Duplication Threshold > Orbis Cascade Alliance

About
- Overview of the Alliance
- Incorporation
- Working at the Alliance
- Members
- Membership Application
- 2019-2024 Strategic Plan
- Council
- Membership criteria
- Institutional Representatives
- Board
- History of Alliance
- Helmer Professional Development Award
Contact
- Alliance Staff
- Member staff
- Email Lists
- Report Forms
Documentation
- Archival Collection Management
- Electronic Resources
- Collection Development
- Encoded Archival Description (EAD)
- Digital Collections
- Resource Sharing & Fulfillment
- Digital Preservation
- Systems
- Discovery & User Experience
- Technical Services
Programs
- Discovery & User Experience
- Systems
- Resource Sharing & Fulfillment
- Technical Services
- Shared Content
- Unique & Local Content
Teams
- Team Overview
- Systems
- Discovery & User Experience
- Unique & Local Content
- Resource Sharing & Fulfillment
- Finance
- Shared Content & Technical Services
- Shared ILS
Training
- Training Resources
- Archival Collection Management
- Digital Collections
- Encoded Archival Description (EAD)

About the Alliance Threshold Project

The Alliance advises a voluntary three-copy duplication threshold for books. Library staff apply this consortial guideline when possible within the context of their respective collection and user needs.

Documents related to the development of the threshold:

Unneccesary Duplicate Threshold Guideline (Oct. 2010)
Threshold Recommendations for Council (Nov. 2010)
Threshold Pilot Assessment Procedures (Jan. 2011)
GOBI Data Analysis Example for Threshold Pilot (Jan. 2011)
Threshold Pilot YBP Procedures for Selectors (Jan. 2011)
Threshold Pilot Presentation (Jan. 2011)