Total Cost of Ownership
Lifetime cost including people, operations, upgrades and exit.
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This topic is part of the curriculum but has no questions, cards or glossary entries so far. The rest of Cost Architecture & FinOps may still cover what you are looking for.
Neighbouring topics
Cost & FinOps
General material on the economics of an architecture.
Cloud Pricing Models
On-demand, committed and spot, and the crossover arithmetic.
No content yetReserved & Committed Capacity
Committing the baseline, laddering terms, and expiry as a silent failure.
No content yetSpot & Interruptible Capacity
Deep discounts for work that can be interrupted and resumed.
No content yetUnit Economics
Cost per request, per tenant, per transaction — the actionable number.
No content yetCost per Request
Fully-loaded per-unit cost, including the lines usually left out.
No content yetStorage Costs
Tiering, lifecycle policies, retrieval charges and minimum durations.
No content yetNetwork & Egress Costs
Cross-zone and cross-region transfer that appears on no diagram.
Compute Optimisation
Instance families, utilisation, and architecture that wastes less.
No content yetRightsizing
Matching provisioned resources to observed demand rather than to a guess.
No content yetCost Allocation
Tagging enforced at provisioning, and apportioning shared costs.
No content yetShowback & Chargeback
Making teams see, or own, the cost of what they run.
No content yetArchitecture Cost Modelling
Pricing a design before building it, at expected and at ten times volume.
No content yetCost vs Reliability
Each nine costing an order of magnitude, and pricing the failure instead.
No content yetObservability Cost
Telemetry bills, cardinality control and retention tiering.
No content yetLicence & Vendor Costs
Per-core, per-seat and per-environment terms that shape designs.
No content yetFinOps Practice
Inform, optimise, operate — and cost as a design-review criterion.
No content yetWaste Elimination
Idle environments, orphaned volumes, forgotten instances, dead data.
No content yetCost Governance
Budgets, anomaly alerts, quotas and preventive policy.
No content yet