Frontmatter

©January 1997, The Open Group All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright owners.

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Copyright © 1996, Computer Measurement Group
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Preface

This Document

• Measurement Layer Interface (MLI) which is described in Part 2 of this specification.

  The MLI provides the interface between measurement applications and a UMA data services layer, which interacts with the UMA measurement control layer to provide required performance data.

• Data Capture Interface (DCI) which is described in Part 3 of this specification.

  The DCI is the interface between the data capture layer and the measurement control layer of the UMA architecture.

The UMA Guide (see Part 1 of this specification). reviews the issues surrounding performance measurement in Open Systems, describes the general UMA architecture, and discusses user considerations in adopting the UMA.

Audience

Structure

• Chapter 1, Introduction - provides an overview of the datapool.

• Chapter 2, About the Datapool - explains key terminology, and how data is grouped into "messages", and the different classes/subclasses and "levels" within this organization.

• Chapter 3, Data Capture Overview - describes the assumptions about the data capture process, from obtaining the raw data to producing a finished metric for use by a Measurement Application Program (MAP).

• Chapter 4, Datapool Metrics - establishes the Level 0 metrics and a proposed set of Level 1 metrics, including relevant MLI and DCI information.

Trade Marks

UNIX® is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company Limited.

X/Open® is a registered trademark, and the "X" device is a trademark, of X/Open Company Limited.

Acknowledgements

This specification was developed by the Performance Management Working Group. The PMWG was originally part of UNIX International, and is now part of the Computer Measurement Group.

X/Open gratefully acknowledges the work of the PMWG in the development of this specification and in the review process for this publication.

Major contributors to the Data Pool Definitions specification include:

Participants who have made contributions to the process of developing these specifications are listed below along with their corporate affiliation at the time of their contribution. Our sincere apologies to anyone whom we may have missed.

Referenced Documents

DCI

CAE Specification, January 1997 - Systems Management: UMA Data Capture Interface, Part 3 of "Universal Measurement Architecture (UMA)" CAE Specification (ISBN 1-85912-117-9, C427).

MLI

CAE Specification, January 1997 - Systems Management: UMA Measurement Layer Interface, Part 2 of "Universal Measurement Architecture (UMA)" CAE Specification (ISBN 1-85912-117-9, C427).

UMA

Guide, December 1994, Systems Management: Guide to the Universal Measurement Architecture (ISBN 1-85912-073-3, G414).

Footnotes

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Editor

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Past Editor