Total Cost of Ownership: The Theory
Do you know the real cost of your features?
We usually focus on initial development costs and, at best, future maintenance costs. But the reality is much more complex.
Total Cost of Ownership (TCO) model was created to address this complexity.
TCO is the overall cost of a product or service throughout its entire life cycle:
- Direct costs: easily measurable and directly tied to software development, deployment, and maintenance.
- Indirect costs: harder to quantify, but they significantly impact business operations and profitability over time.
Direct costs:
๐ธ Initial Development: costs of planning, designing, coding, testing, and deploying the software.
๐ธ Infrastructure & Hardware: the prices of on-premise or public cloud infrastructure, equipment, storages, network, deployment models, scalability patterns, workload predictability.
๐ธ Licensing & 3rd party services: costs of using 3rd party services (proprietary or open-source), subscriptions, collaboration platforms like Confluence, Jira, Zoom, etc.
๐ธ Compliance & Security: expenses for regulatory compliance, certifications, data protection, cybersecurity measures.
๐ธ Maintenance & Support: regular updates, performance optimizations, security patching, incident management, bugfixing, customer support and helpdesk services.
๐ธ Operations: everything is required to make the system up and running: personnel, data storage and backups, observability, reliability, usability.
Indirect costs:
๐ธ Trainings & Documentation: user training, documentation preparation and keeping it up to date.
๐ธ Scaling: costs to scale infrastructure and implement performance optimizations when business grows.
๐ธ Future Enhancements: costs of adding new features and expand existing ones, technical debt management.
๐ธ Downtime: the cost of a system outage or data loss. Itโs important to calculate all potential damages: lost productivity, users, money.
๐ธ Upgrades: regular production upgrades and codebase maintenance, additional costs in case of technology license change or end of technology support.
The main goal of the model is to provide a comprehensive view of all costs associated with a software product. This value then can be used in budgeting, ROI and business value calculation, making strategic decisions.
#engineering #costoptimization
