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The latest version of Simplified Technical English (STE), Issue 9 of ASD-STE100, arrived on January 15, 2025. This update, three years in the making, signifies more than just a revision; it marks STE’s transition from a specification to a full-fledged international standard.

Developed by the ASD Simplified Technical English Maintenance Group (STEMG) with input from national and multi-country Support Teams (STEST), Issue 9 reflects a commitment to clarity, safety, and alignment with international standards. The STEMG, comprised of industry experts and linguists, meticulously reviewed 160 items and change forms, including 11 specifically related to meta-terminology. This collaborative process ensures the standard meets the needs of technical writers and, ultimately, the end-users of the documentation.

Find the right expert to support you with ASD-STE100 training and consultancy: www.asd-ste100.net

From Specification to Standard: A Key Shift

This isn’t just a name change. The move to “standard” reflects STE’s broader applicability. While a specification governs individual projects, a standard establishes universal rules. The official document title now reflects its registered trademark: “ASD-STE100 Simplified Technical English: Standard for Technical Documentation.”

Originally designed for aerospace and defense, STE is now used across various sectors, including rail, medical, automotive, and renewable energy. Its focus on clear, unambiguous language reduces human error, especially for non-native English speakers, leading to improved documentation quality, enhanced safety, and smoother global communication.

The Core of STE: Rules and Dictionary

ASD-STE100 is built on two pillars: writing rules and a controlled dictionary. The rules provide strict guidelines for grammar, style, and sentence structure, making content easily understandable for a global audience. The dictionary lists approved words, their definitions, and usage examples, along with a list of unapproved words and alternatives. This standardization of terminology ensures consistency and avoids confusion.

What’s New in Issue 9?

While no new rules were added, 31 of the 53 existing rules were clarified. The dictionary saw significant updates, with 555 entries revised for accuracy and relevance. A major focus was the meta-terminology review. In the context of ASD-STE100, terminology refers to the words and phrases used within the standard itself, such as “technical noun” and “technical verb.” Meta-terminology, on the other hand, refers to the terms used to describe and categorize those terms, such as “noun” and “verb.”

Essentially, meta-terminology is the language we use to talk about the language of the standard. It provides a framework for understanding the relationships between different types of terms and how they should be used.

The distinction between terminology and meta-terminology is important because it helps to ensure that the standard is clear, consistent, and easy to understand. By using precise meta-terminology, the ASD-STE100 Maintenance Group can avoid ambiguity and ensure that the standard is interpreted correctly by technical authors and translators.

Meta-Terminology Refresh: Aligning with International Standards

Issue 9 aligns with ISO 1087-1:2019, modernizing legacy classifications. “Technical name” and “technical verb” are now “technical noun” and “technical verb (term).” Subject field classifications have also been refined, with new categories added under Rules 1.5 and 1.12.

User-Centric Approach: Balancing Precision and Practicality

The STEMG prioritized usability for technical writers, recognizing that most aren’t linguists. Simplicity was key, even while maintaining terminological precision. For example, the dictionary retains the “word” column designation instead of more complex lexicographic terminology. Balancing correct meta-terminology with practical application was a key challenge. The goal was always to empower authors to create clear, accessible documentation. Defining technical verbs, in particular, required careful consideration to ensure both accuracy and ease of understanding.

The Future: AI and Collaboration

The STEMG and STEST are now exploring how AI can enhance STE compliance checks, provide real-time feedback, and automate terminology updates. Collaborations with universities are examining AI-driven tools to streamline technical documentation, improve accessibility, and ensure interoperability.

Issue 9 represents a significant step for ASD-STE100. Its evolution to a global standard, coupled with meta-terminology updates and alignment with international standards, ensures its continued relevance. With a focus on AI and digital transformation, STE is poised to evolve further in the age of smart documentation and Natural Language Processing.

The release of ASD-STE100 Issue 9 is a significant advancement in Simplified Technical English (STE). This latest issue reinforces STE’s position as the leading controlled language for creating clear, concise, and consistent technical documentation across diverse industries.

The Importance of Simplified Technical English

In today’s interconnected world, technical documentation must be readily understood by a global audience, regardless of language proficiency. STE addresses this challenge by providing a structured set of writing rules and a controlled vocabulary that minimizes ambiguity and maximizes comprehension. This results in improved safety, increased efficiency, and reduced translation costs. STE is widely adopted in sectors such as aerospace, defense, manufacturing, energy, and increasingly, in other technical fields.

Key Improvements in Issue 9

ASD-STE100 Issue 9, developed and maintained by the ASD Simplified Technical English Management Group (STEMG), builds upon previous versions with key improvements designed to meet the evolving needs of the technical communication landscape. A primary focus of this release has been the comprehensive review and modernization of legacy terminology. Terms established in the 1980s during the early development of AECMA Simplified English have been meticulously examined and updated, ensuring alignment with contemporary usage and international standards, including ISO 1087-1:2019. This terminological refinement included the reclassification of technical nouns and verbs, enhancing precision and consistency within specific subject domains.

Refining the STE Standard 

While Issue 9 does not introduce entirely new rules, it features important revisions to the wording of 31 of the existing 53 rules. These changes reflect current best practices in technical communication and ensure clarity and ease of application. Furthermore, 555 entries in the STE dictionary, comprising words, definitions, and illustrative examples, have been updated to reflect the latest linguistic and technical conventions.

A Collaborative and Rigorous Development Process

The development of ASD-STE100 Issue 9 exemplifies the collaborative nature of the STE community. STEMG worked closely with academic experts and STE users worldwide throughout the process. A two-month global feedback period allowed for extensive review and input from practitioners, ensuring that the final release is robust and validated by real-world application.

McLaren Receives First Official Copy

In a demonstration of STE’s broad applicability, the first official copy of ASD-STE100 Issue 9 was presented to McLaren, the 2024 Formula 1 Constructors’ World Champions. As a pinnacle of high-performance engineering, McLaren understands the critical importance of precise and unambiguous technical communication. This presentation highlights STE’s value in complex, technically demanding environments beyond the traditional aerospace and defense sectors.

STE is widely adopted in sectors such as aerospace, defense, manufacturing, and energy.

Simplified Technical English: Breaking Barriers Across Industries

Simplified Technical English (STE) has its roots in the aerospace industry, where it emerged as a solution to address language and documentation challenges. While it initially served the aerospace sector, STE’s versatility and adaptability have made it relevant and applicable to various industries. This article explores the evolution of STE from an aerospace standard to its potential in revolutionising documentation practices across diverse sectors.

The Aerospace Connection

Aircraft maintenance, a safety-sensitive domain, faced issues that stem from ineffective language and documentation practices. To address this, the aerospace industry spearheaded the development of the STE specification over the past 40 years. However, despite its origins, STE does not consist solely of aerospace-specific rules. In fact, a majority of the writing rules apply universally, with only a few minor adjustments necessary to suit different industries.

Fine-tuning the Vocabulary

While some aerospace- or defence related terminology exists in the general dictionary of STE, it comprises a mere 5% of the overall words. These highly technical terms, often related to nuts and bolts, require adaptation when dealing with software-based interfaces and non-aerospace contexts. By omitting these industry-specific terms and adding a handful of words relevant to specific industries, STE can be readily customised for a wide range of technical documentation purposes.

STE Beyond Aerospace

The power of STE lies in its versatility. Its applicability extends well beyond the aerospace industry. For instance, even financial institutions can benefit from the streamlined and precise language of STE when documenting banking processes. By embracing STE, organisations from diverse sectors can enhance clarity, efficiency, and comprehension in their technical documentation.

Adaptability to Specific Needs

STE’s flexibility allows for customisation to suit unique requirements. As the specification primarily involves additions to the dictionary, aerospace clients themselves often make customisations to cater to different systems onboard their aircraft. This adaptability has been demonstrated by unexpected users, such as a coffee machine manufacturer. Although seemingly unrelated to aerospace, their coffee machines are installed in a vast majority of passenger aircraft. Documentation for these machines, whether used in offices, medical practices, or cafeterias, can be effectively developed using STE, with only slight relaxation of the rules originally designed for aerospace.

Simplified Technical English, born out of the aerospace industry, has evolved into a versatile language specification capable of transforming documentation practices across various sectors. Its effectiveness in enhancing safety, efficiency, and clarity has made it applicable to industries far beyond its initial scope. With the power to streamline communication and promote comprehension, STE offers organisations a powerful tool to optimise their technical documentation, regardless of their industry.