Where would you start working on the task of revamping the loan issuance / revolving credit line?

To start working on the task of reworking the loan issuance or revolving credit line, it is important to:

1. Gather requirements and understand the current system — study business processes, issuance rules, constraints, and goals of the rework.
2. Conduct stakeholder analysis — understand the expectations of clients, employees, and regulators.
3. Identify key metrics and issues of the current implementation — for example, application processing speed, risk level, user convenience.
4. Develop a conceptual model of the new system — describe main components, interactions, and scenarios.
5. Align requirements and priorities with the business — to ensure the solution meets business objectives.

This approach will allow a structured approach to the task, minimize risks, and create an effective solution.