Implement the following loan-approval scenario: a loan is approved if the borrower’s accumulated equity — measured across all of their known securities — exceeds their accumulated debt plus the requested loan amount.
Example: Peter requests a $50,000 loan with a 36-month term. His monthly income is $4,000 and his monthly debt is $2,500. His total equity is calculated as Monthly Income × 0.8 × Loan Term. Each security he holds contributes its own (equity − debt) to the overall evaluation of the loan.
The harder question the challenge poses: how should your solution handle new “but” events arriving after the fact — i.e., new information that should cause the decision to be re-evaluated? (The original write-up demonstrated one approach: a decision engine wired into a pub/sub message broker so re-evaluation happens automatically as new facts arrive.)
Send your solutions to DecisionManagementCommunity@gmail.com, or open a pull request to add yours here.