| 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. |
|
|
| 7. |
- Alexandersson, Ruben, 1975, et al.
(författare)
-
Aspect-Oriented Implementation of Fault Tolerance: An Assessment of Overhead
- 2010
-
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. - 9783642156502 ; 6351, s. 466-479
-
Konferensbidrag (refereegranskat)abstract
- Software-implemented fault tolerance is an attractive technique for constructing fail-safe and fault-tolerant processing nodes for road vehicles and other cost-sensitive applications. This paper investigates the memoryconsumption and execution time overhead obtained when implementing timeredundant execution and control flow checking in software for an automotive brake controller application. These two mechanisms were implemented at thesource code level using three implementations techniques: aspect-oriented programming (AOP), source code transformation and manual programming in C. The results show that AOP generates much higher overheads than codetransformation for strictly systematic implementations. On the other hand, when application knowledge is used to optimize the implementations, the overhead ofAOP is similar to that of manual programming in C.
|
|
| 8. |
|
|
| 9. |
- Alexandersson, Ruben, 1975, et al.
(författare)
-
Implementing Fault Tolerance Using Aspect Oriented Programming
- 2007
-
Ingår i: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - 1611-3349 .- 0302-9743. - 9783540752936 ; 4746/2007, s. 57-74
-
Konferensbidrag (refereegranskat)abstract
- Aspect oriented programming (AOP) is a promising technique for implementing fault tolerance. Still there exist few actual implementations. One reason is that most present day AOP languages do not offer the level of control needed. This paper addresses the problem by defining a representative set of fault tolerance mechanisms. The set can be used for evaluating the feasibility of languages and for finding needs for improvements. It has been used to evaluate the AspectC++ language, and a number of limitations have been revealed. AspectC++ was then extended in order to address this. It is also demonstrated how reusable fault tolerance mechanisms can be built using aspect oriented C++, and the advantages compared to using standard C++ are discussed.
|
|
| 10. |
- Alexandersson, Ruben, 1975, et al.
(författare)
-
On hardware resource consumption for aspect-oriented implementation of fault tolerance
- 2010
-
Ingår i: EDCC-8 - Proceedings of the 8th European Dependable Computing Conference. - 9780769540078 ; , s. 61-66
-
Konferensbidrag (refereegranskat)abstract
- Software-implemented fault tolerance is a widely used technique for achieving high dependability in costsensitive applications. One approach to implementing fault tolerance in software is to use aspect-oriented programming (AOP). This paper investigates the hardware overhead imposed by software mechanisms for time-redundant execution and control flow checking implemented by using AOP. The impacts on static and dynamic memory consumption as well as execution time are measured. The overheads caused by using AOP were shown to be an issue. However, two optimizations to the weaver that reduce the overhead caused by the AOP language weaver were identified. Using these optimizations the overhead was reduced to acceptable or even beneficial levels compared to using standard C. © 2010 IEEE.
|
|
