The guideline matrix and rate sheet, one policy in one run
When the guideline matrix and rate sheet disagree, a vendor keys in every change. Decisimo lets your team author both as one policy and run them together.
The rate sheet as a decision table the lender edits
The par rate is a decision table matching qualifying score and loan to value bands. A scorecard adds rate points for the policy's adjustments, and a custom function applies the floor. Every rate and band in these screenshots is illustrative. When no cell prices an application, the table writes no price and the decision refers it to a person.
The score the policy prices on
The policy uses the middle of three scores when three bureaus return scores, the lower of two when two do, the returned score when one does, or a declared no-score path when none does. Each path is a formula built in an editor. The identities were proved against fixtures before the formulas were built. A missing score follows its policy path and is never quietly priced.
A closed-end second as the same three artifacts
A fork on lien position sends an application down the first-lien or second-lien pricing path. The second-lien grid uses combined loan to value, and shared debt to income includes the first-lien payment. Testing proved that no second-lien cell prices below a first-lien cell at the same score and exposure. The lender builds this path with a decision table, scorecard and functions, as with the first lien.
Exceptions become decisions a person can work
Eligibility uses knock-outs for exposure, late payments, seasoning, reserves, score and points and fees. The debt to income exception checks compensating factors for score, exposure, reserves and purpose. The underwriting decision table returns approve, refer or decline with a plain-language reason, and a referral becomes a case a person can work with the same rules available inside it. See case work.
What US mortgage regulation asks lenders to evidence
For adverse action under the Equal Credit Opportunity Act and Regulation B, the lender gives specific reasons or notice of the right to obtain them; the decision row records raw material for that statement. Regulation Z requires an ability to repay determination, and the run records the income, payment and other inputs considered. The run also computes points and fees against the loan amount for the lender's high-cost loan test.
Questions we get asked
Does Decisimo decide a mortgage straight through?
Eligibility and pricing run from the lender's policy. Documents, the appraisal and verification remain work for a person, so a mortgage does not run straight through end to end. See consumer lending.
How does a rate sheet change go live?
A save creates a revision. You can compare revisions or releases, then deploy a release to an endpoint; if that endpoint carries an approval sequence, it deploys once signed.
What happens when no priced cell covers an application?
The decision table writes no price. The application is referred to a person rather than receiving the nearest rate.
Can it price a second lien or a product with no vendor template?
Yes. A lender can build a closed-end second with its own decision table, scorecard and functions, then price it from the same decision flow.
Is the decline reason an adverse action notice?
No. The decision row records a plain-language reason as raw material. Under Regulation B and the Equal Credit Opportunity Act, the lender gives the required statement of specific reasons or notice of the right to obtain one.
Put underwriting and pricing in one run
Start with the guideline matrix and rate sheet you already use, then build the policy that answers both in one decision flow.