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Types of SLA

Service Level Agreements (SLAs) are agreements between a service provider and a customer that define the expected level of service, typically measured against specific performance metrics. SLAs can vary depending on the scope, type of service, and relationship between the parties involved. Below are the main types of SLAs:


1. Customer-Based SLA

  • Definition: An agreement tailored to an individual customer or client.
  • Scope: Covers all services provided to a specific customer.
  • Example:
    • A telecommunications provider offering a specific SLA for internet speed and uptime to a corporate client.
    • A managed IT services company providing guaranteed response and resolution times for a single client.
  • Key Features: Customization for a specific client’s needs, often negotiated individually.

2. Service-Based SLA

  • Definition: A standardized agreement applicable to all customers using a specific service.
  • Scope: Covers a single service offered by the provider.
  • Example:
    • A cloud storage provider offering 99.9% uptime across all customers using its premium storage plan.
    • A software company offering updates and support within a defined time frame for all users of a product.
  • Key Features: Uniformity across users for a particular service.

3. Multi-Level SLA

  • Definition: A layered agreement structured to address different service levels or groups within the organization.
  • Types of Multi-Level SLAs:
    1. Corporate-Level SLA: General SLA applying to all users in an organization.
    2. Customer-Level SLA: Specifies unique needs for a specific customer group or department.
    3. Service-Level SLA: Focuses on a particular service or function.
  • Example:
    • An IT department setting SLAs at the corporate level for overall IT infrastructure, customer level for finance vs. HR teams, and service-specific SLAs for email services.
  • Key Features: Flexibility and granularity to address different organizational levels.

4. External SLA

  • Definition: Agreement between an external service provider and its customer.
  • Example:
    • An e-commerce platform contracting a cloud hosting provider with an SLA ensuring 99.99% uptime.
  • Key Features: Clearly outlines accountability and penalties for non-compliance.

5. Internal SLA

  • Definition: Agreement within an organization, typically between departments.
  • Example:
    • An internal IT team committing to a 30-minute response time to resolve technical issues for other departments.
  • Key Features: Focused on internal operational efficiency and accountability.

6. Outsourced SLA

  • Definition: Agreement between a company and an outsourced service provider.
  • Example:
    • A company outsourcing customer support with an SLA for resolution time and call handling metrics.
  • Key Features: Similar to external SLAs but specifically for outsourced services.

Each type of SLA is crafted based on the unique requirements of the service, customer, or organization, ensuring transparency, setting clear expectations, and establishing accountability.