Closure Playbook glossary V2

V1 of the Closure Playbook— glossary of key terms, abbreviations and acronyms published in 2023 is fully aligned to the ISPE Baseline Guide from 2023 and the ASME –BPE from 2023, V2 of the Closure Playbook— glossary of key terms, abbreviations and acronyms is expanded, containing several key definitions not present in V1 and additional Acronyms present in the Closure playbook – closure analysis risk assessment paper (published in 2025). The updated document represents current thinking around Closed Systems and Closed Processing in that it provides a more concise definition of a Closed System and separates the two steps required for a closed system into a dedicated, detailed entry for System Closure. The updated document also provides a more robust definition of Closed Process and Process Closure and subtle changes to other definitions to enhance understanding and clarity.