DLESE Accessioning and Deaccessioning Policy
Goals of accessioning and deaccessioning
To achieve the comprehensive, coherent collection envisioned by the Digital Library for Earth System Education (DLESE) community, sustainable and appropriate mechanisms are required to support collection growth and maintenance. This is accomplished by accessioning (adding) and deaccessioning (removing) individual metadata records or collections of metadata records according to policies. Library growth occurs by encouraging the contribution of metadata records about individual or collections of resources. Deaccessioning is a mechanism of quality assurance.
A. Accessioning policy
In order to accession or add library items, the metadata records being contributed and the actual resource materials must meet eligibility requirements. There are different levels of accessioning:
- Eligibility for resources
- Eligibility for collections
- Eligibility for DLESE Reviewed Collection (DRC) membership
When accessioning resources or collections, resource and metadata creators maintain intellectual property rights:
- Rights of resource creators
- Rights of metadata creators
1. Eligibility for resources
These requirements apply to contributions of individual items not intended to be a collection (e.g. a single lesson plan, a satellite image, a course website, etc.). Resource materials need to:
2. Eligibility for collections
These requirements apply to the contribution of groups of related items that are intended to be a distinct named collection. Collections have an organizing principle such as a theme, topic, audience, teaching strategy or some other criteria that can be clearly articulated. Items in the collection and the collection as a whole need to:
3. Eligibility for DLESE Reviewed Collection (DRC) membership
Individual resources or whole collections are eligible for membership in the DLESE Reviewed Collection (DRC). Resources accessible in the DRC meet the eligibility requirements for individual resources or collections and have undergone review against the following criteria:
- Scientific accuracy
- Importance or significance
- Pedagogical effectiveness
- Completeness of documentation
- Ease of use for teachers and learners
- Inspirational/motivational for learners
- Robustness as a digital resource
The DLESE Reviewed Collection best practices document has information about how to verify that resources meet the criteria. In addition, developers of reviewed collections need to:
- Provide a publicly-accessible statement of the review process, including references to rubrics on how the above DRC criteria are met
- Provide a description of the long-term viability of the review process and how the review process may deal with and implement change
- Ensure that the review process is not "internal" (e.g. reviews are not conducted by individuals connected to a resource's creation or publications)
- Demonstrate that the review process is rigorous
- Demonstrate that the review process is well-documented. That is, the review process exposes rubrics, policies, procedures and mechanisms to resource creators, reviewers and the users of reviews (e.g. individuals and digital libraries)
4. Rights of resource creators
Creators (or their institutions, as applicable) retain their respective individual intellectual property rights related to individual resources.
5. Rights of metadata creators
Collection builders (metadata creators) retain their individual intellectual property right to metadata. Collection builders agree that DLESE may modify and reformat metadata to function within DLESE systems and services (e.g. providing metadata to other digital libraries). Collection builders must notify DLESE if they do not want their metadata redistributed.
B. Deaccessioning policy
Resources may be removed (deaccessioned) from the DLESE collection. This means metadata records referencing such resources are deaccessioned (removed) from the library. Deaccessioning occurs if
- The resource URL is broken: i.e. the URL consistently returns an error message in response to repeated attempts to access it over a reasonable length of time
- The resource content changes to the extent that the metadata record no longer accurately describes the resource's content (which may still be within DLESE scope). In order to keep the resource in the library, new metadata needs to be created to accurately describe the resource.
- The resource material is deemed inappropriate or no longer satisfies the DLESE Collection Scope and Policy Statement or the accessioning criteria described in this document
- The resource material no longer satisfies the resource quality guidelines
- Technology needed to use the resource is no longer available
- There has been an official finding of plagiarism or copyright violation concerning the resource material or reviews about resource materials
- The resource creator has requested that the resource material be removed from the DLESE collection
- Metadata quality is discovered to be insufficient or inappropriate according to the metadata best practices
- A DLESE Reviewed Collection (DRC) review no longer applies because the resource material has changed dramatically. At a minimum, the resource is removed from the DLESE Reviewed Collection; it may or may not remain accessible in the library.
Metadata records can be re-accessioned provided the Accessioning Policy is met (i.e. errors are corrected). There is a deaccessioning process.
Last modified April 8, 2004.