5.24 Define performance, environmental, and human budgets

Define and apply lifecycle sustainability and performance budgets, set evidence-based KPIs, and track measurable improvements over time.

Environmental budget:
Outline and document digital sustainability budget criteria covering the full lifecycle of products and services, including creation, usage, and decommissioning. Ensure these limits are actively applied and communicated to all affected parties.
Performance budget:
Use performance budgets to cap the size and complexity of digital products or services, actively reducing data transfer and file sizes to improve performance and create more sustainable, lower-impact digital experiences.
Human budget:
Define KPIs for engineering effort, development time, or sprints. Optimize workflows sustainably so work is done with care, while prioritizing worker health, wellbeing, and sustainable workloads.
Measurable improvements:
Establish baseline measurements and track improvements over time. Require that improvement claims are supported by evidence.