Gerhard Chroust
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Gerhard Chroust (born 23 April 1941) is an
Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...
n
systems scientist Systems science, also referred to as systems research or simply systems, is a transdisciplinary field that is concerned with understanding simple and complex systems in nature and society, which leads to the advancements of formal, natural, socia ...
, and Professor Emeritus for
Systems Engineering Systems engineering is an interdisciplinary field of engineering and engineering management that focuses on how to design, integrate, and manage complex systems over their Enterprise life cycle, life cycles. At its core, systems engineering uti ...
and
Automation Automation describes a wide range of technologies that reduce human intervention in processes, mainly by predetermining decision criteria, subprocess relationships, and related actions, as well as embodying those predeterminations in machine ...
at the Institute of System Sciences at the
Johannes Kepler University Linz The Johannes Kepler University Linz (German: ''Johannes Kepler Universität Linz'', short: ''JKU'') is a public university in Austria. It is located in Linz, the capital of Upper Austria. It offers bachelor's, master's, diploma and doctoral degre ...
,
Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...
. Chroust is an authority in the fields of formal
programming languages A programming language is a system of notation for writing computer programs. Programming languages are described in terms of their syntax (form) and semantics (meaning), usually defined by a formal language. Languages usually provide features ...
and interdisciplinary
information management Information management (IM) is the appropriate and optimized capture, storage, retrieval, and use of information. It may be personal information management or organizational. Information management for organizations concerns a cycle of organiz ...
.


Biography

Gerhard Chroust was born in 1941 in
Vienna Vienna ( ; ; ) is the capital city, capital, List of largest cities in Austria, most populous city, and one of Federal states of Austria, nine federal states of Austria. It is Austria's primate city, with just over two million inhabitants. ...
,
Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...
. He began studying
Communications-electronics In telecommunications, communications-electronics (C-E) is the specialized field concerned with the use of electronic devices and systems for the Data acquisition, acquisition or acceptance, processing, Computer data storage, storage, display, a ...
in 1959 and received a M.A. from
TU Wien TU Wien () is a public research university in Vienna, Austria. The university's teaching and research are focused on engineering, computer science, and natural sciences. It currently has about 28,100 students (29% women), eight faculties, and ...
in 1964, a M.A. from the
University of Pennsylvania The University of Pennsylvania (Penn or UPenn) is a Private university, private Ivy League research university in Philadelphia, Pennsylvania, United States. One of nine colonial colleges, it was chartered in 1755 through the efforts of f ...
in 1965, and a PhD from TU Wien in 1974. From 1966 to 1991 Chroust worked at the
IBM Laboratory Vienna IBM Laboratory Vienna was an IBM research laboratory based in Vienna, Austria. The laboratory started with a group led by Heinz Zemanek that moved from the Technische Hochschule (now the Technical University of Vienna). Initially, the group worked ...
. He started working at the Johannes Kepler University Linz and TU Wien in 1975 as lecturer for
Microprogramming In processor design, microcode serves as an intermediary layer situated between the central processing unit (CPU) hardware and the programmer-visible instruction set architecture of a computer. It consists of a set of hardware-level instructions ...
. In 1980 he became Assistant Professor in Computer Science, and lectured "Dataflow Mechanisms", "Dataflow Mechanisms" and later "Software Development Process" at the Johannes Kepler University Linz, at the
University of Klagenfurt The University of Klagenfurt ( or ''Alpen-Adria-Universität Klagenfurt'', AAU) is a federal Austrian research university and the largest research and higher education institution in the States of Austria, state of Carinthia. It has its campus in ...
and at TU Wien. From 1992 until 2007 he was Professor for 'Systems Engineering and Automation' at the Johannes Kepler University Linz and Head of the Department (in 2004 transferred into an Institute) of Systems Engineering and Automation from 1992 until 2007. Chroust is Editor-in-Chief of the IFSR Newsletter a.o. Furthermore, he is Chairperson of the Editorial Board of the Book Series of the Austrian Computer Society (OCG), Editorial Board Member of several journals: The Journal of ''Microprocessors and Microsystems'' from 1976 until 1985, the ''IBM Programming Series'' from 1978 until 1990, the ''Computer Standards and Interfaces'' from 1992 until 2005, and ''
Systems Research and Behavioral Science A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its environment, is described by its boundaries, structure and purpose and is exp ...
'' since 1994. In 1997 he was also on the Academic board of the ''
International Encyclopedia of Systems and Cybernetics The book ''International Encyclopedia of Systems and Cybernetics'' is an authoritative encyclopedia for systems theory, cybernetics, the complex systems science, which covers both theories and applications in areas as engineering, biology, medicin ...
'', edited by Charles François. Further Chroust is organizationally active is as Secretary/Treasurer at the
International Federation for Systems Research International is an adjective (also used as a noun) meaning "between nations". International may also refer to: Music Albums * ''International'' (Kevin Michael album), 2011 * ''International'' (New Order album), 2002 * ''International'' (The T ...
, Vice-President of the Austrian Society of Cybernetic Studies and Advisor to Austrian Standards Committee.


Family

Gerhard Chroust has been married to Janie Chroust, née Weps, since 1968. They have two sons Martin (* 1971) and Stefan (* 1974), and five grandchildren Adrian (* 2001), Niklas (* 2004), Viktoria (* 2005), Rebecca (* 2007) and Ella (* 2008).


Work

The research interests of Gerhard Chroust are in the fields of
Software Engineering Software engineering is a branch of both computer science and engineering focused on designing, developing, testing, and maintaining Application software, software applications. It involves applying engineering design process, engineering principl ...
(Representation and Enactment of Software Process Models, Quality and Improvement of Development Processes),
Systems Science Systems science, also referred to as systems research or simply systems, is a transdisciplinary field that is concerned with understanding simple and complex systems in nature and society, which leads to the advancements of formal, natural, socia ...
and Systemic Aspects of
Engineering Engineering is the practice of using natural science, mathematics, and the engineering design process to Problem solving#Engineering, solve problems within technology, increase efficiency and productivity, and improve Systems engineering, s ...
,
Emergence In philosophy, systems theory, science, and art, emergence occurs when a complex entity has properties or behaviors that its parts do not have on their own, and emerge only when they interact in a wider whole. Emergence plays a central rol ...
, History of
Computers A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations ('' computation''). Modern digital electronic computers can perform generic sets of operations known as ''programs'', ...
and
Information Technology Information technology (IT) is a set of related fields within information and communications technology (ICT), that encompass computer systems, software, programming languages, data processing, data and information processing, and storage. Inf ...
, and Human Aspects of
Software Development Software development is the process of designing and Implementation, implementing a software solution to Computer user satisfaction, satisfy a User (computing), user. The process is more encompassing than Computer programming, programming, wri ...
.


Cybernetics and Programming Languages

In 1964 Chroust wrote his Masters Thesis "Kybernetisches Modell: Muehlespiel Masters" about
cybernetics Cybernetics is the transdisciplinary study of circular causal processes such as feedback and recursion, where the effects of a system's actions (its outputs) return as inputs to that system, influencing subsequent action. It is concerned with ...
and continued to investigate cybernetic machines for another four years. From the study of Theorem Proving 1965-66 Chroust continued to study formal definition of
Programming Languages A programming language is a system of notation for writing computer programs. Programming languages are described in terms of their syntax (form) and semantics (meaning), usually defined by a formal language. Languages usually provide features ...
, whereby he developed the "
Vienna Definition Language The Vienna Development Method (VDM) is one of the longest-established formal methods for the development of computer-based systems. Originating in work done at the IBM Laboratory Vienna in the 1970s, it has grown to include a group of techniques ...
". He started studying
compiler theory In computing, a compiler is a computer program that Translator (computing), translates computer code written in one programming language (the ''source'' language) into another language (the ''target'' language). The name "compiler" is primaril ...
and the evaluation of
arithmetic expression In mathematics, an expression is a written arrangement of symbols following the context-dependent, syntactic conventions of mathematical notation. Symbols can denote numbers, variables, operations, and functions. Other symbols include punctu ...
s from 1967 until 1975. In the 1970s Chroust continued to study parallelism and
simulation A simulation is an imitative representation of a process or system that could exist in the real world. In this broad sense, simulation can often be used interchangeably with model. Sometimes a clear distinction between the two terms is made, in ...
from 1969 until 1972,
microprogramming In processor design, microcode serves as an intermediary layer situated between the central processing unit (CPU) hardware and the programmer-visible instruction set architecture of a computer. It consists of a set of hardware-level instructions ...
from 1975 until 1990 and
compiler In computing, a compiler is a computer program that Translator (computing), translates computer code written in one programming language (the ''source'' language) into another language (the ''target'' language). The name "compiler" is primaril ...
building from 1976 until 1982.


Software engineering and information technology engineering

In the 1980s the scope of Chroust's research turned towards
software engineering Software engineering is a branch of both computer science and engineering focused on designing, developing, testing, and maintaining Application software, software applications. It involves applying engineering design process, engineering principl ...
and its environment, and towards
information technology engineering Data engineering is a software engineering approach to the building of data systems, to enable the collection and usage of data. This data is usually used to enable subsequent data analytics, analysis and data science, which often involves machin ...
in the 1990s. He had a special interest in
software inspection Inspection in software engineering, refers to peer review of any work product by trained individuals who look for defects using a well defined process. An inspection might also be referred to as a Fagan inspection after Michael Fagan, the creator ...
s and
Workflow Workflow is a generic term for orchestrated and repeatable patterns of activity, enabled by the systematic organization of resources into processes that transform materials, provide services, or process information. It can be depicted as a seque ...
management.


Publications

Chroust has written, co-authored and edited a dozen books and over 400 articles, papers and other publications.Gerhard Chroust
Full list of publications. Retrieved 3 June 2008. A selection: * 1980. ''Firmware, microprogramming, and restructurable hardware : proceedings of the IFIP Working Conference on Firmware, Microprogramming, and Restructurable Hardware, Linz, Austria, April 28-May 1, 1980.'' Edited with Jörg R. Mühlbacher. * 1985. ''Formal models in programming : proceedings of the IFIP TC2 Working Conference on the Role of Abstract Models in Information Processing, Vienna, Austria, 30 January - 1 February 1985''. Edited with E.J. Neuhold. * 1989. ''Mikroprogrammierung und Rechnerentwurf''. Oldenbourg Verlag. * 1992. ''Modelle der Software-Entwicklung - Aufbau und Interpretation von Vorgehensmodellen''. Oldenbourg Verlag Wien-München. * 1994. ''Workflow management : challenges, paradigms, and products : CON '94''. Edited with A. Benczúr. * 1994. ''Interdisciplinary Information Management Talks 94''. Edited with P. Doucek. * 1995. ''Umfrage Workflow - Eine Momentaufnahme über die Verbreitung, Einsatz und Meinungen über Workflow in den deutschsprachigen Ländern.'' With J. Bergsmann. Oldenbourg Wien-München. * 1995. ''Die Geschichte der Datenverarbeitung - Bibliographie zur Geschichtswand''. With H. Zemanek. Oldenbourg Wien/München * 1998. ''Adolf Adam - 80 Jahre, eine Anekdotensammlung'', ÖSGK, Reports of the Austrian Society for Cybernetic Studies, Vienna. * 2005. ''IFSR 2005 - The New Roles of Systems Sciences for a Knowledge-based Society, Kobe 2005''. Edited with
Jifa Gu Gu Jifa ( zh, s=顾基发; born 1930s) is a Chinese systems scientist, and Professor of Operations Research and Systems Engineering at the Institute of Systems Science, Academy of Mathematics and System Sciences, Chinese Academy of Sciences. He i ...
. Jaist Press, Komatsu, Japan.


References


External links


Homepage Gerhard Chroust
at www.sea.uni-linz.ac.at.

ICSCI, 2008.
Article
''25 Years of the IFSR: A Milestone in the Systems Sciences'', by Gerhard Chroust.
"Emeritus am Institut für Systems Engineering and Automation an der JKU Linz – ein Portrait"
by Helmut Malleck. pp 4–5. (in German). {{DEFAULTSORT:Chroust, Gerhard 1941 births University of Pennsylvania alumni Systems scientists Living people Scientists from Vienna TU Wien alumni Academic staff of TU Wien Academic staff of Johannes Kepler University Linz IBM employees