| 1. |
- Magazinovic, Ana, 1979, et al.
(författare)
-
Software Cost Estimation Inhibitors - A Case Study
- 2008
-
Ingår i: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - Berlin, Heidelberg : Springer Berlin Heidelberg. - 1611-3349 .- 0302-9743. - 3540695648 ; 5089 LNCS, s. 61-74
-
Konferensbidrag (refereegranskat)abstract
- Abstract. Software cost estimation errors are increasing in the automotive industry along with the number of software components in modern vehicles. As the software cost estimation is an important and problematic part of project planning there is a need of process improvement to decrease estimation errors. However, to improve the process of cost estimation there is a need to explore whether the perceived cost estimation problem is an estimation problem or if it is a management problem. This paper focuses on inhibitors in the process of software cost estimation in system development projects and reports the results of a study carried out at a Swedish automotive company in order to gain an understanding for the factors that affect the cost estimation process.
|
|
| 2. |
- Magazinovic, Ana, 1979, et al.
(författare)
-
Software cost estimation inhibitors—a case study in automotive context
- 2010
-
Ingår i: Journal of Software Maintenance and Evolution. - : Wiley. - 1532-060X .- 1532-0618. ; 22:5, s. 407-427
-
Tidskriftsartikel (refereegranskat)abstract
- As cost estimation is an important yet problematic part of project planning there is a need of process improvement to decrease the estimation errors. This paper has two purposes. Based on a qualitative case study conducted at a Swedish automotive company it describes the process of cost estimation in a real-life setting focusing on inhibitors to accurate cost estimates. Second, the results of this study are compared with four other studies with a similar purpose of concluding that a company-specific investigation of cost estimation inhibitors might give more actionable input to the activity of cost estimation process improvement than a more general investigation.
|
|
| 3. |
|
|
| 4. |
- Pernstål, Joakim, 1964, et al.
(författare)
-
An Investigation of Manufacturing Challenges in Automotive Software Development from a Lean Perspective
- 2009
-
Ingår i: Proceedings of the 19th International Conference on Flexible Automation and Intelligent Manufacturing (FAIM 2009). - 9780956230331
-
Konferensbidrag (refereegranskat)abstract
- The automotive industry is facing a tremendous growth in software and system engineering in productdevelopment. This is pressing the automakers to build up software competencies and elaborate efficientprocesses for product development and production. The involvement of manufacturing engineering in productdevelopment has consequently become imperative since the increase in software-based systems implies a greaternumber of product variants and a higher degree of complexity to be managed in the manufacturing processes.This paper presents an investigation of the interaction between the functions of product development andmanufacturing in automotive software development from a lean production perspective. The primarily objectiveof the study presented in this paper is to increase the understanding of the area by using complementaryperspectives found in related literature and the empirical results of a previous explorative multiple case studyundertaken at two Swedish automotive companies. Since automakers aim to achieve product differentiation in abroad market and cost leadership by adopting lean production emerged issues were primarily analyzed from alean perspective. Challenging issues were found and the analysis indicated that it is useful to adopt a leanapproach within the realm of the investigated area of interest since it seems to constitute an appropriatefoundation for remedial measures.
|
|
| 5. |
|
|
| 6. |
- Magazinovic, Ana, 1979, et al.
(författare)
-
Any Other Cost Estimation Inhibitors?
- 2008
-
Ingår i: Empirical Software Engineering and Measurement 2008 (ESEM). - 9781595939715 ; , s. 233-242
-
Konferensbidrag (refereegranskat)
|
|
| 7. |
- Pernstål, Joakim, 1964, et al.
(författare)
-
A Study Investigating Challenges in The Interface Between Product Development and Manufacturing in The Development of Software-Intensive Automotive Systems
- 2012
-
Ingår i: International Journal of Software Engineering and Knowledge Engineering. - : WORLD SCIENTIFIC PUBL CO PTE LTD. - 0218-1940. ; 22:7, s. 965-1004
-
Tidskriftsartikel (refereegranskat)abstract
- The automotive industry is facing a tremendous growth in the engineering of software-intensivesystems, giving rise to various challenges. To prevent problems related to the ¯t of newsoftware technologies in vehicles and the manufacturing processes, a well functioning interactionbetween the functions for product development and manufacturing is crucial. This iscomplicated by the fact that the changeable nature of software development causes unprecedentedneeds for collaboration and coordination between these two functions. This paperreports on a process assessment that focuses on the interface between the functions forproduct development and manufacturing in the development and design of software-intensiveautomotive systems. The main purpose of the study was to identify the key issues for improvementin the area assessed. The assessment was performed at two Swedish automotivecompanies where data were collected from documents and in interviews with practitioners.Nine key improvement issues were established ranging from challenges in requirements engineeringto the need for knowledge transfer between manufacturing and product development.In addition, to increase the understandability of the results and map possible avenues for solution and future research, the paper provides an extensive analysis of each improvement issue in relation to the state-of-the-art.
|
|
| 8. |
- Pernstål, Joakim, 1964
(författare)
-
On Interaction between Manufacturing and Development Organizations in Automotive Software Engineering
- 2008
-
Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- As most future automotive innovations will be realized with software, the automotive industry is facing a transition from mechanical to software engineering. This evolution is pressing the automotive industry to elaborate appropriate processes for the development ofsoftware based systems.The involvement of manufacturing engineering in development processes has consequently become imperative since the increase in software based systems implies agreater number of product variants and a higher degree of complexity to be managed in the manufacturing processes.This thesis presents a study whose overall purpose was to gain a better understanding of the interaction between the organizations for product development and manufacturing,specifically focusing on the development of software based systems in the automotive industry. The content of this work is based on empirical research, a review of pertinentliterature and an analysis of the empirical results and related literature. To obtain a better understanding of the area of interest from the point of view of practitioners, empirical field studies were undertaken at two Swedish automotive companies using a case study strategy with an explorative purpose. The objective of the literature review was to enhance the understanding of the phenomena investigated by using complementary perspectives found in related literature. Finally, links between the results of the empirical research and appropriate concepts and theories were established and analyzed, which have resulted in recommendations.The empirical field studies resulted in a number of challenging findings that set the outlinefor future in-depth research in the area of interest and may serve as input for improvements of associated activities in the studied organizations. Furthermore, amajority of the findings were supported by data sources from both of the studied cases, which indicates a possibility to generalize the results to the automotive domain. Finally, the methodology used can be useful to other organizations that are interested in foundingtheir development of work practice on empirically observed findings.The literature review pointed out that a common view among researchers is that the automotive industry aims to simultaneously achieve product differentiation in a broadmarket and cost leadership by adopting a lean approach to production and product development. The analyses indicated that it was possible to establish linkages betweenproblems that were identified and lean principles and practices, thus leading to a framework composed of feasible recommendations for the deployment of improvements. Consequently, an overall conclusion in this thesis is that it is useful to adopt a lean approach in the area of interest since it seems to constitute an appropriate foundation for remedial measure
|
|
| 9. |
- Pernstål, Joakim, 1964, et al.
(författare)
-
The lean gap: A review of lean approaches to large-scale software systems development
- 2013
-
Ingår i: Journal of Systems and Software. - : Elsevier BV. - 0164-1212. ; 86:11, s. 2797-2821
-
Tidskriftsartikel (refereegranskat)abstract
- Lean approaches to product development (LPD) have had a strong influence on many industries and in recent years there have been many proponents for lean in software development as it can support the increasing industry need of scaling agile software development. With it's roots in industrial manufacturing and, later, industrial product development, it would seem natural that LPD would adapt well to large-scale development projects of increasingly software-intensive products, such as in the automotive industry. However, it is not clear what kind of experience and results have been reported on the actual use of lean principles and practices in software development for such large-scale industrial contexts. This was the motivation for this study as the context was an ongoing industry process improvement project at Volvo Car Corporation and Volvo Truck Corporation. The objectives of this study are to identify and classify state of the art in large-scale software development influenced by LPD approaches and use this established knowledge to support industrial partners in decisions on a software process improvement (SPI) project, and to reveal research gaps and proposed extensions to LPD in relation to its well-known principles and practices. For locating relevant state of the art we conducted a systematic mapping study, and the industrial applicability and relevance of results and said extensions to LPD were further analyzed in the context of an actual, industrial case. A total of 10,230 papers were found in database searches, of which 38 papers were found relevant. Of these, only 42 percent clearly addressed large-scale development. Furthermore, a majority of papers (76 percent) were non-empirical and many lacked information about study design, context and/or limitations. Most of the identified results focused on eliminating waste and creating flow in the software development process, but there was a lack of results for other LPD principles and practices. Overall, it can be concluded that research in the much hyped field of lean software development is in its nascent state when it comes to large scale development. There is very little support available for practitioners who want to apply lean approaches for improving large-scale software development, especially when it comes to inter-departmental interactions during development. This paper explicitly maps the area, qualifies available research, and identifies gaps, as well as suggests extensions to lean principles relevant for large scale development of software intensive systems. (C) 2013 Elsevier Inc. All rights reserved.
|
|
| 10. |
- Pernstål, Joakim, 1964
(författare)
-
Towards Managing the Interaction between Manufacturing and Development Organizations in Automotive Software Development
- 2013
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The dramatic increase and importance of software in automotive systems has created many challenges not only in the development organization, but also in the manufacturingorganization. This thesis focuses on the inter-departmental interaction between these twoorganizations in large-scale development of software-intensive automotive systems. Theoverall goal of this thesis is to identify the most prevalent challenges in this area, and develop and evaluate possible scalable, efficient and effective solutions addressing saidchallenges. The thesis work was conducted at two Swedish automotive companies using empirical research methods.An important contribution of this thesis are the assessment and improvement analysis and planning methods developed in order to meet industrial needs to effectively and systematically conduct process improvements in large-scale software development, while focusing on inter-departmental interaction. This included the tailoring of previously developed lightweight methods, and developing and applying novel approaches for root cause analysis and modeling and analysis of dysfunctional organizational communication patterns. Lessons learned and feedback from practitioners showed that the methods were helpful and useful to enhance the performance of the process improvement initiatives.Through the application of the assessment methods this thesis identified major challengesrelated to requirements engineering (RE). The substantial growth of automotive software has led to an increased need for coordination and communication of requirements andassociated possible solutions across the manufacturing and development organizations. The main reasons for these challenges are lack of bidirectional communication and theinformation being communicated is insufficiently specified.The large amount of specifications also demands effective and efficient ways to enable and improve coordination and communication. To this end a lightweight RE frameworkwas developed, called BRASS. It combines goal oriented requirements communication with lean based concurrent engineering, and promotes communication over achievingperfection in specifications. The applicability of BRASS was evaluated through a industrial validation, which showed that BRASS can be tailored and applied in industryand the practitioners perceived the use of BRASS as useful and effective.
|
|
