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Displaying 1-26 out of 26 total
Re-founding software engineering -- SEMAT at the age of three (keynote abstract)
Found in: 2012 27th IEEE/ACM International Conference on Automated Software Engineering (ASE)
By Ivar Jacobson,Ian Spence,Pontus Johnson,Mira Kajko-Mattsson
Issue Date:September 2012
pp. 15-19
Software engineering is gravely hampered by immature practices. Specific problems include: The prevalence of fads more typical of the fashion industry than an engineering discipline; a huge number of methods and method variants, with differences little und...
 
Hybrid Probabilistic Relational Models for System Quality Analysis
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Per Närman, Markus Buschle, Johan König, Pontus Johnson
Issue Date:October 2010
pp. 57-66
The formalism Probabilistic Relational Models (PRM) couples discrete Bayesian Networks with a modeling formalism similar to UML class diagrams and has been used for architecture analysis. PRMs are well-suited to perform architecture analysis with respect t...
 
A Method for Constructing a Company Specific Enterprise Architecture Model Framework
Found in: Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing, ACIS International Conference on
By Adrian Källgren, Johan Ullberg, Pontus Johnson
Issue Date:May 2009
pp. 346-351
Good IT decision making is a highly desirable property that can be furthered by the use of enterprise architecture, an approach to IT management using diagrammatic models. In order to support decision making, the models must contain only relevant informati...
 
Enterprise Architecture Evaluation Using Utility Theory
Found in: 2013 17th IEEE International Enterprise Distributed Object Computing Conference Workshops (EDOCW)
By Magnus Osterlind,Pontus Johnson,Kiran Karnati,Robert Lagerstrom,Margus Valja
Issue Date:September 2013
pp. 347-351
With the increase in the number of quality attributes (e.g. cost, availability, reusability), that are being considered in the process of enterprise architecture analysis, the decision maker needs a systematic way to balance these attributes against each o...
 
Where's the Theory for Software Engineering?
Found in: IEEE Software
By Pontus Johnson,Mathias Ekstedt,Ivar Jacobson
Issue Date:September 2012
pp. 96
Darwin's theory of natural selection, Maxwell's equations, the theory of demand and supply; almost all established academic disciplines place great emphasis on what their core theory is. This is not, however, the case in software engineering. What is the r...
 
Enterprise Architecture Analysis for Data Accuracy Assessments
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Per Närman, Pontus Johnson, Mathias Ekstedt, Moustafa Chenine, Johan König
Issue Date:September 2009
pp. 24-33
Poor data in information systems impede the quality of decision-making in many modern organizations. Manual business process activities and application services are never executed flawlessly which results in steadily deteriorating data accuracy, the furthe...
 
A Method for Choosing Software Assessment Measures Using Bayesian Networks and Diagnosis
Found in: Software Maintenance and Reengineering, European Conference on
By Ulrik Franke, Pontus Johnson, Robert Lagerström, Johan Ullberg, David Höök, Mathias Ekstedt, Johan König
Issue Date:March 2009
pp. 241-246
Creating accurate models of information systems is an important but challenging task. While the scientific aspects of such modeling are generally acknowledged, the monetary aspects of the modeling of software systems are not. The present paper describes a ...
 
A Tool for Enterprise Architecture Analysis of Maintainability
Found in: Software Maintenance and Reengineering, European Conference on
By Mathias Ekstedt, Ulrik Franke, Pontus Johnson, Robert Lagerström, Teodor Sommestad, Johan Ullberg, Markus Buschle
Issue Date:March 2009
pp. 327-328
A tool for Enterprise Architecture analysis using a probabilistic mathematical framework is demonstrated. The Model-View-Controller tool architecture is outlined, before the use of the tool is considered. A sample abstract maintainability model is created,...
 
Using Enterprise Architecture Models for System Quality Analysis
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Per Närman, Marten Schönherr, Pontus Johnson, Mathias Ekstedt, Moustafa Chenine
Issue Date:September 2008
pp. 14-23
Enterprise Architecture is a model-based approach to business-oriented IT management. To promote good IT decision making, an Enterprise Architecture framework needs to explicate what kind of analyses it supports. Since creating Enterprise Architecture mode...
 
Combining Defense Graphs and Enterprise Architecture Models for Security Analysis
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Teodor Sommestad, Mathias Ekstedt, Pontus Johnson
Issue Date:September 2008
pp. 349-355
Security is dependent on a mixture of interrelated concepts such as technical countermeasures, organizational policies, security procedures, and more. To facilitate rational decision making, these concepts need to be combined into an overall judgment on th...
 
A Framework for Service Interoperability Analysis using Enterprise Architecture Models
Found in: Services Computing, IEEE International Conference on
By Johan Ullberg, Robert Lagerström, Pontus Johnson
Issue Date:July 2008
pp. 99-107
Good IT decision making is a highly desirable property that can be furthered by the use of enterprise architecture, an approach to IT management using diagrammatic models. In order to support decision making, the models must be amenable to various kinds of...
 
Using Architectural Models to Predict the Maintainability of Enterprise Systems
Found in: Software Maintenance and Reengineering, European Conference on
By Robert Lagerstrom, Pontus Johnson
Issue Date:April 2008
pp. 248-252
Modern software systems are highly interconnected and have been under constant change for many years. IT decision makers find it difficult to predict and plan change projects due to the complexity of the enterprise systems. Thus, a large proportion of proj...
 
The IT Organization Modeling and Assessment Tool: Correlating IT? Governance Maturity with the Effect of IT
Found in: Hawaii International Conference on System Sciences
By Mårten Simonsson, Pontus Johnson
Issue Date:January 2008
pp. 431
Does good IT governance improve the effect of IT? This paper presents the IT Organization Modeling and Assessment Tool (ITOMAT) which has been created to overcome operationalization and subjectivity weaknesses in the Control Objectives for Information and ...
   
A Tool for Enterprise Architecture Analysis
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Pontus Johnson, Erik Johansson, Teodor Sommestad, Johan Ullberg
Issue Date:October 2007
pp. 142
The discipline of enterprise architecture advocates the use of models to support decision-making on enterprise-wide information system issues. In order to provide such support, enterprise architecture models should be amenable to analyses of various proper...
 
Enterprise Architecture: A Framework Supporting System Quality Analysis
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Per Närman, Pontus Johnson, Lars Nordström
Issue Date:October 2007
pp. 130
Enterprise Architecture is a model-based approach to business-oriented IT management. To promote good IT decision making, an enterprise architecture framework needs to explicate what kind of analyses it supports. Since creating enterprise architecture mode...
 
In Search of a Unified Theory of Software Engineering
Found in: Software Engineering Advances, International Conference on
By Pontus Johnson, Mathias Ekstedt
Issue Date:August 2007
pp. 1
<p>Highly successful scientific disciplines have at least one common denominator; they have developed unified theories that span a large set of phenomena within the discipline. The discipline of software engineering today features a multitude of disp...
 
Extended Influence Diagrams for Enterprise Architecture Analysis
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Pontus Johnson, Robert Lagerstrom, Per Narman, Marten Simonsson
Issue Date:October 2006
pp. 3-12
The discipline of enterprise architecture advocates the use of models to support decision-making on enterprisewide information system issues. In order to provide such support, enterprise architecture models should be amenable to analyses of various propert...
 
Assessment of Enterprise Information Security — The Importance of Information Search Cost
Found in: Hawaii International Conference on System Sciences
By Erik Johansson, Mathias Ekstedt, Pontus Johnson
Issue Date:January 2006
pp. 219a
There are today several methods and standards available for assessment of the level of information security in an enterprise. A problem with these assessment methods is that they neither provide an indication of the amount of effort required to obtain the ...
   
Assessment of Enterprise Information Security - The Importance of Prioritization
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Erik Johansson, Pontus Johnson
Issue Date:September 2005
pp. 207-218
<p>Assessing the level of information security in an enterprise is a serious challenge for many organizations. This paper considers the prioritization of the field of enterprise information security. The paper thus considers how we may know what part...
 
Consistent Enterprise Software System Architecture for the CIO — A Utility-Cost Based Approach
Found in: Hawaii International Conference on System Sciences
By Mathias Ekstedt, Pontus Johnson, Åsa Lindström, Magnus Gammelgård, Erik Johansson, Leonel Plazaola, Enrique Silva, Joakim Liliesköld
Issue Date:January 2004
pp. 80225a
<p>Previously, business operations of most large companies were supported by a number of isolated software systems performing diverse specific tasks, from real-time process control to administrative functions. In order to better achieve business goal...
   
IT Infrastructure Architectures for Electric Utilities ? A Comparative Analysis of Description Techniques
Found in: Hawaii International Conference on System Sciences
By Jonas Andersson, Pontus Johnson
Issue Date:January 2000
pp. 4013
The escalating development of Information Technology enables utilities to reorganize or migrate from their existing disparate software systems towards an integrated Enterprise Software System Infrastructure (ESSI) that embraces the total organization. Inte...
   
Cyber Security Risks Assessment with Bayesian Defense Graphs and Architectural Models
Found in: Hawaii International Conference on System Sciences
By Teodor Sommestad, Mathias Ekstedt, Pontus Johnson
Issue Date:January 2009
pp. 1-10
To facilitate rational decision making regarding cyber security investments, decision makers need to be able to assess expected losses before and after potential investments. This paper presents a model based assessment framework for analyzing the cyber se...
   
Modeling the IT Impact on Organizational Structure
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Pia Gustafsson, David Höök, Ulrik Franke, Pontus Johnson
Issue Date:September 2009
pp. 14-23
The impact IT systems have on organizations is widely debated, both in academia and industry. This paper describes a quantitative framework for analyzing organizational impact from IT systems. The framework consists of an abstract model that is a metamodel...
 
Architectural Integration Styles for Large-Scale Enterprise Software Systems
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Jonas Andersson, Pontus Johnson
Issue Date:September 2001
pp. 0224
Abstract: A predominant problem in the management of large-scale enterprise software systems is application integration. Despite the considerable efforts spent on the development of new standards and technologies for software interoperation, the integratio...
 
Re-founding software engineering – SEMAT at the age of three (keynote abstract)
Found in: Proceedings of the 27th IEEE/ACM International Conference on Automated Software Engineering (ASE 2012)
By Ian Spence, Ivar Jacobson, Mira Kajko-Mattsson, Pontus Johnson
Issue Date:September 2012
pp. 15-19
Software engineering is gravely hampered by immature practices. Specific problems include: The prevalence of fads more typical of the fashion industry than an engineering discipline; a huge number of methods and method variants, with differences little und...
     
A Bayesian network for IT governance performance prediction
Found in: Proceedings of the 10th international conference on Electronic commerce (ICEC '08)
By Marten Simonsson, Pontus Johnson, Robert Lagerstrom
Issue Date:August 2008
pp. 1-30
The goal of IT governance is not only to achieve internal efficiency in an IT organization, but also to support IT's role as a business enabler. The latter is here denoted IT governance performance. IT management cannot control the IT governance performanc...
     
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