Fast Infoset


Fast Infoset is a binary encoding format for XML data that aims to improve performance and reduce message sizes in XML-based applications. It achieves this by applying binary representation and compression techniques while preserving the structure and semantics of the original XML data. As a result, Fast Infoset enables faster and more efficient transmission, processing, and storage of XML data in various applications.


The phonetics of the keyword “Fast Infoset” would be:/fæst ˈɪnfoʊˌsɛt/

Key Takeaways

  1. Fast Infoset is a binary serialization format which efficiently encodes XML documents, resulting in faster processing and smaller document sizes.
  2. It is designed to be widely compatible with various XML tools and technologies, making it suitable for many different applications, including high-performance web services, streaming, and data storage.
  3. Fast Infoset is a standard defined by ITU-T (International Telecommunication Union – Telecommunication Standardization Sector) and ISO (International Organization for Standardization), ensuring its long-term stability and interoperability.


Fast Infoset is an important technology term because it refers to a standard that enables the efficient serialization and deserialization of XML documents.

This standard helps in significantly reducing the size of XML files, resulting in faster transmission and processing times, ultimately enhancing the performance of applications that rely heavily on XML data exchange.

By providing a compact binary representation of XML documents, Fast Infoset optimizes the parsing, transmission, and storage of information.

Consequently, it contributes to improved resource usage and reduced network latency, which are crucial factors in today’s data-intensive and interconnected world.


Fast Infoset is a technology aimed at optimizing the processing and transmission of XML documents for enhanced efficiency and speed in various applications. It primarily serves the purpose of speeding up the parsing, transmission, and processing of XML files by compressing the XML data while retaining the content’s structure and semantics.

Fast Infoset allows for more efficient communications in applications that depend on XML formats, such as data exchange between web services, data storage, and serialization of object representations. By reducing the size of the XML documents and improving their parsing speed, Fast Infoset enables more rapid transmission and reduced bandwidth usage, which is crucial for applications in high-traffic and resource-constrained environments.

In addition to its primary purpose of providing efficient processing and transmission of XML files, Fast Infoset also offers support for encoding various data types and structures, including binary data. This technology is based on the ASN.1 (Abstract Syntax Notation One) standard, and it leverages the ASN.1 encoding schemes to produce smaller and faster representations compared to conventional XML.

Fast Infoset implementations often lead to decreased latency and improved scalability in applications that rely heavily on XML-based data exchange. By employing Fast Infoset technology, developers can facilitate enhanced performance and resource utilization in software systems that utilize XML as a primary data format.

Examples of Fast Infoset

Fast Infoset is an international standard that aims to optimize the transmission and storage of XML data by compressing the data structure while maintaining its meaning. Here are three real-world examples of its applications:

Telecommunications Industry:In the telecommunications sector, Fast Infoset is applied in the optimization of the XML-based OSS (Operations Support Systems) and BSS (Business Support Systems) interfaces. This allows for efficient data exchange between the systems and improves the response times of telecommunication services. For example, phone number portability relies on XML-based messaging formats, which Fast Infoset can help compress, speeding up the processing of phone number change requests.

Healthcare Industry:In the healthcare industry, Fast Infoset is used to optimize the communication between various healthcare systems, such as Electronic Health Records (EHR) and Health Level Seven Interface (HL7). It enables the reduction of the size of XML-based messages, thus improving data exchange, transmission time, and storage requirements for large and complex medical datasets.

Meteorological Data Exchange:Another real-world example is the exchange of meteorological data between weather forecasting organizations. Large volumes of weather and climatic data are transmitted daily through several meteorological services, and the optimized XML format provided by Fast Infoset can ensure efficient communication, accurate data analysis, and faster dissemination of weather alerts and updates.


Fast Infoset FAQ

What is Fast Infoset?

Fast Infoset is a binary encoding format for the Extensible Markup Language (XML) Information Set (XML Infoset) that aims to provide a more efficient serialization compared to the traditional text-based XML format. It is designed to improve performance and reduce the size of transmitted XML documents, making it particularly useful for network-related messaging and communication.

What are the benefits of using Fast Infoset?

Fast Infoset offers numerous benefits, including faster parsing, reduced memory footprint, smaller document sizes for transmission, and improved network efficiency. These advantages make it ideally suited for applications in which the performance of XML processing is critical, such as web services, messaging systems, and time-sensitive applications.

How does Fast Infoset work?

Fast Infoset works by converting XML documents into a more compact binary format using a combination of algorithms and encoding techniques. This process removes redundant information and optimizes the encoding of common XML structures, resulting in a smaller and more efficient representation of the original XML Infoset. The encoded binary document can then be transmitted, stored, or processed as necessary.

Is Fast Infoset compatible with standard XML parsers?

Fast Infoset-encoded documents are generally not compatible with traditional text-based XML parsers, as they require specialized parsers capable of reading and processing the binary format. However, many software libraries and tools are available for handling Fast Infoset documents, allowing for easy integration with existing XML-based systems.

What is the difference between Fast Infoset and other binary XML formats?

There are several binary XML formats on the market, each with its own goals, strengths, and weaknesses. Fast Infoset is a standards-based, widely adopted format that balances efficiency and simplicity, making it an ideal choice for many situations. Other binary XML formats might offer more aggressive compression or focus on specific use cases, but Fast Infoset remains a versatile and practical choice for a broad range of applications.


Related Technology Terms

  • Binary XML
  • Efficient data serialization
  • XML Information Set
  • Data compression
  • Reduced bandwidth usage

Sources for More Information


About The Authors

The DevX Technology Glossary is reviewed by technology experts and writers from our community. Terms and definitions continue to go under updates to stay relevant and up-to-date. These experts help us maintain the almost 10,000+ technology terms on DevX. Our reviewers have a strong technical background in software development, engineering, and startup businesses. They are experts with real-world experience working in the tech industry and academia.

See our full expert review panel.

These experts include:


About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

More Technology Terms

Technology Glossary

Table of Contents