- Will the SLA structure allow flexibility in the levels of service to be delivered for various customers?
- Will the SLA structure require much duplication of effort?
- Who will sign the SLAs?
Three types of SLAs structures that are discussed within ITIL® are service-based, customer-based and multi-level or hierarchical SLAs.
Figure 5.D – SLA structures
Many different factors will need to be considered when deciding which SLA structure is most appropriate for an organization to use.
Typical Multi-level SLA Structure components:
- 1. Corporate level: All generic issues are covered, which are the same for the entire organization.
Example: The Corporate Security Baseline, e.g. Passwords, ID cards etc.
- 2. Customer level: Those issues specific to a customer can be dealt with.
Example: Security requirements of one or more departments within the organization are higher e.g. the financial department needs higher security measures.
- 3. Service Level: All issues relevant to a specific service (in relation to customer) can be covered.
Example: The email services for a particular department needs encryption and secure backups.
Using a multi-level structure for a large organization reduces the duplication of effort while still providing customization for customers and services (by inheritance).
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You focus on defining the goals of your organization’s successful Service Level Management and let this toolkit guide you to the end result.
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