Make sure the logical technology architecture includes:
Vendor-independent descriptions (functions and features) and graphical representations of hardware and software components in the new systems infrastructure
Information about expected network loads at normal and peak processing periods
Information about any upgrades necessary to the existing network infrastructure, including information on specific carrier types
Information on all connected nodes (workstations, database servers, gateways, and so on), including:
Projected quantities
Role in the new IT architecture (client, service provider and so on)
Platform characteristics for protocol handling, storage capacities, performance, fault tolerance and security
Information on and graphical representation of the geographical location of the system’s infrastructure components
An approach for how the availability requirements will be met in terms of hardware/software capabilities, such as fault tolerance and hot standbys, and so on.