ASN Ingenieursgesellschaft mbH und Co. KG

Glossary - Definition

ATA iSpec 2200

The ATA iSpec2200 is a standard used worldwide in the commercial aviation industry, developed and published by Airline for America (A4A) - formerly Air Transport Association (ATA). This standard regulates the content, structure and electronic exchange of aircraft, maintenance and flight operations information.

Leading European aircraft and equipment manufacturers are also following the standards defined in the ATA iSpec 2200 for their technical documentation. The aim of the ATA iSpec 2200 is to reduce costs and facilitate documentation creation while at the same time improving the quality and up-to-dateness of information. The structure is based on an SGML DTD. As a result, the electronic use and further processing of the technical information is guaranteed.

ATA Spec 2000

The ATA Spec2000 is an international aviation specification created for the automation of business processes and the information exchange relating to aircraft parts, materials, maintenance and reliability. This specification covers the comprehensive and diversified exchange of information and is used worldwide by nearly all airlines and suppliers. ATA Spec2000 incorporates the topics: stockpiling, spare parts and supply planning, ordering and invoicing, repair ordering, reliability for data exchange, shipment monitoring support system, guarantee handling, traceability of shipment parts, certification documentation and electronic vehicle log.

ASD S1000D (TM)

The specification S1000D (TM) "International Specification for Technical Publications utilizing a Common Source Database" is of worldwide relevance for technical documentation in the aviation and defence industries. European publisher is the ASD (Aero Space and Defence Industries Association of Europe, Brussels) as successor of the AECMA, US-American publishers are the AIA (Aerospace Industries of America) and the ATA (Air Transport Association of America, Inc.) respectively A4A (Airlines for America).

S1000D divides the documentation of systems according to their system architecture into subsystems and components (equipment breakdown) using a so-called "Standard Numbering System" (SNS).

According to S1000D the documentation consists of data modules which are created and stored without redundancy in the CSDB, originally using the mark-up language SGML, in versions 1.9 and later using XML. A unique module is assigned to every part defined as subsystem or component in the equipment breakdown. Therefor the specification provides (at this time 14) different document base types using respective SGML DTDs and XML schemas.

The most commonly used S1000D versions are:

  • V1.7.x
  • V1.9
  • V2.3
  • V3.0
  • V4.0.1
  • V4.1
  • V4.2
  • V5.0


ASD - STE100 (Simplified Technical English)

ASD-STE100 Simplified Technical English is a controlled language in which the natural English was reduced to a standardized subset for a specific purpose.

It was created for maintenance documentation in the aerospace industry and is nowadays a standard in the aviation and defence industries.

It is not to be confused with basic English, which was created for general language usage.

The purpose of ASD-STE100 is:

  • to reduce polysemy
  • to raise the comprehensibility for non-native speakers
  • to lower the costs and the effort of translations
  • to enable automatic translations.

ASD S2000M

ASD S2000M  „ International Specification for Materiel Management and Integrated Data Processing for Military Equipment “ is an internationally recognised standard created to guarantee the information exchange in material management processes, in projects and between military maintenance units and suppliers.

ASD S3000L

ASD S3000L “International Procedure Handbook for Logistic Support Analysis LSA” is an internationally recognised standard and the principal tool for:

  • the development of a product with focus on maintainability, reliability, testability and optimized life cycle costs
  • defining all required resources to support the product in its intended use, during in-service operation.

ASD S4000P

ASD S4000P “International procedure Handbook for Scheduled Maintenance Analysis” is an internationally recognised standard and defines the procedures of the methodology and decision logic used as base for the development of the scheduled maintenance program for any technical platform, system, equipment, vehicle, facility etc. (air, sea, land, space, civil or military). It is focussed on the safety, reliability, mission accomplishment and ecological aspects at reasonable cost.


Integrated Logistic Support (ILS) is a methodology used in the aviation and defence industries that is necessary for the support of operation, maintenance and monitoring of operational risks.

Adapted to the specific needs and the product, the application of the integrated logistics supports the awareness of all involved parties for the necessity of the cost effective use of the available resources in order to minimize the costs of production and operation in the complete life cycle. 


Logistic Support Analysis (LSA) is a procedure to systematically and analytically forecast the future demand of resources for maintaining the operability inside a system. Therefore, the systems and the equipment are evaluated together with their modules. The results of the analysis are needed for the planning of materials and maintenance as well as for the technical documentation. 


The American National Standards Institute ANSI (1919-1928 AESC, American Engineering Standards Committee, 1928-1966 ASA, American Standards Association, 1966-1969 USASI, United States of America Standards Institute) is an American institution for the standardization of industrial procedures. It is member of the international organization for standardization (ISO). The German equivalent is the Deutsche Institut für Normung e. V. (DIN).


The Deutsche Institut für Normung e. V. (abbreviated to DIN) is the most important national organization for standardization in the Federal Republic of Germany.

The DIN-standards are used to promote rationalizing, communication, assurance of usability, quality assurance, compatibility, interchangeability, health, safety, consumer protection and environmental protection. During their development, generally accepted good engineering practices and the state of technology are considered as far as possible. 


Electrotechnical topics are handled by the DIN together with the German Verband der Elektrotechnik (VDE) in the DKE Deutsche Kommission Elektrotechnik Elektronik Informationstechnik, a joint commission of the DIN and VDE.

The VDE is an association for electrical engineering, electronic engineering and information technologies together with their sciences, consecutive technologies and appliances. It promotes an optimized environment for innovation, safety standards, a modern training of engineers and a high level of acceptance for technology in the general public. The association combines science, standardization and the testing of products. Focal points of the VDE are safety in electrical engineering, the development of generally accepted good engineering practices and the certification of equipment and systems.

Machinery Directive

The directive 2006/42/EG of the European parliament and of the council of 17th May 2006 on machinery amending directive 95/16/EG (recast) (generally called machinery directive) sets rules for a homogenous level of protection to prevent machinery related accidents that are relevant when machinery is distributed in the European Economic Area (EEA) as well as Switzerland and Turkey.

The purpose of the directive is to reduce non-tariff barriers to trade in the union. The European harmonisation of law replaces the national regulations of the single states regarding the distribution of machinery.

CE Marking

Using the CE marking the manufacturer or EU importer declares in accordance with the EU directive 765/2008 "that the product is in conformity with the applicable requirements set out in Community harmonisation legislation providing for its affixing."

Authoring Editorial Guide

An authoring editorial guide is a company-internal set of rules. It is a directive that regulates the content, the document structure, the arrangement as well as the language, the illustration parameters and the relevant procedures.

Additionally it can specify processes for translation, terminology and structuring in accordance with the relevant methodologies. An editorial guide promotes the consistency and quality of the documentation to be produced.