There have been fewer studies performed to understand real-world software-testing practice than for other areas of software engineering, such as software requirements, design and development. In particular, surprisingly little is known about global software-testing practices---the practice of outsourcing testing activities to a company offshore---which is currently a large industry and is continuing to grow rapidly. Hence, it is important to study this practice. Moreover, research and anecdotal records provide evidence suggesting that cultural factors greatly impact aspects of the global software-engineering practice (e.g., quality and productivity). The evidence indicates that culture appears to have a greater influence on global software-engineering practice than originally envisioned. Thus, it is important to understand culture's influence particularly on the global-software testing practice. Most of the global software practice studies have used the cultural-dimensions (e.g., Hofstede's dimensions) approach to understand culture’s influence on this practice. However, such dimensional perspectives of culture significantly limit the meaning of culture. Hence, it is important to study culture's influence on global software-testing practice by adopting a non-dimensional perspective of culture so that hidden cultural facets can be identified and uncovered. In this dissertation research, I conducted three ethnographically-informed studies at different Indian vendor organizations, who provided software-testing services to their respective clients in a global setting, to better understand what and how cultural factors influence the global software-testing practice. I used the “culture as models” perspective, adapted from the cultural anthropologist Bradd Shore, to analyze the data from these studies. The dissertation provides a detailed description of the study design, the data analysis, and the insights that emerged from the study. The study provided insights into four embedded cultural models that have emerged from this practice---Agreement, Trust, Flexibility, and Global Software Delivery Cultural Models -- which are described and discussed in detail. This dissertation makes the following contributions. First, it describes a framework that facilitates conducting culture-based studies in the global software- engineering domain. Second, it exposes significant cultural models that are embodied in the specific global software-testing practices investigated to better understand the affordances and clashes of cultural facets of such practices more widely. Third, it presents a ``thick description'' of the role and interplay of these cultural facets in the global software-testing practices investigated. Finally, based on the study insights, the dissertation provides implications for practice and future research.

The growing connectivity of cyber-physical systems (CPSes) has led to an increased concern over the ability of cyber-attacks to inflict physical damage. Current cybersecurity measures focus on preventing attacks from penetrating control supervisory networks. These reactive techniques, however, are often plagued with vulnerabilities and zero-day exploits. Embedded processors in CPS field devices often possess little security of their own, and are easily exploited once the network is penetrated. In response, researchers at Georgia Tech and Virginia Tech have proposed a Trustworthy Autonomic Interface Guardian Architecture (TAIGA), which monitors communication between the embedded controller and physical process. This autonomic architecture provides the physical process with a last line of defense against cyber-attacks by switching process control to a trusted backup controller if an attack causes a system specification violation. This thesis focuses on classifying the effects of cyberattacks on embedded controllers, evaluating TAIGA’s resilience against these attacks, and determining the applicability of TAIGA to other CPSes. This thesis identifies four possible outcomes of a cyber-attack on a CPS embedded processor. We then evaluate TAIGA’s mechanisms to defend against those attack outcomes, and verify TAIGA satisfies the listed trust requirements. Next, we discuss an implementation and the experimental results of TAIGA on a hazardous cargo transportation robot. Then, by making various modifications to the setup configuration, we are able to explore TAIGA’s ability to provide security and process protection to other CPSes with varying levels of autonomy or distributed components.

This thesis aims to describe and analyse how companies establish and maintain relationship quality when outsourcing offshore. In literature we have identified that companies who outsource offshore encounter difficulties with quality and costs. However most of the contracts are renewed even though they encounter these issues. The reason is because relationships are valued higher. In order to create a long-term successful offshore outsourcing, it is of essence for companies to have guidance in how to establish and maintain an effective and fruitful client-vendor relationship.   The identified research research gap we will address in this thesis is the is a lack of research on how to establish and maintain relationship quality in an offshore outsourcing relationship, in terms of exploring the topic from both the client and the vendor perspective.   In the literature review theories and previous research on offshore outsourcing overall is presented, as well as explains what successful and unsuccessful is. The literature review elaborates on relationship quality and social exchange theory in relation to offshore outsourcing. Furthermore, it goes into detail of the variables that are of the utmost interest to create relationship quality. These variables are trust, commitment and satisfaction.   In this study both the client’s and the vendor's perspective is illustrated and compared. This was possible by conducting qualitative interviews with both client and vendor. The interviewees all had several years experience of working with outsourcing to or from India. The empirical finding from these interviews were analysed with help from the theoretical framework. However during the interviews we identified that communication is significantly important when establishing and maintaining relationship. To achieve success in an offshore outsourcing project the communication between the client and the vendor should be trustworthy, transparent, honest and clear, also conflicts should be solved through this type of communication.

In online shopping buyers do not have enough information about sellers and cannot inspect the products before purchasing them. To help buyers find reliable sellers, online marketplaces deploy Trust and Reputation Management (TRM) systems. These systems aggregate buyers’ feedback about the sellers they have interacted with and about the products they have purchased, to inform users within the marketplace about the sellers and products before making purchases. Thus positive customer feedback has become a valuable asset for each seller in order to attract more business. This naturally creates incentives for cheating, in terms of introducing fake positive feedback. Therefore, an important responsibility of TRM systems is to aid buyers find genuine feedback (reviews) about different sellers. Recent TRM systems achieve this goal by selecting and assigning credible advisers to any new customer/buyer. These advisers are selected among the buyers who have had experience with a number of sellers and have provided feedback for their services and goods. As people differ in their tastes, the buyer feedback that would be most useful should come from advisers with similar tastes and values. In addition, the advisers should be honest, i.e. provide truthful reviews and ratings, and not malicious, i.e. not collude with sellers to favour them or with other buyers to badmouth some sellers. Defining the boundary between dishonest and honest advisers is very important. However, currently, there is no systematic approach for setting the honesty threshold which divides benevolent advisers from the malicious ones. The thesis addresses this problem and proposes a market-adaptive honesty threshold management mechanism. In this mechanism the TRM system forms a feedback system which monitors the current status of the e-marketplace. According to the status of the e-marketplace the feedback system improves the performance utilizing PID controller from the field of control systems. The responsibility of this controller is to set the the suitable value of honesty threshold. The results of experiments, using simulation and real-world dataset show that the market-adaptive honesty threshold allows to optimize the performance of the marketplace with respect to throughput and buyer satisfaction.

Trust in direct-to-consumer (DTC) pharmaceutical advertising is declining among consumers. Survey findings suggest providing more information about side effects and benefits to address this issue. Some scholars also criticize the ads for their emotional content despite the key role emotion can play in health-related decision making and trust. Therefore, an experimental study was conducted to assess the relative effectiveness of functional and emotional benefit communication as well the preferred balance of side effects and benefits information provided in DTC pharmaceutical ads in terms of perceived credibility/trust and persuasive outcomes. Results suggest a message including a combination of functional and emotional benefits is considered more credible and informative than an ad describing only emotional benefits. In addition, a high amount of side effect information produces lower brand attitudes and greater perceptions of manipulative intent compared to a low amount of side effect information. Implications for pharmaceutical advertising practitioners and researchers are discussed. / text

published_or_final_version / Education / Doctoral / Doctor of Philosophy

This study carried out in one children’s home in Finland. This study aims to understand how the caregivers collectively perceive their work to secure and construct the childhood of the children living in the children’s home. Furthermore, the study mainly includes caregiver’s perceptions and practices of upbringing of children in the children’s home, which have been thoroughly analysed in the study. The study follows carefully designed two qualitative research methods: focus group interview and text for data collection. The data comprise one focus group interview of seven child care workers that includes five discussion questions about children’s home, listening to the children, importance of rules, regulations and daily routines, children’s future and difficulties in the work. References have been given to the ‘text’, i.e. institution’s policy documents- rules and regulations and the Finnish Child Welfare Act for the analysis of the data. However, the study does not include the analysis of the ‘text’ itself. Moreover, thematic analysis is used for data analysis. The study highlights that understanding childhood comprise the process of trust building between children and care workers- allowing children’s voice, agency, independence and protection respecting the child rights, personal integrity with the provision of safe home, trustable adults and permanent routines and individual child care plan. In addition, the same body ‘caregiver’ who, at the same time, allows child autonomy, agency and independence, also regulates the children’s everyday life, controls children and creates limitation, bridge trust and protect them from developing deviancy and asocial behaviours. Such process gives special consideration to the children’s psychological as well as physical incompetency such as age, immaturity and the vulnerable past in the children’s home that partly creates dilemmas/conflicts in delivering full agency to the children as mentioned in the legal frame work. The study reveals that building trust takes place through interaction between children and care workers and is a long-term process that backs up bringing corrective experiences in children. Listening to the children means helping and teaching them to recognise own feelings, emotions and stand independent and strong for oneself in the future. Likewise, respect to the child rights and organising everyday life delivers protection and safety net to the children. The study reveals, despites various difficulties at work, such as changing welfare act, complicated bureaucracy, unlimited parental rights and surprising legal interference, the child workers have the professional as well as moral obligations to protect children and provide them a safe and intact growing environment. Finally, the study reveals that future of the children is based on the personal choices they make in future and only a few of them will have relatively better life than others. However, all of the children are always under potential risk of post-traumatic collapses.   Keywords: childhood, child perspective, agency, children’s voice, building trust.

This study examined how employees' perceptions of leadership, decision-making, and relationships are associated with their perception of a development operations' effectiveness. Deans, development officers, central development staff, and unit development staff at the University of South Florida were surveyed via email. The results indicated that employees' perceptions of leadership, decision-making, and relationships are strongly related to their perceived job satisfaction, trust, commitment, and control mutuality and consequently their perception of the development operation's effectiveness.

Att tänka på medarbetarnas arbetstillfredsställelse har inte alltid varit något självklart, det var vid 1950-talet som intresset för medarbetarna började bli något etablerat i samhället. Tidigare forskning inom detta ämne har haft olika synvinklar om vad som är viktigt för att medarbetaren ska känna arbetstillfredsställelse. Syftet med denna studie var att undersöka hur två begrepp, arbetstillfredsställelse och stöd från chefen förhåller sig till varandra, och till lärarnas hälsa. En enkätundersökning (N=152, var av 32.8% män) utformades i syfte att undersöka gymnasielärares egen uppfattning om detta. Ett frågeformulär konstruerades av författarna med hjälp av QPSNordic och Frågeformulär om psykosocial arbetsmiljö för att undersöka de underliggande variabler om arbetstillfredsställelse. Slutsatsen som kan dras från denna studie visar att möjlighet till inflytande och stöd från chefen har starkast samband med arbetstillfredsställelsen. När det gäller hälsa har stimulans, stöd från kamraterna och möjlighet att få feedback starkast samband.

Problematization: Studies  indicate  that there  is  a  lack  of  strong  brands  among  the  Swedish mobile  network  operators.  Problems  of  retaining  customers  are  common  among  the  big operators. Few studies on brand equity for intangible products have been done.   Purpose: The purpose of this paper is to investigate which factors  influence  brand equity in the Swedish service sector of mobile network operators.   Theory: This  paper is  limited  to  one  aspect  of  brand  equity,  namely  customer  based  brand equity. Common  constructs of  customer  based  brand  equity are:  brand  awareness,  brand associations, brand loyalty, and perceived quality.    Methodology: The  data  was  collected  with  self-administered  delivery  and  collection questionnaires, which were distributed among university students.   Data: 400 questionnaires were handed out and 363 responses were valid.   Results  and  Conclusion: This  study  indicates  the  importance  of  brand  associations,  brand loyalty, and brand trust for establishing customer based brand equity among the Swedish mobile network operators.