Platforms](https://www.syntaqx.com/books/insurance/core-platforms#how-to-build-it)).
- **TXLife:** ACORD's life, annuity and health XML message envelope, carrying requests with a TransRefGUID and TransType ([ACORD & Data Standards](https://www.syntaqx.com/books/insurance/acord-and-data-standards#acord-life-txlife)).

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