Sökning: "Systemteori"

Visar resultat 31 - 35 av 105 avhandlingar innehållade ordet Systemteori.

1. 31. On Enterprise Systems Artifacts: Changes in Information Systems Development and Evaluation

   Författare :Jonas Hedman; Institutet för Ekonomisk forskning; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; information systems development; evaluation; artifact evaluation; artifacts; systemteori; Informatik; Informatics; systems theory; Enterprise Systems; ERP Systems;

   Sammanfattning : Enterprise Systems are one of the most important developments in corporate information systems during the last decade. These integrated information systems are characterized by a number of features which include a very broad scope and functionality, as well as being generic, master data, and business-process orientated. LÄS MER

3. 32. On the Design and Analysis of Stream Ciphers

   Författare :Martin Hell; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; weak feedback polynomials; bit-search generator; self-shrinking generator; Achterbahn; Pomaranch; Grain-128; Grain; stream ciphers; cryptography; cryptanalysis; Informatics; systems theory; Informatik; systemteori;

   Sammanfattning : This thesis presents new cryptanalysis results for several different stream cipher constructions. In addition, it also presents two new stream ciphers, both based on the same design principle. The first attack is a general attack targeting a nonlinear combiner. LÄS MER

4. 33. Participating in Synchronous Online Education

   Författare :Stefan Hrastinski; Institutionen för informatik; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Technological sciences; Samhällsvetenskaper; Social sciences; systemteori; Computer-mediated communication; Online participation; Synchronous communication; Online education; Teknik; E-learning; Distance education; Informatics; Informatik; systems theory;

   Sammanfattning : There is an increasing need for education since the workforce of today is expected to be highly educated and continuously learn. Distance education is a powerful response to meet the growing need for education. Online education, here concisely defined as distance education mediated online, is the most common type of distance education. LÄS MER

5. 34. Förtroende och datorbruk

   Författare :Sissi Ingman; Institutionen för informatik; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; system trust; Trust; order; control; tool; transparency; Informatics; systems theory; Informatik; systemteori;

   Sammanfattning : This is a study of how use of computer artefacts could be understood from the aspect of trust. Meanings of trust are discussed and rather than to understand trust as a possible solution to problems of uncertainty and control, trust is here seen as a fundamental aspect of life, including experiences of knowledge, certainty and control. LÄS MER

7. 35. Iteratively Decodable Convolutional Codes: Analysis and Implementation Aspects

   Författare :Alberto Jimenez Feltström; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; systems theory; Informatics; Intersymbol Interference; BPSK; Product Codes; Braided Codes; Low-Density Parity-Check Codes; Convolutional Codes; Iterative Decoding; Informatik; systemteori; Systems engineering; computer technology; Data- och systemvetenskap;

   Sammanfattning : This thesis addresses the theory and implementation aspects of iteratively decodable codes. Iteratively decodable codes include, in particular, Gallager's regular low-density parity-check (LDPC) codes, Tanner's generalized LDPC (GLDPC) codes, turbo codes due to Berrou et. al. and expander codes. LÄS MER