Can you explain what the term SLO means in service management and how it is used?

SLO (Service Level Objective) — a specific, measurable goal for service quality level that the service provider commits to maintain. Usually, SLO is expressed in availability percentage, response time, or other key metrics.

Example: An SLO for a website might be "99.9% uptime in a month." This means the allowable downtime should not exceed approximately 43 minutes per month.

SLO is used for:

• Defining expectations between the development team and users.
• Monitoring and assessing service quality.
• Forming an SLA (Service Level Agreement) — official agreements with clients.

Thus, SLO helps focus on key quality aspects and manage them systematically.