ISO 26430-4:2009 デジタルシネマ（Dシネマ）操作—パート4：ログレコード形式の仕様 | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 26430-4 was prepared by the Society of Motion Picture and Television Engineers (as SMPTE 430-4-2008) and was adopted, under a special"fast-track procedure", by Technical Committee ISO/TC 36, Cinematography, in parallel with its approval by the ISO member bodies.

ISO 26430 consists of the following parts, under the general title Digital cinema (D-cinema) operations:

• Part 1: Key delivery message [equivalent to SMPTE 430-1]
• Part 2: Digital certificate [equivalent to SMPTE 430-2]
• Part 3: Generic extra-theater message format [equivalent to SMPTE 430-3]
• Part 4: Log record format specification [equivalent to SMPTE 430-4]
• Part 5: Security log event class and constraints [equivalent to SMPTE 430-5]
• Part 6: Auditorium security messages for intra-theater communications [equivalent to SMPTE 430-6]
• Part 9: Key delivery bundle [equivalent to SMPTE 430-9]

Introduction

This part of ISO 26430 comprises SMPTE 430-4-2008, together with Annex ZZ (which provides equivalences between ISO standards and SMPTE standards referenced in the text) and the following additional information related to subclause 6.1 (Record Text Extension Type) concerning the"RecordDescriptionText" element.

The optional language attribute is an xs:language language code and indicates the language used for Record Description Text. If the language attribute is not present, the default value en is used.

Foreword

SMPTE (the Society of Motion Picture and Television Engineers) is an internationally-recognized standards developing organization. Headquartered and incorporated in the United States of America, SMPTE has members in over 80 countries on six continents. SMPTE's Engineering Documents, including Standards, Recommended Practices and Engineering Guidelines, are prepared by SMPTE's Technology Committees. Participation in these Committees is open to all with a bona fide interest in their work. SMPTE cooperates closely with other standards-developing organizations, including ISO, IEC and ITU.

SMPTE Engineering Documents are drafted in accordance with the rules given in XIII of its Administrative Practices.

SMPTE Standard 430-4 was prepared by Technology Committee DC28.

Introduction

Many devices in D-Cinema exhibition environments must generate log records, which can record all manner of events in the normal and exceptional operation of systems. In order to achieve interoperability, it is desirable that log records are presented in a common basic format.

1 Scope

The purpose of this document is to define XML structures and schema for individual log records and sequences of those records in D-Cinema applications. While not all log records require authentication, this specification provides for optional authentication of records and sequences of records, using digital signatures. Authentication requirements are established by separate application specifications. This document does not define a communications protocol, but is limited to specifying the structure and format of log records and their content. This document does not define a format that devices must use internally, but it does define a format that is to be used when log records are interchanged with other devices.

3 Normative References

The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standards indicated below.