# GLUE Specification v 2.1 (test copy)
GFD-R-P.xxx **Authors:**
Category: Recommendation Alessandro Paolini°, EGI Foundation
GLUE Working Group Baptiste Grenier°, EGI Foundation
Enol Fernandez°, EGI Foundation
Paolo Andreetto°, INFN-PADOVA
Marco Verlato°, INFN-PADOVA
Stephen Burke, RAL
Shiraz Memon\*, FZJ
JP Navarro\*, ANL
\*co-chairs
°editor
Jul 13th, 2018
Status of This Document
This document provides information to the Grid community regarding the specification of the GLUE information model. Distribution is unlimited.
Copyright Notice
Copyright © Open Grid Forum (2009, 2019). All Rights Reserved.
Trademark
Open Grid Services Architecture and OGSA are trademarks of the Open Grid Forum.
Replaces
This document obsoletes GFD-R-P-147.
Abstract
The GLUE specification is an information model for Grid entities described using the natural language and UML Class Diagrams. As a conceptual model, it is designed to be independent from the concrete data models adopted for its implementation. This document defines the GLUE 2.1 model by extending the GLUE 2.0 model to include Cloud resources and services. Rendering to concrete data models such XML Schema, LDAP Schema and SQL are provided in a separate document.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.ogf.org/glue-2-1-test/master.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.