Technical writing/Making a bad requirement good/YanaMartinExercise

System performance:
 * SP-010: The system must enable bulk printing of invoices for all customers at the beginning of the next month.
 * SP-020: The system shall contain a visible list of accounts.
 * SP-021: Each contract can have several personal accounts.
 * SP-022: One customer can have several contracts.
 * SP-030: The system must enable the authorized person to choose accounts for which the invoices will be printed.
 * SP-040: The system must enable the authorized person to enter date ranges for which the invoices will be printed.
 * SP-050: The system must automacically create a hot-bill and a regular bill when the customer closes the contract.
 * SP-051: The system must display and enable to print all hot-bills at the end of each month.
 * SP-052: The hot bill report must contain these pieces of information: 

System administration:
 * SA-010: Only authorized person can maintain the system.
 * SA-020: The authorized person must have his/her personal account.
 * SA-021: The personal account can be accessed through a nick/name and password.