ASD-STAN PREN 9300-013-2006 Aerospace series LOTAR LOng Term Archiving and Retrieval of digital technical product documentation such as 3D CAD and PDM data Part 013 Reference proce.pdf

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1、ASD STANDARD NORME ASD ASD NORM prEN 9300-013 Edition P 1 October 2006 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONGulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: Descriptors: ENGLISH VERSION Aerospace

2、series LOTAR LOng Term Archiving and Retrieval of digital technical product documentation such as 3D, CAD and PDM data Part 013: Reference process description Archival Storage Srie arospatiale LOTAR Archivage Long Terme et rcupration des donnes techniques produits numriques, telles que CAD 3D et PDM

3、 Partie 013 : Description du processus de rfrence Stockage darchive Luft- und Raumfahrt LOTAR Langzeitarchivierung und Bereitstellung digitaler technischer Produktdokumentationen, beispielsweise 3D CAD und PDM Daten Teil 013: Referenzprozessbescheibung Speicherung This “Aerospace Series“ Prestandard

4、 has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments.

5、 Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be s

6、ubmitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawi

7、ng any national standards conflicting with the EN. Edition approved for publication 31 October 2006 Comments should be sent within six months after the date of publication to ASD-STAN Engineering Procedures and Processes Domain Copyright 2006 by ASD-STAN prEN 9300-013:20062 Contents Page Foreword3 1

8、 Scope 4 2 Normative references 4 3 Terms, definitions and abbreviations4 4 Applicability4 5 Archival storage.5 6 Detailed process steps description .6 6.1 General6 6.2 AIP transfer to main storage.6 6.3 Initiate digital time signature process .6 6.4 Set digital time signature 6 6.5 Store to media7

9、6.6 Storage assurance.7 6.7 Update Descriptive Information .7 6.8 Update meta data base8 6.9 Confirm the archiving8 6.10 Generate confirmation report.8 6.11 Receive confirmation 8 6.12 Receive confirmation 9 6.13 Disaster Recovery .9 6.14 Error handling for archival storage9 6.15 Manual edition of D

10、escriptive Information (by the producer) .9 6.16 Manual edition of Descriptive Information (by the administrator)9 7 Support process steps: 10 7.1 Preservation Planning 10 7.2 Guarantee quality of archive . 10 7.3 Administration. 10 7.4 Data Management . 10 8 Data descriptions 11 8.1 General. 11 8.2

11、 Involved roles 11 8.3 Involved data. 11 Bibliography. 14 Figure Figure 1 Archival Storage.5 prEN 9300-013:20063 Foreword This standard was prepared jointly by ASD-STAN and the PROSTEP iViP Association. The PROSTEP iViP Association is an international non-profit association in Europe. For establishi

12、ng leadership in IT-based engineering it offers a moderated platform to its nearly 200 members from leading industries, system vendors and research institutions. Its product and process data standardization activities at European and worldwide levels are well known and accepted. The PROSTEP iViP Ass

13、ociation sees this standard and the related parts as a milestone of product data technology. Users should note that all standards undergo revision from time to time and that any reference made herein to any other standard implies its latest edition, unless otherwise stated. prEN 9300-013:20064 1 Sco

14、pe EN 9300-013 provides a detailed description for the recommended process of the Archival Information Package within the archive as overviewed in EN 9300-010. A main focus lays on the secure process, which implies the setting of digital signatures, disaster recovery and update of archive meta data

15、base. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 14721:2003, Spac

16、e data and information transfer systems Open archival information system Reference model OAIS. EN 9300-003, Aerospace series LOTAR LOng Term Archiving and Retrieval of digital technical product documentation such as 3D, CAD and PDM data Part 003: Fundamentals and concepts. 1)EN 9300-007, Aerospace s

17、eries LOTAR LOng Term Archiving and Retrieval of digital technical product documentation such as 3D, CAD and PDM data Part 007: Terms and References. 1)EN 9300-010, Aerospace series LOTAR LOng Term Archiving and Retrieval of digital technical product documentation such as 3D, CAD and PDM data Part 0

18、10: Overview Data Flow. 2)3 Terms, definitions and abbreviations For the purposes of this standard, the terms, definitions and abbreviations given in EN 9300-007 shall apply. 4 Applicability This EN 9300-013 is applicable to new 3-D product data records and may be applicable to existing 3D product d

19、ata records, on current and earlier products, produced using previous regulations, standards and procedures. The current version is focused on product data as defined in the domain specific parts. 1) In preparation at the date of publication. 2) Published as ASD Prestandard at the date of publicatio

20、n of this standard. prEN 9300-013:20065 5 Archival storage See Figure 1. Figure 1 Archival Storage The process includes the setting of digital time signatures, generation of additional Descriptive Information (DI) for AIPs (meta data for the archive), the physical storage of the data within the arch

21、ive and error checking as well as the steps needed disaster recovery of the stored data. Each company should meet the general recommendations for an archive system and its security, as for example described in ISO 14721:2003 (OAIS). These general recommendations are out of scope. The sub process sha

22、ll be certified. Process Steps Store to Media, Storage assurance, Update meta-database and Disaster Recovery cover administrative aspects of the archive and its software. The steps are out of scope for the process description and this standard. They are shown for completeness. If needed by the commu

23、nity, the preservation of the Desciptive Information of the Archive will be described in the recommended practises of the part 13. Input data: AIP DI Output data: Process control data prEN 9300-013:20066 6 Detailed process steps description 6.1 General Input and output data described in this standar

24、d represent the minimal requirements for the fulfilment of the process steps. Additional data may be added, but must match at a minimum the requirements for the information package. (See EN 9300-003, section 5.3.2.1 “Definition of the core model”). 6.2 AIP transfer to main storage The Archive transf

25、ers the AIP from the working environment to the physical storage environment. Input data: AIP Output data: AIP 6.3 Initiate digital time signature process The administrator initiates the digital time signature process. Output data: Request for authentication Request for time stamp Secret key 6.4 Set

26、 digital time signature The archive sets a digital (time) signature according to the applicable digital signature law. This assures the data integrity, readability and exchangeability during the retention period, and may be used as evidence when identifying the provenance of the information. NOTE A

27、digital time signature is any unique set of letters, characters, symbols or code attached to a digital document with the intention of identifying the sender. At the lower end of the e-signature security scale are formats such as email signatures and the simple attachment of signature images. Higher

28、up the scale we find more secure formats such as pin numbers. At the upper end of the scale are formats using more complex technologies combining mathematical processes, encryption and controlled systems. Input data: Request for authentication Request for time stamp Secret key AIP Support informatio

29、n Output data: AIP Digital signature information prEN 9300-013:20067 6.5 Store to media The Archive stores the AIP physically onto a medium according to meet the requirements of long term archiving and the availability of the stored data. Input data: AIP Support information Output data: Storage info

30、rmation 6.6 Storage assurance The storage assurance function validates the successful transfer of the AIP to the staging area. For digital submissions, these mechanisms might include Cyclic Redundancy Checks (CRCs) or checksums associated with each data file, or the use of system log files to record

31、 and identify any file transfer or media read/write errors. Input data: Storage information Output data: In any case: Statistics If assurance is successful: Results If assurance fails: Error report 6.7 Update Descriptive Information The archive updates the set of descriptive information regarding th

32、e storage assurance and digital time signature information. Input data: Results Digital time signature information DI Output data: If update is successful: DI If update fails: Error report prEN 9300-013:20068 6.8 Update meta data base The archive generates a new entry within the archives meta data b

33、ase. The new entry contains the descriptive information, in addition for example, the reference information, which defines the storage location. Input data: DI Support information Output data: If update is successful: Meta data base update report Meta data base update information (Including the Desc

34、riptive Information) If update fails: Error report 6.9 Confirm the archiving The archive confirms the archiving process after the update of the meta data base. Input data: Meta data base update report Output data: Confirmation information 6.10 Generate confirmation report The archive generates a con

35、firmation report which includes the feedback information for the consumer/ administrator according to the archiving/removal procedures. Input data: Confirmation information Output data: Archiving confirmation report 6.11 Receive confirmation (by the administrator) The administrator receives the arch

36、ives confirmation report. Input data: Confirmation report (for archiving) Output data: prEN 9300-013:20069 6.12 Receive confirmation (by the producer) The producer receives the archives confirmation report. Input data: Confirmation report (for archiving) Output data: 6.13 Disaster Recovery The archi

37、ve duplicates the AIPs and stores the duplicate in a physically separate facility. Input data: If disaster recovery is successful: AIP Meta data base update information Output data: If disaster recovery fails Error report 6.14 Error handling for archival storage Within this process the Administrator

38、 has to perform error fixing procedures for the storage of archiving information packages, the update of meta data base and the preparation for disaster recovery. Input data: Error report Output data: Process control data 6.15 Manual edition of Descriptive Information (by the producer) The Producer

39、shall have the ability to edit and attach several descriptions to the AIPs. The additional Descriptive Information could be, for example, the end of production date for a product - this is not known at the date the data is stored. Input data: DI Output data: DI (completed by the producer) 6.16 Manua

40、l edition of Descriptive Information (by the administrator) The Administrator shall have the possibility to edit and attach several Descriptive Information to the AIPs. The additional Descriptive Information could be, e.g., the end of production date for a product, which is not known at the date of

41、the archival storage. prEN 9300-013:200610 Output data: DI (revised by the administrator) 7 Support process steps: 7.1 Preservation Planning The process provides services and functions for monitoring the environment of the archive and recommendations to ensure that the information stored in the arch

42、ive remains accessible to the consumer over the long term, even if the original computing environment becomes obsolete. Preservation Planning functions include developing recommendations for archive standards and policies and monitoring changes in the technology environment, archiving format and the

43、 addressed consumer. Output data: Support information 7.2 Guarantee quality of archive The process describes the common administrative procedures, which are necessary for maintaining the archive. The process starts after the physical archiving, and ends with the retrieval of archived data, that is,

44、it is valid for the archiving period. Output data: Support information 7.3 Administration This Support Process represents the procedures of the Administration. The Administration is the organization, which is responsible for the management of the archive and its daily operation. The role performs hi

45、gh-level processes, which supports the management and communication with the Producer/Consumer and the Management. Input data: Statistics 7.4 Data Management The Data Management (according to ISO 14721 OAIS) is responsible for maintaining the integrity of the Data Management database, which contains

46、 both Descriptive Information and system information. The Data Management is responsible for creating any schema or table definitions required to support Data Management functions; for providing the capability to create, maintain and access customized user views of the contents of this storage; and

47、for providing internal validation (e.g., referential integrity) of the contents of the database. A log describing the history of activity in the repository shall be archived. The Data Management is carried out in accordance with policies received from Administration. Output data: Support information

48、 prEN 9300-013:200611 8 Data descriptions 8.1 General The descriptions here are informative; the definitions are found in the part EN 9300-007. 8.2 Involved roles 8.2.1 Archive The Archive is the archiving system, which usual supports at least the key functions of an archiving architecture according

49、 to ISO 14721:2003 (OAIS). Key functions are administration, data management, archival storage, access control, preservation planning). 8.2.2 Producer The producer is an organization, person, or client system, which provides the information to be preserved. This can include other archives or internal archive personnel or system components. Typical roles of type “producer“ may be. System Designers, Design Engineers, Subcont