| 2221. |
- Johnsson, Andreas, et al.
(författare)
-
On the Analysis of Packet-Train Probing Schemes
- 2004
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- With a better understanding of how probe packets and cross-traffic packets interact with each other, more accurate measurement methods based on active probing can be developed. Several existing measurement methods rely on packet-train probing schemes. In this article, we study and describe the interactions between probe packets and cross-traffic packets. When one packet within a packet train is delayed, the dispersion (i.e. packet separation) of at least two (and possibly more) probe packets will change. Furthermore, the dispersions are not independent, which may bias calculations based on statistical operations. Many methods use dispersion averages, such as the mean, in the calculation of bandwidth estimates and predictions. We describe cross traffic effects on packet trains. The interaction results in mirror, chain and quantifi- cation patterns. Experiments have been performed in a testbed to explore these patterns. In histograms of delay variations for adjacent probe packets, these patterns are manifested as different identifiable signatures. Finally, we also discuss the effect of these patterns on the mean and median operations.
|
|
| 2222. |
- Johnsson, Mikael, Dr, 1972-, et al.
(författare)
-
Disrupting the Research Process through Artificial Intelligence: Towards a Research Agenda
- 2022
-
Ingår i: Artificial Intelligence and Innovation Management. - : World Scientific. - 9781800611320 ; , s. 161-183
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- This chapter explores how Artificial Intelligence (AI) will potentially disrupt how Innovation Management (IM) research will be conducted. In the recent decades, the research process has remained virtually unchanged, i.e., a structured, stepwise process. Recently, AI has shown new opportunities that affect this process. AI applications have been developed supporting researchers for specific tasks to ease their work, for example, database searching, transcribing and data management. For example, an autonomous literature review (i.e., database search, selection, analyzing, concluding, and writing) has been conducted by AI, vastly exceeding what human research could achieve in the same time frame, which paves the way for interesting reflections on how AI applications affect research from here on going forward. As we have explored AI techniques and AI applications and discussed their potential for conducting research, three themes emerged regarding how future research might be conducted: simplification thorough the use of computational power, augmentation of a researcher’s capabilities, and replacement by automation: Three critical questions are identified: (1) The future use of AI applications in research; (2) Exploring the trust in AI — The black box dilemma, and; (3) Benefits and limitations of AI applications. These topics are discussed, paving a way towards a research agenda.
|
|
| 2223. |
- Johnsson, Mikael, Dr, 1972-
(författare)
-
How to create high-performing innovation teams
- 2022
-
Bok (övrigt vetenskapligt/konstnärligt)abstract
- Effective teamwork is essential if innovation projects are to succeed. How to create high-performing innovation teams provides practical guidance and advice on creating high-performing teams regardless of type or size of company, organization, or public institution. It offers the reader pivotal tools and insights to use in practice.Both the theory and practice for creating high-performing innovation teams are discussed and new tools and insights are provided for managers, consultants, and academics. It answers the call for rapid innovation to respond to the increasingly changing market and to shorter product life cycles.How to create high-performing innovation teams addresses specifically the factors that enable innovation work from the perspective of the organization, the innovation team, and its members. In addition to co-located innovation teams, the book also discusses the differences among global organizations and what to consider in the creation of global high-performing innovation teams.
|
|
| 2224. |
- Johnsson, Mikael, 1972-
(författare)
-
Innovation Enablers and Their Importance for Innovation Teams
- 2016
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The aim of this research is to develop an understanding of factors that enable innovation teams to conduct agile innovation work in an industrial context. The background and reason for this research are not only that innovation is necessary for companies that want to stay in business, but also that these companies need to increase the speed of their innovation work to stay competitive. Research has demonstrated that cross-functional (X-functional) innovation teams are fast and agile, and are therefore assumed to be suitable for these activities. Still, there is much knowledge to be gained.Prior research has identified factors that are seen as important from an organizational, team, and individual perspective to enable teams to work with potentially innovative outcomes. However, in cases where teams have been created with the purpose of conducting innovation work, i.e. innovation teams, problems related to e.g. performance and learning have occurred, and the innovation work has stopped shortly after conducted research projects due to the high level of complexity.The research question (RQ) that this thesis explores is the following: “Which innovation enablers are important for innovation teams when conducting agile innovation work in an industrial context?” Based on the RQ, two sub-questions are formulated and operationalized to answer the RQ.Qualitative data have been collected from five innovation teams in two phases. Two innovation teams in two small- and medium-sized enterprises (SMEs) were studied in the first phase to clarify the situation for innovation teams before innovation work is begun. In the second phase, which built on the first one, three innovation teams in a large industrial company were studied as they conducted three separate innovation projects.This research revealed five main findings: first, knowledge about important innovation enablers (Enablers) revealed from a literature study; second, the Innovation Team Model (ITM), demonstrating innovation teams before innovation work is begun in relation to the individuals and organization in a holistic way; third, the innovation team creation process (CIT-process), a stepwise process in how to create an innovation team; fourth, the innovation facilitator, who supports and facilitates the innovation team throughout the CIT-process and the innovation projects; and fifth, the Extended Innovation Process (EIP), an extension of the traditional innovation process by a pre-phase, i.e. a Preparation-phase, to gather and prepare the innovation teams for forthcoming work. The findings regarding the importance of the CIT-process, the EIP, and the innovation facilitator were unexpected.The findings formed the Innovation Team Framework (ITF), which represents all of the findings in relation to each other. The EIP is used as the basis for which the other innovation enablers are provided to the innovation teams through an innovation facilitator’s competence throughout the innovation project. The ITF is multidimensional: it could serve as a tool to describe both the simplicity and the complexity when creating an innovation team and forthcoming work and activities.All separate findings within this research contribute to prior research in individual ways, however, the ITF is the main scientific contribution of this study to Innovation management.Practitioners can use the ITF as a complement to already established methodologies for product development or similar; however one should be aware of the limited nature of the data set that served as the basis for analysis and development of the ITF.Further studies regarding the ITF and its detailed models and processes are suggested.
|
|
| 2225. |
- Johnsson, Mikael, 1972-
(författare)
-
Innovation groups : Before innovation work is begun
- 2013
-
Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This research project was begun during the financial crisis of 2009 with the objective of increasing the competiveness of SMEs’ (Small and Medium sized Enterprises) by developing their innovation-management capabilities. The research presented in this licentiate thesis (thesis) is a part of the project in which newly-formed innovation groups at two SMEs in Eskilstuna, Sweden have been studied before they began innovation work.Prior research has indicated a need to observe processes within on-going innovation projects. My overall hypothesis that reaches beyond this thesis, is that an innovation group that improves its innovation-related knowledge, reduces knowledge gaps and increases innovation-related awareness, generates positive additional values such as motivation or enthusiasm above the results such as patents or project costs that are traditional measurements within innovation projects.The first study in the iterative research process focused on the innovation-related knowledge of newly-formed innovation groups. The results led to further immersed studies, in total five case studies, in which 21 respondents participated. A theoretical framework consisting of theories from Knowledge management and System theory was used to analyze the results and the research question of this licentiate thesis emerged as: “What would a model that describes a newly-formed innovation group’s innovation-related knowledge, knowledge gaps, information flow and awareness look like?” Four sub-questions, one per each aspect of the research question, have been used to analyze prior research, theories and the conducted case studies.A model, Innovation Group Model (IGM), was created according to the research question and goal for this thesis. A one-sentence-explanation could be: “The organization, the innovation group and the individuals must have the opportunity to be motivated to learn innovation management in theory and practice to achieve innovation-readiness and awareness to detect and utilize innovation-related information available within the internal and external information flow.”This thesis contributes to the research area of Innovation and design with knowledge concerning newly-formed innovation groups. Three practical applications of the research results are suggested; (1) IGM can be used in organizations to understand the complex situation when an innovation group is created. (2) IGM can be used when planning for physical or virtual environments in which an innovation group consisting of professionals and customers is intended to develop or generate ideas. (3) IGM can be used when developing innovation-related audits intended to provide a deeper understanding of a respondent’s knowledge.On the basis of the results from this licentiate thesis, I suggest further research according to the overall hypothesis. With IGM as a starting point, one could study the progress of innovation groups and where necessary, provide support in specific areas.
|
|
| 2226. |
- Johnsson, Stefan
(författare)
-
Performance and performance measurements in complex product development
- 2008
-
Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- In today’s competitive environment, in which competition increases and the pace of technological change accelerates, the need for deploying product development investments more efficiently and effectively is stronger than ever. The ability to create streams of new successful products to the market is vital for every product delivering company’s survival. Performance measurements are important in order to evaluate the current state of operation of the product development and decide on actions to improve its’ performance. However, in contrast to the concept of productivity in the production process there are no commonly adopted methods for measuring performance within product development. The methodology used in this research is explorative multiple case studies at five companies developing complex products. Complex products in this research involve mechanics, electronics, and software. Moreover, complex products are often long living and most development work is evolutionary in character. An extensive interview study among senior managers and decision makers has been conducted to get a broad and systematic understanding of what performance is and what to measure. The main results developed from this research are two conceptual tools. The first one, the Performance Measurement Evaluation Matrix (PMEX) can be used to evaluate the performance measurement system used at a company. The PMEX makes it possible for managers to get a more holistic view and discuss what the performance measurement system is measuring, and what it is not measuring, in order to decide on what to measure. The second tool, the Product Development Organizational Performance Model (PDOPM) can be used to conceptually analyze performance in the product development process from a holistic system perspective. This is achieved by making efficiency, effectiveness, and uncertainty explicit and by showing how they relate at a strategic, project, and product implementation level. The PMEX and the PDOPM can be used by managers in order to increase the understanding of what performance is and to be able to decide on actions in order to improve the performance of the product development process.
|
|
| 2227. |
- Jongeling, Robbert
(författare)
-
Advancing Continuous Model-Based Development in Industry
- 2020
-
Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- For the development of complex software systems, two prominent paradigms have become popular in the industry: model-based development and agile software development. Model-based development holds the promise of improving the productivity of software development through abstraction, by focusing on the problem domain and capturing it in models. Agile methods are sometimes seen as conflicting with model-based development due to their favored short development cycles as opposed to the apparent longer development phases in model-based development. In this licentiate thesis, we explore how development can benefit from combining the two practices successfully into continuous model-based development. We present four papers studying this topic in the industrial development of complex embedded systems. The first two papers present investigations of the current state-of-practice and specific challenges of combining the agile practice of continuous integration and model-based development. In the third and fourth paper, we focus on one of those challenges: model synchronization, i.e. the management of consistency between disparate development artifacts describing the same system. We propose a lightweight approach that notifies developers of introductions of inconsistency between different models. Lastly, we consider a second dimension of the management of different development artifacts: variability. We provide support for alleviating manual tasks in maintaining consistency across variants of models in a product line created to describe system variants.
|
|
| 2228. |
- Jongeling, Robbert
(författare)
-
Lightweight consistency checking for advancing continuous model-based development in industry
- 2022
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- For the development of modern software-intensive systems, a large number of development artifacts are created and maintained to design and implement their intended structure and behavior. In this thesis, we consider continuous model-based development settings in which models and other development artifacts are developed incrementally, in short development cycles. Inconsistencies between these development artifacts occur continuously throughout the system's development and maintenance, due to the incremental nature of the development of these artifacts. However, when not known and never resolved, such inconsistencies may ultimately cause failures in developed systems. Therefore, consistency checking across development artifacts is often desirable.Consistency checking approaches face challenges such as adoption in existing engineering settings, the potential informality and incompleteness of models and other development artifacts, as well as the need for shorter development cycles. We show a tight coupling between introducing short development cycles and the need for increased support for consistency checking across models and other development artifacts. From a surveyed set of industrial settings, we identify the need for lightweight consistency-checking approaches.Four aspects that make a consistency checking approach lightweight are formulated on the basis of the surveyed industrial settings. We then study specific challenges to developing consistency checks in four concrete industrial settings. We summarize our experiences in these settings in reference schemas showing the steps of creation and adoption of lightweight consistency checks from various starting points. In summary, this thesis presents contributions to lightweight consistency checking in industrial settings and ultimately aims to facilitate the adoption of continuous model-based development.
|
|
| 2229. |
|
|
| 2230. |
|
|
