The topic is creating an Account Payable invoice less system that can be used by departments across the business. Need help creating use case analysis diagram and data flow diagram for my accounting information system class.

The Online Billing and Accounting software will be managed through a cloud client that allows enrolled customers to access their invoice and payment systems. Each customer will be required to verify their secure system via user ID and password. Each customer will have a client portal to access their information and quickly generate, modify, route and approve invoices through an integrated dashboard with their customized transactions available through a user-friendly navigation screen. Account set-up for end-users will keep records of the customer's financial records and all statements generated for each week, month, quarter and year. Accounts with detailed billing information related to the customer's billing cycles will be maintained in the system and can be programmed to autogenerate documents for recurring payment and pending invoices. Accountants can set reminders, notifications, comments and status for each unique entry. The Online Billing and Accounting software will be managed through a cloud client that allows enrolled customers to access their invoice and payment systems. Each customer will be required to verify their secure system via user ID and password. Each customer will have a client portal to access their information and quickly generate, modify, route and approve invoices through an integrated dashboard with their customized transactions available through a user-friendly navigation screen. Account set-up for end-users will keep records of the customer's financial records and all statements generated for each week, month, quarter and year. Accounts with detailed billing information related to the customer's billing cycles will be maintained in the system and can be programmed to autogenerate documents for recurring payment and pending invoices. Accountants can set reminders, notifications, comments and status for each unique entry