The continuous adjustment of provisioned infrastructure capacity to align with observed demand, such that the resource is neither idle nor saturated under representative load. Rightsizing is not a one-time exercise; it is a steady-state discipline that produces a recurring efficiency benefit and a recurring operational cost. The federation rejects rightsizing claims that report only the realised savings without disclosing the operational cost of the rightsizing function itself, including engineer time, tooling expense, and observed regression incidents.
Term in business management literature since the 1980s, originally referring to organisational headcount; transferred to infrastructure capacity in the cloud era.
Federation members reporting rightsizing savings must publish a net figure including operational cost. A gross-of-cost figure is non-conforming and is not admissible as accreditation evidence under UFMS-001:2.4.
@misc{ifo4_glossary_rightsizing,
title = {{Rightsizing}},
author = {{IFO4 Federation Editorial Board}},
howpublished = {{IFO4 Federation Glossary, slug \texttt{rightsizing}}},
year = {2026},
url = {https://ifo4.org/glossary/rightsizing},
note = {Category: FinOps; key: Rightsizing}
}Federation members and accredited practitioners may challenge any entry under TGS-002:1.7. Filed challenges are routed to the editorial board, triaged into the revision register, and resolved in writing on the public docket. The slug remains stable through any revision.