Swedish Institute of Computer Science Publications Database
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Fuzzy Cognitive Maps as Decision Support Tools for Investigating Critical Agile Adoption Factors
No full textA lot of discussion on how to efficiently develop software by using agile methods in enterprises and what kind of implications enterprises face on their path towards enterprise agility exists in nowadays. This paper describes how Fuzzy Cognitive Maps (FCM) can be used as Computational Intelligence (CI) tools for Decision Support (DS) in reducing the risks of the implications in this adaptation or transformation process. Particularly, FCM are used in understanding the effect of a set of critical Agile Adoption Factors (AAF) proposed in literature in the success of adopting agile. A set of preliminary experiments have been conducted to show that AAF can be evaluated with the use of FCM and their effect on adoption success is validated in three specific contexts. The scenarios investigated show that a critical implication is corporate bureaucracy. Also, results indicate that some enablers are the project teams’ personal traits, such as collaborative attitude and readiness to change, as well as, the customers’ level of commitment. The proposed FCM model provides an insight on the usefulness of the method for assessing agile transformation success
Understanding Computer Role-Playing Games: A Genre Analysis Based on Gameplay Features in Combat Systems
Get PDFA game genre as diverse as that of computer role-playing games is difficult to overview. This poses challenges or both developers and researchers to position their work clearly within the genre. We present an overview of the genre based on clustering games with similar gameplay features. This allows a tracing of relations between subgenres through their gameplay, and connecting this to concrete game examples. The analysis was done through using gameplay design patterns to identify gameplay features and focused upon the combat systems in the games. The resulting cluster structure makes use of 321 patterns to create 37 different subgenre classifications based solely on gameplay features. In addition to the clusters, we identify four categories of patterns that help designers and researchers understand the combat systems in computer role-playing games
On The Foundations of Digital Games
Get PDFComputers have lead to a revolution in the games we play, and, following this, an interest for computer-based games has been sparked in research communities. However, this easily leads to the perception of a one-way direction of influence between that the field of game research and computer science. This historical investigation points towards a deep and intertwined relationship between research on games and the development of computers, giving a richer picture of both fields. While doing so, an overview of early game research is presented and an argument made that the
distinction between digital games and non-digital games may be counter-productive to game research as a whole
Poster Abstract: Temperature Hints for Sensornet Routing
No full textReal-world experiments have shown that the transmission power and the received signal strength of low-power radio transceivers used in sensornets decrease when temperature increases. We analyze how this phenomenon affects the network layer, and find that temperature fluctuations may cause undesirable behavior by sensornet routing protocols such as CTP and RPL. Furthermore, we present an approach to make these protocols robust to temperature fluctuations by augmenting the ETX link metric with temperature hints
A thin MIPS hypervisor for embedded systems
No full textEmbedded systems are becoming more and more important as systems and applications are getting more advanced. This increases the demand of and emphasises the need for securing these systems. Virtualization is one tool in solving this problem by providing isolation between trusted critical applications and untrusted feature rich applications. In this thesis we investigate how a thin hypervisor can provide isolation on an MIPS based embedded system with a minimal footprint and performance impact as well as implement and evaluate it
Porting an AUTOSAR-Compliant Operating System to a High Performance Embedded Platform
No full textAutomotive embedded systems are going through a major change, both in terms of how they are used and in terms of software and hardware architecture. Much more powerful and rapidly evolvable hardware is expected, paralleled by an accelerating development rate of the control software. To meet these challenges, a software standard, AUTOSAR, is gaining ground in the automotive eld. In this work, experiences from porting AUTOSAR to a high performance embedded system, Raspberry Pi, are collected. The goal is both to present experience on the process of AUTOSAR porting and to create an AUTOSAR implementation on a cheap and widely accessible hardware platform, making AUTOSAR available for researchers and students
LEAN METHOD TO IDENTIFY IMPROVEMENTS FOR OPERATION CONTROL AT QUARRY SITES
No full textThe operation of Quarry and Aggregate sites are similar to factory production, since it contains sequential production processes, tasks and activities to produce the output product. Compared to the plant though, the quarry processes are generally not synchronized and controlled towards the overall throughput of the site in real time. Some quarries control parts of the production but do generally not utilize real-time technologies for the whole site and all its activities. This fact indicates a general improvement potential in increased productivity at quarry sites, but also unsolved challenges for the same reason. The main contribution of this paper is the presentation of a Lean based method for how to describe the processes to identify control improvement potential within a site. The aim of the identified improvements is to increase overall site productivity by optimizing site, fleet and machine utilization towards the overall throughput, and minimizing operational expenses and inventories. Further the paper exemplifies the methodÂ’s usability with field studies at operational quarry plants successfully identifying and quantifying potential wastes and improvements. In addition the identified productivity improvements based on increased control and automation indicate challenges and needs in wireless communication and sensing technologies
