Information Security Handbook

Documenting interface requirements

Describe the various interfaces utilized by the information system to perform its information processing, including:

• Interface overview:
  • Describe the interface functionality
  • Define key hardware and software components related to the interface
• Functional description:
  • Describe the operations performed by the interface
  • Describe how the end users interact with the interface
  • Describe the events that trigger the movement of information through the interface
• Data transfer:
  • Describe how data is moved along the component systems of the interface
  • Describe how connectivity among the systems will be implemented
  • Describe the type of packaging or messaging of data that will be used to transfer data
• Transactions ...