We're migrating the core deposit system, and the business wants all 300 fields on the old account maintenance screen copied over as-is. You pull the last 12 months of usage data and find that 120 fields are filled in less than 1% of the time. Would you just recommend cutting those 120? How do you confirm what's really needed?

存款核心系统要迁移，业务方说旧系统账户维护界面上的 300 个字段全部照搬。你拉了过去 12 个月的使用数据，发现有 120 个字段的填写率低于 1%。你会直接建议砍掉这 120 个吗？怎么确认真实需求？