1、 -_- -_- - SAE AS*4159 88 8357340 0033275 7 y (5-7 9 - AS 4159 ThengineeringSociety AEROSPACE =For Advancing Mobility -Land sea Air and Space gr :o0 COMMONWEALTH DRIVE, WARRENDALE, PA 196 STANDARD Issued 4-1 2-88 e Submitted for recognition as an American National Standard SPECIFICATION FOR AN AUTOb
2、ATED INTERCHANGE OF STANDARDS DATA TABLE OF CONTENTS Page No. 1. INTRODUCTION 3 1.1 Purpose . 3 1.2 Scope . 3 i .3 Background 3 1.4 Approach 3 1.5 Definitions . 4 2. APPLICABLE DOCUMENTS 6 O 3. GENERAL REQUIREMENTS 7 3.1 General Description . 7 3.2 Data Representations 7 3.3 Distribution Controls an
3、d Conventions . 8 3.3.1 Distribution Controls . 8 3.3.1.1 Ini tiatian of Delivery 8 3.3.1.2 Read-only Protection 8 3.3.1.3 Organization of Files . 8 3.3.1.4 Document Declaration File . 9 3.3.1.5 Identification of Files . 10 3.3.2 Communication Conventions . 10 3.3.2.1 File Transfer . 11 3.3.2.2 Glid
4、e Area Network . 11 3.3.3 Distribution via Storage Media 11 3.4 Detail Formats for Technical Data . 11 3.4.1 Document File Architecture and Representation Forms . 12 3.4.1.1 Technical Publication Architecture 12 3.4.1.2 Clear Text 12 SAETechnical Board Rules provide that: “This report is published b
5、y SAEto advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report
6、 at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 1988 Society of Automotive Engineers, Inc. Printed in U.S.A. Ali rrghtc reserved. e - - - -_ - _ . _ . SAE AS*llL59 88 W 8357340 00332b 9-W AS 4159 Page
7、2 3.4.1.3 3.4.1.4 3.4.1.5 3.4.1.6 3.4.2 3.4.3 3.4.3.1 3.4.3.2 3.4.4 3.4.5 3.4.6 3.4.7 3.5 3.5.1 3.5.2 3.5.3 3.5.4 3.6 3.6.1 3.6.2 3.6.3 3.6.4 3.6.5 3.6.6 4 . 4.1 4.2 5 . 6 . TABLE OF CONTENTS (Continued) Paae No . Text Markup Coding Scanned Images Computer Graphics Metafile IGES Application Subset .
8、 Text Format . Table Formats . Clear Text Tables . Parametric Search Support . Graph Formats . Engineering Drawing and Diagram Formats General Illustration Formats Photo-1mage.Formats . Special Interface Requirements Updating Standards Informa tion Interface Change Control User Manual . Quality Cont
9、rol Printout Document Format Quality Requirements Rotated Landscape Pages . Text Line Width . Size and Clarity Foldout Pages . Facing Pages Blank Pages . . QUALITY ASSURANCE . Developmental Testing . Quality Control Testing . IMPLEMENTATION STRATEGY . NOTES . 12 13 13 13 14 14 14 14 15 16 16 16 16 1
10、6 16 16 17 17 17 17 17 17 17 17 18 18 18 19 19 _- _ . 1. INTRODUCTION : 1.1 Pur ose: This specification defines the general, quality assurance and *ntation requirements for digital delivery of aerospace .standards. 1.2 Scope: The requirements contained herein are intended for those standards that ar
11、e promulgated by national standards organizations and used in the aerospace industry. various graphic data which comprise the standards. Both interface control and interface definitions are covered in this specification. The internal architectures of the computer facilities of either the providers o
12、r the users are not constrained by this interchange specification. Rather, neutral formats and transmitting media are defined in order to enable niore cost-effective ways to distribute information for computer users than by sending printed documents. These technical data include narrative text , tab
13、les and This method for digital delivery of aerospace standards is intended to allow the users to display and maintain standards on current computer systems in addition to producing hard copy comparable to existing printed standards. 1.3 Background: The aerospace industry, government agencies and in
14、dustrial societies share a common interest in exchanging data in electronic form because the exchange of information in printed paper form is proving to be more costly in overall handling and use. Also, as industry and government continue their evolution towards higher levels of automation, the need
15、 exists to provide data in computer sensible form so that computer systems can process and operate on the data. A recent movement towards this end is the Computer-aided Acquisition and Logistics Support (CALS) initiative of the Department of Defense. This specification complies with the intent of CA
16、LS, specifically the requirements of MIL-STD-1840, and correlated industry specifications. exchanging three-dimensional geometric data, require further technological development, adequate technology is currently available to provide the effective and economical interchange of non three-dimensional,
17、book-form information in electronic form. 1.4 Approach: While it is recognized that certain CALS objectives, such as Accordingly, the general approach for standards interchange is initially to provide for interchanging that data converted from existing paper publications. protocols that will be used
18、 for the initial conversion and interchange. However, full details have not yet been developed for later upgrading. This specification will be revised for the purpose of including formats lar processable, logical content of tables and graphs, and including detailed procedures for on-line transfer me
19、chanisms. The logical form of tables and the addition of search parameters will enable using database management system queries to find particular parts, materials, processes, etc. As this specification is enhanced by revisions, a strategy for upgrading the formats of computerized data will also be
20、provided. This specification is rigorous for those formats and - SAE AS*4L59 88 a 8357340 0033298 2 a AS 4159 se= Page 4 1.4 1.5 (Continued) : Initial conversion of standards data is expected to yield most graphics data in the minimally acceptable formats such as scanned images. initially using mini
21、mal formats as well as enhancements to the specifications, standards providers will plan for upgrading the data, as applicable, fol lowing the initial conversion. This approach may be viewed as a series of phases moving toward a preferred end state. An implementation strategy for this approach is in
22、cluded in 5. Due to The need remains for distribution of standards in printed form for an indefinite period, but this specification anticipates the shift of the “primary authority“ versions of the standards from hard copy forms to computer based informat ion. Def in it ions : ASCII Compound Document
23、 Computer Graphics American Standard Code for Information Interchange as defined in ANSI X3.4-1986. defines 7 bit codes. In the future, the 8 bit definition in ANSI X3.134-1987 may be specified.) A digital representation of a paper document consisting of multiple object types such as text, graphics
24、and photo images, (This standard The representation of a picture in terms of computer graphic primitives such as lines, markers, polygons, text and cell arrays, Engineering Drawing Two-dimensional geometry, usual ly representing 3D parts, assemblies, etc, , and associated text annotations. They are
25、historically the medium of engineering design or product definition, Data Graph An exhibit of relationship between sets of numeric data, either as points with coordinates or lines, used to extract data values by interpolating or extrapolating or to simply illustrate a trend or f ormu 1 a , Genera 1
26、Illustration Two-dimensional line art with labels, titles, etc., which is not inherently useful for extracting computational data values or geometric information. Paragraph Text Photo Image Product Definition Data Grammatically punctuated word strings which express a thought or point. A photographic
27、 print with shading (halftone), A digital representation for product data that is required for the anatysis, design, manufacture, test and support of a product. l i Page 5 -AC -s AS 4159 1.5 (Continued): Provi der Scanned Image Tab1 e User A standards issuing company or organization which delivers s
28、tandards from their computing system to a user computer system. The representation of an image by successive scan lines of picture elements or PIXELS (PELS). images are often interchanged as facsimile data transmissions. Scanned An orderly arrangement of data in rectangular form of rows and columns
29、which is used to extract discrete data. A company or body of users which receives standards from external standards-making organizations and uses the standards via their computer system. The following acronyms are used: CALS Computer-aided Acquisition and Logistic Support CC ITT International Consul
30、 tative Commi ttee on Telegraphy and Telephony C GM Computer Graphics Metafile DDN Defense Data Network FIPS Federal Information Processing Standard FTN-1 GOSIP Government Open Systems Interconnection Procurement Fi 1 e Transfer, Access and Management I GES Ini tia1 Graphics Exchange Specification I
31、S0 International Standards Organization ODA/ODIF Office Document Archi tecture/Office Document Interchange Format os I Open Systems Interconnection PDES Product Data Exchange Specification PIXEL (PEL) Picture Eiement SGML Standard General i zed Markup Language STEP Standard for the Exchange of Produ
32、ct Rodel Data TOP Technical and Office Protocols AS 4159 Page 6 2. APPLICARLE DOCUHENTS: The following specifications and standards documents form a part of this specification to the extent specified herein. referenced i tem shall apply unless otherwise indicated. The latest revision of each ANSI X3
33、.4-1986 ANS I Y1 4.26M. 1987 CCITT T.6 CCITT X.25 DOD-D-( IGES) FED-STD-1064 FED-STD-1065 FIPS PUB 25 FIPS PUB 50 FIPS PUB 79 FIPS PUB 100 FIPS PUB 100-1 IS0 2022 IS0 2375 ISO/DIS 8613 Anerican National Standard Code for Information Interchange (Note: implementation. A future revision will specify t
34、he ANSI X3.134-1987 which defines an 8-bit code.) Dig! tal Representation for Communication of Product Definition Data (IGES V3.0) Facsimile Coding Schemes and Coding Control for Group 4 Facsimile Apparatus Interface Between Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE)
35、for Terminals Operating in the Packet Mode on Public Data Networks Dig1 tal Representation for Communication of Product Data: Appl ication Subsets Telecommunications: General Aspects of Group 4 Facsimile Telecommunications: Control Functions for Group 4 Facsimile Apparatus Recorded Magnetic Tape for
36、 Information Interchange (1600 CPI, PE) (ANSI X3.39) Recorded Magnetic Tape for Information Interchange (6250 CPI, Group-coded Recording) (ANSI X3.54) Magnetic Tape Label s and Fil e Structure for Information Exchange (ANSI X3.27) Interface Between Data Terminal Equipment (DTE) and Data Circuit-Term
37、inating Equipment (DCE) for Operation with Packet -Swi tc hed Data Commun i ca ti on s Network s Interface Between Data Terminal Equipment (DTE) and Data Circui t-Terminating Equipment (DCE) for Operation with Packet-Switched Data Comnunications Networks Information Processing - IS0 7-bi t and 8-bi
38、t Coded Character Sets - Code Extension Techniques Data Processing - Procedure for Registration of Escape Sequences Information Processing - Text and Office Systems - Office Document Architecture (ODA) and Interchange Format This is for the initial Facsimile Coding Schemes and Coding AS 4159 I Page
39、7 L.AE -a 2. (Continued): IS0 8632 Information Processing Systems - Computer Graphics Metafile for the Storage Transfer of Picture Description Information IS0 8879 Text Preparation and Interchange - Processing and Markup Languages - Part Six: Generic-Document Representation ( SGML ) IS0 8571 Fil e T
40、ransfer, Access and Management (FTAM) MI L -STD- 1 840 Automated Interchange of Technical Information TOP V3.0 Technical and Office Protocols - Version 3.0 (Implementation Release, May 1987, MAP/TOP Users Group, Society of Manufacturing Engineers) 3. GENERAL REQUIREMENTS: 3.1 General Description: Th
41、e interchange of standards information is defined primarily in terms of the delivery methods and the formats used for the data as it is being delivered. Delivery methods include the shipping of physical storage media and the transfer of the data over communications networks. Data formats specificall
42、y define file and record contents, as well as data representation methods for the various data types which are identified in 3.2. 3.2 Data Representations: This specification retains the composition architecture of compound technical documents. The digital representations of standards documentation
43、shall be integrated to make available the total content of standards. That is, no elements or objects included by the originator to produce the total effect of a standard may be left out, although the particular organization or order of display may be significantly different from its paper publicati
44、on. The data types are those typically included in technical publications: paragraph text, tab1 es, physical /mathemati cal data graphs, di agrams and engineering drawings, general illustrations (for example, composites of shaded areas, icons and line art), and photo images. representations identifi
45、ed for each type are: The digital Paragraph Text ASCI I character strings Tab1 es ASCII alphanumeric fields by column and row (together with attributes), or ASCII character strings (text without defined structure) Data Graphs Scanned image, or computer graphics, or al gori thmic representations (tog
46、ether wi th coordinate attributes) Engineering Drawings and Diagrams Scanned image, or computer graphics , or geometric definitions _- I - - - SAE ASml(L59 88 83573qO 0033302 O AS 4159 Page 8 3.2 (Continued): General I1 1 ustrations Scanned image, or computer graphics Photo Images Scanned image or c
47、omputer graphics Specific definition of formats for the data types and preferred formats are given in 3.4. 3.3 Distribution Controls and Conventions: Communications and media options for distribution of data between the originating computer and receiving computers or devices are defined as: transpor
48、t via physical storage media such as magnetic tape. on-line network access, and off-line 3.3.1 Distribution Controls: Control over interchange is determined by: the method for initiating delivery, computer system file protection, and the fil e organization and identification records. 3.3,l.l Initiat
49、ion of Delivery: standards data on storage media by mail or telephone. honor the request by initiating the writing of tape or other storage media, packaging and sending the material. Additionally, the provider shall allow users to initiate and gain on-line access to standards data to perform transfer of standards documents via communications networking. for implementation phases 2 and 3, identified in Table 5-2.) Users may make requests for transfer of The provider will (This capability is intended 3.3.1,2 Read-only Pr
