olemus
teenusetasemelepet täiendav
poolte kohustusi täpsustav
teenuse andmisega seotud lepe

ülevaateid
https://itsm.certification.info/slavola.html

https://en.wikipedia.org/wiki/Operational-level_agreement

https://www.process.st/operational-level-agreement/

https://wiki.en.it-processmaps.com/index.php/Checklist_Operational_Level_Agreement_(OLA)

https://www.itil-docs.com/operation-level-agreement/