# Products # Products The mortgage and real-estate functions: what each does, its operations, the canonical fields it reads and writes, and the vendors serving it. Eight categories, each answering one question about a loan. Verification asks whether what the borrower said is true. Assessment asks what the collateral is and what it is worth. Eligibility asks whether someone will buy the loan. Contract asks what the documents and the numbers are. Validation asks whether the artifacts produced are correct. Automation moves the loan without a person. Integration reaches the systems of record, and Adapters connects to the origination system itself. Seven products appear in two categories, because they genuinely answer two of those questions. The category is what distinguishes them. A product's contract never names the vendor behind it, so a vendor can be introduced, reordered or replaced without a caller changing anything. The vendors themselves are under Providers. Every product inherits the same endpoint surface: request and response schema, the vendor ordering, invocation history, the partner list and report templates. That surface is defined once, in Product, rather than re-implemented per vertical. - Appraisal - Approval - Asset - Boarding - Closing - Compliance - Credit - Document - Electronic - Employment - Fee - Fraud - Government - Identity - Income - Insurance - Lexicon - Listing - LOS - Notary - POS - Price - Property - Rating - Servicing - Signature - Tax - Title - Valuation