When performing a BIA, you are trying to assess and align the affected IT systems, applications, and resources to their required recovery time objectives (RTOs). The prioritization of the identified mission-critical business functions will define what IT systems, applications, and resources are impacted. The RTO will drive what kind of business continuity and recovery steps are needed to maintain IT operations within the specified time frames.
Performa BIA assessment and fill in the following chart:

Business Function
Business Impact
Recovery Time Objective
IT Systems/Apps Infrastructure
Internal and external voice communications with
customers in real-time
Level 3
Less than 24 hours
Systems/App Domain
Internal and external e-mail communications with
customers via store and forward messaging
Level 1
Less than 5 hours
Systems/App Domain
DNS – for internal and
external IP communications
Level 2
Less than 24 hours
LAN-to-WAN
LAN
Internet connectivity for email
and store and forward
customer service
Level 2
Less than 24 hours
Systems/APP Domain

Business Function Or Process
Business Impact Factor
Recovery Time Objective
IT Systems/Apps Infrastructure Impacts
Self-service website for
customer access to
information and personal
account information
Level 2
Less than 24 hours
Remote access domain
e-Commerce site for online
customer purchases or
scheduling 24x7x365
Level 2
Less than 24 ours
Systems/App domain
Payroll and human
resources for employees
Level 1
Less than 24 hours
LAN domain
Real-time customer service
via website, e-mail, or
telephone requires CRM
Level 2
Less than 24 hours
LAN domain
Network management and
technical support
Level 3
1-2 days
LAN Domain
Marketing and events
Level 4
2-4 days
Systems/App domain
Sales orders or customer/
student registration
Level 1
Less than 24 hours
Systems/App domain
Remote branch office sales
order entry to headquarters
Level 1
Less than 24 hours
Remote access domain
Voice and e-mail
communications to remote
branches
Level 2
Less than 24 hours
WAN
Accounting and finance
support: Accts payable,
Accts receivable, etc.
Level 2
Less than 24
Systems/app domain