Top-Level Design Documentation

Clearly show the major components and the services provided by the system in the top-level design. Here are the top-level design documentation tasks you must perform:

• Describe the major components and their relationships.

• Describe the user interfaces and interfaces to other computer systems, factories, stakeholders, and so forth.

• Describe the business process flows through the system.

• Determine the dependencies on external systems.

• Develop a disaster recovery plan.

• Identify the required “soft” infrastructure services—synchronized time Network Time Protocol (NTP), network management (Simple Network Management Protocol (SNMP)), systems management (Solaris web-based enterprise management (WBEM)), backup, restore, archive, directory, and so forth.

• Identify the required “hard” infrastructure services—venue, physical access, and so forth.