Average Revenue per User (ARPU)
METRIC
REVENUE OPERATIONS
ARPU divides period revenue by users or accounts and is used in SaaS, telecom and apps to track how pricing, upsell and customer mix change over time.
METRIC
CYBERSECURITY
Recovery Time Objective (RTO) and Recovery Point Objective (RPO)
Two continuity targets: RTO caps how long a system can stay down, and RPO caps how much recent data can be lost, measured in time.
BUSINESS RELEVANCE
These two numbers turn business impact into technical requirements and budget: a 15-minute RPO for an order system needs continuous replication, while a 24-hour RPO for an intranet allows nightly backups.
IMPLEMENTATION EXAMPLE
A business impact analysis sets the CRM at an RTO of 4 hours and an RPO of 1 hour. Backups run hourly, and a quarterly restore test that takes 3 hours 10 minutes and loses 40 minutes of data shows both targets are met.
LIMITATIONS
Targets set without restore testing are guesses, and backups that ransomware can reach may fail when needed. RTO is set per system, so shared dependencies such as identity or DNS can extend the real recovery time.
TECHNICAL EXPLANATION
NIST SP 800-34 defines RTO as the overall time a system's components can be in the recovery phase before negatively affecting the mission or business processes, and RPO as the point in time to which data must be recovered after an outage. Both come from a business impact analysis and the maximum tolerable downtime. They shape Incident Response plans and Service-Level Agreement (SLA) commitments, and set backup frequency, replication and failover choices.
Secondary Topics
Systems Architecture
Sources
NIST CSRC Glossary — Recovery Time Objective (RTO) — https://csrc.nist.gov/glossary/term/recovery_time_objective; NIST CSRC Glossary — Recovery Point Objective (RPO) — https://csrc.nist.gov/glossary/term/recovery_point_objective
Related terms
AI Adoption Rate
METRIC
INTELLIGENT AUTOMATION
The share of people with access to AI tools who use them systematically in real workflows, the main driver of how much value AI spend returns.
Return on Investment (ROI)
METRIC
REVENUE OPERATIONS
A fundamental profitability metric comparing the net gain derived from an investment against its total initial cost.
Click-Through Rate (CTR)
METRIC
PERFORMANCE ADVERTISING
The percentage of recorded impressions that result in user clicks, measuring ad relevance and creative effectiveness.
Conversion Rate (CVR)
METRIC
PERFORMANCE ADVERTISING
The percentage of total visitors or interactions that successfully complete a designated valuable marketing or transaction goal.