Henrik Frystyk Nielsen
Encyclopedia
Henrik Frystyk Nielsen is a Danish
engineer and computer scientist. He is best known for his pioneering work on the World Wide Web
and subsequent work on computer network
protocols.
, Denmark
.
Nielsen received a Masters Degree in Engineering of Telecommunications from Aalborg University in Denmark
in August 1994.
Nielsen's Web work began at CERN
, when he became Tim Berners-Lee
's first graduate student, and shared an office with Håkon Wium Lie
, the co-inventor of Cascading Style Sheets
. They developed together the Arena
web browser
.
It was at this time he began work with Berners-Lee, and later joined Roy Fielding
et al. Nielsen was invited by Berners-Lee to join the technical staff of the newly formed World Wide Web Consortium (W3C) in 1994. He joined the staff of W3C in March 1995, and continued work on HTTP and other Web protocol topics such as the Line Mode Browser and libwww
.
Nielsen was one of the principal authors of the Hypertext Transfer Protocol
(HTTP) specifications, published in 1996.
He then managed the development of a "next generation" called HTTP 1.1, published in 1999.
He left W3C in July 1999.
Nielsen joined the staff of Microsoft
in August 1999, and began work on SOAP
1.1. Previous versions of SOAP had been proposed as an XML-based object serialization protocol, such as XML-RPC
but through the input of Nielsen, Noah Mendelsohn, and others, SOAP 1.1 grew into a lightweight message-oriented protocol for exchanging semi-structured information in a highly decentralized environment.
In 2000, Nielsen joined as an editor the standardizing effort of SOAP within the W3C XML Protocol Working Group which eventually became SOAP 1.2.
In 2003, Nielsen started an incubation project together with George Chrysanthakopoulos focusing on providing a new Web-oriented application model and associated programming model suited for highly concurrent and distributed environments. An output of the incubation is DSSP, a SOAP-based protocol that augments the Web and HTTP model with structured data manipulation and event notifications. By the end of 2005, the incubation moved into productization as Nielsen and Chrysanthakopoulos joined the newly formed Microsoft Robotics Group. In June 2006 the first version of the Microsoft Robotics Studio
shipped to the public. Nielsen is currently the Principal Architect of the Windows Communication Foundation team at Microsoft, working on WebSockets
and some other technologies.
Danes
Danish people or Danes are the nation and ethnic group that is native to Denmark, and who speak Danish.The first mention of Danes within the Danish territory is on the Jelling Rune Stone which mentions how Harald Bluetooth converted the Danes to Christianity in the 10th century...
engineer and computer scientist. He is best known for his pioneering work on the World Wide Web
World Wide Web
The World Wide Web is a system of interlinked hypertext documents accessed via the Internet...
and subsequent work on computer network
Computer network
A computer network, often simply referred to as a network, is a collection of hardware components and computers interconnected by communication channels that allow sharing of resources and information....
protocols.
Biography
Henrik Frystyk Nielsen was born 1 August 1969 in CopenhagenCopenhagen
Copenhagen is the capital and largest city of Denmark, with an urban population of 1,199,224 and a metropolitan population of 1,930,260 . With the completion of the transnational Øresund Bridge in 2000, Copenhagen has become the centre of the increasingly integrating Øresund Region...
, Denmark
Denmark
Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...
.
Nielsen received a Masters Degree in Engineering of Telecommunications from Aalborg University in Denmark
Denmark
Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...
in August 1994.
Nielsen's Web work began at CERN
CERN
The European Organization for Nuclear Research , known as CERN , is an international organization whose purpose is to operate the world's largest particle physics laboratory, which is situated in the northwest suburbs of Geneva on the Franco–Swiss border...
, when he became Tim Berners-Lee
Tim Berners-Lee
Sir Timothy John "Tim" Berners-Lee, , also known as "TimBL", is a British computer scientist, MIT professor and the inventor of the World Wide Web...
's first graduate student, and shared an office with Håkon Wium Lie
Håkon Wium Lie
Håkon Wium Lie is a web pioneer, a standards activist, and, , the Chief Technology Officer of Opera Software.He is best known for proposing the concept of Cascading Style Sheets while working with Tim Berners-Lee and Robert Cailliau at CERN in 1994. As an employee at W3C, he developed CSS into a...
, the co-inventor of Cascading Style Sheets
Cascading Style Sheets
Cascading Style Sheets is a style sheet language used to describe the presentation semantics of a document written in a markup language...
. They developed together the Arena
Arena (web browser)
The Arena browser was an early testbed web browser and web authoring tool for Unix. Originally authored by Dave Raggett in 1993, the browser continued its development at CERN and the World Wide Web Consortium and subsequently by Yggdrasil Computing...
web browser
Web browser
A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content...
.
It was at this time he began work with Berners-Lee, and later joined Roy Fielding
Roy Fielding
Roy Thomas Fielding is an American computer scientist, one of the principal authors of the HTTP specification, an authority on computer network architecture and co-founder of the Apache HTTP Server project....
et al. Nielsen was invited by Berners-Lee to join the technical staff of the newly formed World Wide Web Consortium (W3C) in 1994. He joined the staff of W3C in March 1995, and continued work on HTTP and other Web protocol topics such as the Line Mode Browser and libwww
Libwww
libwww is a highly-modular client-side web API for Unix and Windows, and is also the name of the reference implementation of this API....
.
Nielsen was one of the principal authors of the Hypertext Transfer Protocol
Hypertext Transfer Protocol
The Hypertext Transfer Protocol is a networking protocol for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web....
(HTTP) specifications, published in 1996.
He then managed the development of a "next generation" called HTTP 1.1, published in 1999.
He left W3C in July 1999.
Nielsen joined the staff of Microsoft
Microsoft
Microsoft Corporation is an American public multinational corporation headquartered in Redmond, Washington, USA that develops, manufactures, licenses, and supports a wide range of products and services predominantly related to computing through its various product divisions...
in August 1999, and began work on SOAP
SOAP
SOAP, originally defined as Simple Object Access Protocol, is a protocol specification for exchanging structured information in the implementation of Web Services in computer networks...
1.1. Previous versions of SOAP had been proposed as an XML-based object serialization protocol, such as XML-RPC
XML-RPC
XML-RPC is a remote procedure call protocol which uses XML to encode its calls and HTTP as a transport mechanism. "XML-RPC" also refers generically to the use of XML for remote procedure call, independently of the specific protocol...
but through the input of Nielsen, Noah Mendelsohn, and others, SOAP 1.1 grew into a lightweight message-oriented protocol for exchanging semi-structured information in a highly decentralized environment.
In 2000, Nielsen joined as an editor the standardizing effort of SOAP within the W3C XML Protocol Working Group which eventually became SOAP 1.2.
In 2003, Nielsen started an incubation project together with George Chrysanthakopoulos focusing on providing a new Web-oriented application model and associated programming model suited for highly concurrent and distributed environments. An output of the incubation is DSSP, a SOAP-based protocol that augments the Web and HTTP model with structured data manipulation and event notifications. By the end of 2005, the incubation moved into productization as Nielsen and Chrysanthakopoulos joined the newly formed Microsoft Robotics Group. In June 2006 the first version of the Microsoft Robotics Studio
Microsoft Robotics Studio
Microsoft Robotics Developer Studio is a Windows-based environment for robot control and simulation. It is aimed at academic, hobbyist, and commercial developers and handles a wide variety of robot hardware....
shipped to the public. Nielsen is currently the Principal Architect of the Windows Communication Foundation team at Microsoft, working on WebSockets
WebSockets
WebSocket is a technology providing for bi-directional, full-duplex communications channels, over a single Transmission Control Protocol socket. It is designed to be implemented in web browsers and web servers, but it can be used by any client or server application...
and some other technologies.
Further reading
- Berners-Lee, Tim and Fischetti, Mark. Weaving the Web. Harper Collins Publishers,1999. ISBN 0-06-251586-1(cloth). ISBN 0-06-251587-X(paper).
- Network performance effects of HTTP/1.1, CSS1, and PNG; Proceedings of the ACM SIGCOMM '97 conference on Applications, technologies, architectures, and protocols for computer communication, ACM Press