Stephan Böhm - Profile on Academia.edu (original) (raw)

Papers by Stephan Böhm

Today, little is known about how the various elements involved in the presentation of mobile appl... more Today, little is known about how the various elements involved in the presentation of mobile applications (apps) in app stores influence the download or purchase decision. Current publications primairly focus on the possibilities and technical tools of app store marketing based on best practices or experience. However, research on customer preferences with regards to the presentation of apps in app stores as well as the impact of single app store elements on purchase or usage decisions has yet to be addressed. In this context, the key research objective of this paper is to analyse the impact of individual app store elements on customer choice. Accordingly, this study will identify the relative importance of individual app store elements to derive recommendations on how to successfully present mobile applications in app stores. With this objective in mind, a conjoint analysis was carried out in this study for a fictitious mobile messaging app to be presented in the Apple App Store.

DergiPark (Istanbul University), Jun 1, 2013

Reliable usability evaluation results are crucial for the success of mobile applications. A high ... more Reliable usability evaluation results are crucial for the success of mobile applications. A high level of usability implies reduced development costs, reduced maintenance costs and higher customer retention. State-of-the-art usability evaluations produce distorted results for mobile applications, as they are mainly tailored for desktop applications and mostly take place in artificial environments: The test user is isolated from the normal usage context and subject to observation processes which significantly affect the user. This paper presents work in progress and proposes an architecture for a usability evaluation framework which preserves the natural mobile usage context, reduces the interference introduced by observations and reduces the overall costs of the evaluation procedure.

Many services on the Internet are offered free of charge to users. These include web-mail service... more Many services on the Internet are offered free of charge to users. These include web-mail services, which allow access to e-mails via the browser without the installation of an e-mail client. Companies offer free web-mail services, for example, as a complementary service to a paid service or as an introductory or try-out offer. Advertisements are often placed on the portals of web-mail services as a revenue model or to help cover costs. Advertisements may not only contain interesting advertising messages for users, but may also be perceived as annoying depending on the content and extent of the advertising. Too much advertising can lead to a churn of users. Providers, therefore, find themselves in an area of conflict between pushing advertising to increase advertising revenues and limiting advertising to prevent customer churn. This study examines the impact of advertising intensity and the change intention of web-mail users. The study was conducted among the customers of the Teleko...

Impact of the Mobile Operating System on Smartphone Buying Decisions: A Conjoint-Based Empirical Analysis

Springer eBooks, 2015

A key technical product feature of today’s Smartphones is the mobile Operating System (OS). The c... more A key technical product feature of today’s Smartphones is the mobile Operating System (OS). The choice in OS, not only commits consumers to essential technical features, but also has implications with regard to the user interface or availability of applications in the associated App Stores. In this context, this article examines the significance of the mobile operating systems with regards to the purchase decision. To this end, an empirical survey of Android and iOS buyers was carried out using a Choice Based Conjoint (CBC) analysis. In addition, the importance of various OS features as well as differences in personal attributes of Android and iOS users were analyzed. As a result, important differences are presented in terms of the attitudes and preferences of these groups of buyers with regard to mobile operating systems. In particular, it was found that the mobile OS plays the most important role in the purchase decision compared to brand, price, or design.

International Journal of Interactive Mobile Technologies (iJIM), 2020

Mobile enterprise applications (apps) are developed in dynamic and complex environments. Hardware... more Mobile enterprise applications (apps) are developed in dynamic and complex environments. Hardware characteristics, operating systems and development tools are constantly changing. In larger institutions, comprehensive corporate guidelines and requirements have to be followed. In addition, larger enterprises often develop numerous apps and lack an overview of development projects. Because of the size of such companies, a comprehensive direct information exchange between developers is often not practicable. In this situation, IT support is necessary, for example to prevent unnecessary duplication of work in the development of software artifacts such as user stories, app screen designs or code features within the company. One approach to overcome these challenges is to support reusing results from previous projects by building systems to organize and analyse the knowledge base of enterprise app development projects. For such systems an automatic categorization of artifacts is required....

International Journal of Internet Marketing and Advertising, 2018

Among various mobile-based communication technologies, QR codes have recently gained a great popu... more Among various mobile-based communication technologies, QR codes have recently gained a great popularity in mobile advertising. These codes are used by marketers for advertising in various ways such as in print media, in outdoor advertising, or even on the product packages so that consumers could get relevant information at instance. In the current literature perceived usefulness, behavioural intention, previous experience, knowledge and environmental constraints have been identified as the factors that lead consumers to scan QR code ads. The aim of this study was to investigate the factors and their extent in influencing the QR code ad scanning behaviour of

Journal of E-Technology, Nov 1, 2018

Human resource management and recruiting in particular are subject to constant change-not least d... more Human resource management and recruiting in particular are subject to constant change-not least due to everincreasing digitalization. One way to improve efficiency in digital recruiting is to automate process steps using innovative technologies. In this context, chatbots are innovative conversational systems that offer such a potential. When applied to the field of recruiting, a chatbot can establish a new channel for the communication between a company and potential applicants. This paper investigates motivators and barriers of recruiting chatbot usage as well as the candidates' expectations and preferences on the chatbot design. Moreover, factors influencing the perception of recruiting chatbots derived from the theory of social presence were investigated. The empirical study was carried out in the form of a quantitative online questionnaire within a sample of 213 respondents in Germany. As a result, the study reveals a general interest in the usage of recruiting chatbots as well as important motivators, barriers, and design preferences from the candidate perspective.

Proceedings of the 2020 on Computers and People Research Conference

In Germany, as in many other industrial nations, there is currently a shortage of skilled workers... more In Germany, as in many other industrial nations, there is currently a shortage of skilled workers in the IT sector, also known as the "war for talents". It is becoming increasingly difficult for companies to find suitable personnel using traditional recruiting instruments. Against this background, but also due to legal requirements, it is becoming more and more important that job postings are formulated in such a way that they have the greatest possible impact and no group of suitable applicants feels excluded. This study presents an approach that can be used to measure the gender bias in job postings in particular. A respective tool could provide recruiters with an instrument to identify and prevent unwanted gender bias. In our study, the prototype of such a tool will be developed and initially applied to analyse job postings in the IT sector of the German job market in comparison to samples from the automotive and health care sectors. We present some key statistics of this analysis and an outlook on future work. CCS CONCEPTS • Social and professional topics → Employment issues.

Abstract—Accessing the Web from mobile devices has become increasingly common even when searching... more Abstract—Accessing the Web from mobile devices has become increasingly common even when searching for job information. Nowadays, most job board offerings are mobile-optimized. How-ever, the search results often refer to job advertisements (ads) and external career pages that are not completely optimized for mobile access. As a result, mobile users may be confronted with inadequate usability or a dissatisfactory user experience. In this context, the purpose of this study is to assess the usability of job ads posted on job portals to identify deficits and best practices. This paper is a work in progress and presents the intended multi-method approach as well as some preliminary findings for an exemplary sample of job ads posted on a German job board.

KI im Recruiting: Anwendungsfelder, Entwicklungsstand und Anwendungsbeispiele aus der Praxis

Im Recruiting sind oftmals große Datenmengen aufzubereiten und zu analysieren. Das Ziel dabei: Di... more Im Recruiting sind oftmals große Datenmengen aufzubereiten und zu analysieren. Das Ziel dabei: Die Informationsverarbeitung und Entscheidungsfindung vor, während und nach der Bewerbung zu optimieren sowie die Kommunikation zwischen Recruitingverantwortlichen, Fachabteilungen und Bewerbern zu unterstützen. Für den Einsatz von Verfahren der Künstlichen Intelligenz eröffnen sich in diesem Bereich vielfältige Anwendungsmöglichkeiten entlang des gesamten Recruitingprozesses bzw. der sogenannten „Candidate Journey“. Diese Anwendungsfelder und zugehörigen Potenziale für den KI-Einsatz werden im Beitrag zunächst systematisch beschrieben. Danach werden Erkenntnisse aus konkreten Pilotanwendungen vorgestellt. Hierzu gehören eine KI-Anwendung zur Unterstützung der Recruiter bei der Formulierung von Stellenanzeigen sowie die Einsatzmöglichkeiten von Chatbots im Bewerbersupport.

The growing use of the mobile web and other mobile information technologies has opened up new opp... more The growing use of the mobile web and other mobile information technologies has opened up new opportunities for organizational communication. The implementation of the mobile channel in the personnel marketing mix offers interesting perspectives but is not yet widely applied. Similarly, knowledge about realization opportunities and empirical evidence on user acceptance is missing so far. In order to provide some informative background and theoretical foundation, this study will demonstrate the opportunities of applying mobile technologies for personnel recruiting. First, we will describe the concept of mobile recruiting and the underlying mobile technologies and services. Afterwards, we will investigate the user-sided acceptance of such offerings. For this purpose, we propose a technology acceptance model adjusted to the context of mobile services for personnel recruiting. The compiled model will be empirically tested and findings will be discussed concerning further research and practical implementation.

Mobile information services are increasingly growing in popularity: end-users are getting used to... more Mobile information services are increasingly growing in popularity: end-users are getting used to "being always on", and they are changing their everyday communication behavior. Organizations focus on new ways of creating value-adding services for their customers, and researchers explore aspects of success and implementation of mobile services. In this connection, organizations have a keen interest in information about prospective acceptance and use of their offerings. However, research on the scope of mobile service acceptance often lacks practical relevance, as recommendations for enhancing prospective acceptance are seldom provided. To contribute to this part, the present study investigates user acceptance of mobile services, also showing up a concrete possibility of increasing behavioral intention to use such services by assisting their accessibility via Mobile Tagging. For this, characteristics and functionality of Mobile Tagging for access facilitation are presented first. After that, an integrated acceptance model is compiled and empirically tested. The results found, show that including Mobile Tagging into an integrated cross-media communication strategy significantly enhances the intention to use mobile services. Additionally, the findings indicate that mobile information service acceptance is strongly influenced by individual personality factors, and offerings should therefore be systematically addressed at selective target groups.

Chatbots are text-based dialogue systems that automate communication processes. Instead of commun... more Chatbots are text-based dialogue systems that automate communication processes. Instead of communicating with a person, the user communicates with a computer system. Due to the use of Artificial Intelligence (AI) methods, such systems have become increasingly powerful in recent years and allow for more realistic dialogue processes. In particular, methods from the field of machine learning have contributed to an improved understanding of natural language. Nevertheless, such systems are not yet able to acquire the knowledge required to answer user queries independently. Dialogue structures and elements need to be defined as the conversational design of the chatbot. Herein, an user intent describes an information need or a goal that the user aims to achieve by entering text. For a usercentered chatbot design, a relevant set of intents must be identified and structured. In addition, training questions are required in order train the AI models for matching user input with the defined set...

Today, little is known about how the various elements involved in the presentation of mobile appl... more Today, little is known about how the various elements involved in the presentation of mobile applications (apps) in app stores influence the download or purchase decision of potential users. Current publications primarily focus on the possibilities and technical tools of app store marketing based on best practices or experience. However, research on customer preferences with regards to the presentation of apps in app stores as well as the impact of single app store elements on purchase or usage decisions has yet to be addressed. In this context, the key research objectives of this paper are to not only analyze the impact of individual app store elements on customer choice but also see if the customers can be segmented into homogenous groups according to their preferences. Accordingly, this study will identify the relative importance of individual app store elements, from both a general or mass market perspective as well as a user segmentation perspective, and derive recommendations ...

Strategisches Management in virtuellen Unternehmen

Virtuelle Unternehmen, 2000

In der betriebswirtschaftlichen Literatur zu virtuellen Unternehmen wird gemeinhin implizit angen... more In der betriebswirtschaftlichen Literatur zu virtuellen Unternehmen wird gemeinhin implizit angenommen, das solche interorganisationalen Kooperationsnetzwerke nicht durch planerische Uberlegungen zur systematischen Identifikation und Erschliesung von Erfolgspotentialen i. S. der fur konventionelle Unternehmen entwickelten Idee eines strategischen Managements entstehen. Vielmehr wird unterstellt, das virtuelle Unternehmen uber dezentrale Selbstorganisationsmechanismen „erzeugt“ werden. In der vorliegenden Arbeit wird gezeigt, das wichtige Voraussetzungen fur die Genese virtueller Unternehmen im Wege der Selbstorganisation (vollstandige Information, Kompatibilitat, Disponibilitat, Singularitat) nicht zutreffen. Folglich sind alternative Managementansatze zur Losung des Problems zu diskutieren, wie eine planerische Konfiguration von virtuellen Unternehmen unter Beachtung von temporaren Marktchancen und von Kernkompetenzen potentieller Netzwerkpartner initiiert und gegebenenfalls im Verlauf der Existenz eines solchen Unternehmens angepast werden kann. Eine derartige Moglichkeit zur Wahrnehmung strategischer Managementfunktionen fur virtuelle Unternehmen ist das Auftreten eines neuen Unternehmenstyps, der hier als „Integrator“ bezeichnet wird. Integratoren bringen als unterstutzende Wertaktivitat in virtuellen Unternehmen ihre Fahigkeit zur Bildung und Integration von dynamischen Unternehmensnetzwerken ein, wobei sich die Art ihrer Wertbeitrage in Abhangigkeit von der Lebenszyklusphase, in der sich ein virtuelles Unternehmen gerade befindet, verandert. Es lassen sich drei Typen von Integratoren in virtuellen Unternehmen unterscheiden, die wir als „Unternehmer“, „Geschaftsvermittler“ und „Opportunist“ etikettieren. Die Relevanz der Integrator-Typen fur einzelne Partner hangt von der Anwendungsbreite der Kernkompetenz des jeweiligen Partnerunternehmens sowie der Relevanz dieser Kompetenz fur den Wettbewerbserfolg virtueller Unternehmen ab.

Faulty Results by Neglecting Mobile Service Usage Context

Impact of the Mobile Operating System on Smartphone Buying Decisions: A Conjoint-Based Empirical Analysis

Lecture Notes in Computer Science, 2015

A key technical product feature of today’s Smartphones is the mobile Operating System (OS). The c... more A key technical product feature of today’s Smartphones is the mobile Operating System (OS). The choice in OS, not only commits consumers to essential technical features, but also has implications with regard to the user interface or availability of applications in the associated App Stores. In this context, this article examines the significance of the mobile operating systems with regards to the purchase decision. To this end, an empirical survey of Android and iOS buyers was carried out using a Choice Based Conjoint (CBC) analysis. In addition, the importance of various OS features as well as differences in personal attributes of Android and iOS users were analyzed. As a result, important differences are presented in terms of the attitudes and preferences of these groups of buyers with regard to mobile operating systems. In particular, it was found that the mobile OS plays the most important role in the purchase decision compared to brand, price, or design.

Procedia Computer Science, 2015

The rapid proliferation of mobile devices and its wide integration into people's daily life have ... more The rapid proliferation of mobile devices and its wide integration into people's daily life have enabled a wide range of applications that benefit from users' context to deliver more personalized services. In this regard, teaching and learning systems have also evolved, and yet, many of these approaches have migrated to the mobile world in order to improve user experience by delivering information relevant to the individual's context. In this paper we present a context-aware mobile language learning application, focused on providing language support to users living in foreign countries. It suggests context-relevant vocabulary, considering usage context attributes such as user's gender, geolocation, and native language. The application architecture is composed by three components which are able to dynamically acquire and analyze the usage context to provide the corresponding information based on a domain knowledge. Our proof of concept was distributed among 27 users, and we analyzed their interactions with the application during a period of two months. Initial results demonstrate that the 37% of the users showed strong interest to use this kind of app, revealing a high usage potential in realistic scenarios.

The proliferation of smartphones has increased significantly in recent years. Due to the availabi... more The proliferation of smartphones has increased significantly in recent years. Due to the availability of higher data rates, video content is increasingly being accessed via these devices. Due to changes in media usage behaviour, companies are currently faced with the challenge of adapting their recruitment activities to enable access via mobile devices and increasingly to integrate multimedia and dynamic content. In view of the above, this study examines user reactions to the enhancement of job ads with video content using a case study in a German job portal. The results of this study are promising and suggest that the integration of mobile video may be appropriate to increase interest in job advertisements. In addition, initial findings for the design and integration of such recruiting videos can be derived. The limits of panel surveys, however, also became apparent and more extensive research will be required in order to be able to make general recommendations. Keywords-Mobile Rec...

Today, little is known about how the various elements involved in the presentation of mobile appl... more Today, little is known about how the various elements involved in the presentation of mobile applications (apps) in app stores influence the download or purchase decision. Current publications primairly focus on the possibilities and technical tools of app store marketing based on best practices or experience. However, research on customer preferences with regards to the presentation of apps in app stores as well as the impact of single app store elements on purchase or usage decisions has yet to be addressed. In this context, the key research objective of this paper is to analyse the impact of individual app store elements on customer choice. Accordingly, this study will identify the relative importance of individual app store elements to derive recommendations on how to successfully present mobile applications in app stores. With this objective in mind, a conjoint analysis was carried out in this study for a fictitious mobile messaging app to be presented in the Apple App Store.

DergiPark (Istanbul University), Jun 1, 2013

Reliable usability evaluation results are crucial for the success of mobile applications. A high ... more Reliable usability evaluation results are crucial for the success of mobile applications. A high level of usability implies reduced development costs, reduced maintenance costs and higher customer retention. State-of-the-art usability evaluations produce distorted results for mobile applications, as they are mainly tailored for desktop applications and mostly take place in artificial environments: The test user is isolated from the normal usage context and subject to observation processes which significantly affect the user. This paper presents work in progress and proposes an architecture for a usability evaluation framework which preserves the natural mobile usage context, reduces the interference introduced by observations and reduces the overall costs of the evaluation procedure.

Many services on the Internet are offered free of charge to users. These include web-mail service... more Many services on the Internet are offered free of charge to users. These include web-mail services, which allow access to e-mails via the browser without the installation of an e-mail client. Companies offer free web-mail services, for example, as a complementary service to a paid service or as an introductory or try-out offer. Advertisements are often placed on the portals of web-mail services as a revenue model or to help cover costs. Advertisements may not only contain interesting advertising messages for users, but may also be perceived as annoying depending on the content and extent of the advertising. Too much advertising can lead to a churn of users. Providers, therefore, find themselves in an area of conflict between pushing advertising to increase advertising revenues and limiting advertising to prevent customer churn. This study examines the impact of advertising intensity and the change intention of web-mail users. The study was conducted among the customers of the Teleko...

Impact of the Mobile Operating System on Smartphone Buying Decisions: A Conjoint-Based Empirical Analysis

Springer eBooks, 2015

A key technical product feature of today’s Smartphones is the mobile Operating System (OS). The c... more A key technical product feature of today’s Smartphones is the mobile Operating System (OS). The choice in OS, not only commits consumers to essential technical features, but also has implications with regard to the user interface or availability of applications in the associated App Stores. In this context, this article examines the significance of the mobile operating systems with regards to the purchase decision. To this end, an empirical survey of Android and iOS buyers was carried out using a Choice Based Conjoint (CBC) analysis. In addition, the importance of various OS features as well as differences in personal attributes of Android and iOS users were analyzed. As a result, important differences are presented in terms of the attitudes and preferences of these groups of buyers with regard to mobile operating systems. In particular, it was found that the mobile OS plays the most important role in the purchase decision compared to brand, price, or design.

International Journal of Interactive Mobile Technologies (iJIM), 2020

Mobile enterprise applications (apps) are developed in dynamic and complex environments. Hardware... more Mobile enterprise applications (apps) are developed in dynamic and complex environments. Hardware characteristics, operating systems and development tools are constantly changing. In larger institutions, comprehensive corporate guidelines and requirements have to be followed. In addition, larger enterprises often develop numerous apps and lack an overview of development projects. Because of the size of such companies, a comprehensive direct information exchange between developers is often not practicable. In this situation, IT support is necessary, for example to prevent unnecessary duplication of work in the development of software artifacts such as user stories, app screen designs or code features within the company. One approach to overcome these challenges is to support reusing results from previous projects by building systems to organize and analyse the knowledge base of enterprise app development projects. For such systems an automatic categorization of artifacts is required....

International Journal of Internet Marketing and Advertising, 2018

Among various mobile-based communication technologies, QR codes have recently gained a great popu... more Among various mobile-based communication technologies, QR codes have recently gained a great popularity in mobile advertising. These codes are used by marketers for advertising in various ways such as in print media, in outdoor advertising, or even on the product packages so that consumers could get relevant information at instance. In the current literature perceived usefulness, behavioural intention, previous experience, knowledge and environmental constraints have been identified as the factors that lead consumers to scan QR code ads. The aim of this study was to investigate the factors and their extent in influencing the QR code ad scanning behaviour of

Journal of E-Technology, Nov 1, 2018

Human resource management and recruiting in particular are subject to constant change-not least d... more Human resource management and recruiting in particular are subject to constant change-not least due to everincreasing digitalization. One way to improve efficiency in digital recruiting is to automate process steps using innovative technologies. In this context, chatbots are innovative conversational systems that offer such a potential. When applied to the field of recruiting, a chatbot can establish a new channel for the communication between a company and potential applicants. This paper investigates motivators and barriers of recruiting chatbot usage as well as the candidates' expectations and preferences on the chatbot design. Moreover, factors influencing the perception of recruiting chatbots derived from the theory of social presence were investigated. The empirical study was carried out in the form of a quantitative online questionnaire within a sample of 213 respondents in Germany. As a result, the study reveals a general interest in the usage of recruiting chatbots as well as important motivators, barriers, and design preferences from the candidate perspective.

Proceedings of the 2020 on Computers and People Research Conference

In Germany, as in many other industrial nations, there is currently a shortage of skilled workers... more In Germany, as in many other industrial nations, there is currently a shortage of skilled workers in the IT sector, also known as the "war for talents". It is becoming increasingly difficult for companies to find suitable personnel using traditional recruiting instruments. Against this background, but also due to legal requirements, it is becoming more and more important that job postings are formulated in such a way that they have the greatest possible impact and no group of suitable applicants feels excluded. This study presents an approach that can be used to measure the gender bias in job postings in particular. A respective tool could provide recruiters with an instrument to identify and prevent unwanted gender bias. In our study, the prototype of such a tool will be developed and initially applied to analyse job postings in the IT sector of the German job market in comparison to samples from the automotive and health care sectors. We present some key statistics of this analysis and an outlook on future work. CCS CONCEPTS • Social and professional topics → Employment issues.

Abstract—Accessing the Web from mobile devices has become increasingly common even when searching... more Abstract—Accessing the Web from mobile devices has become increasingly common even when searching for job information. Nowadays, most job board offerings are mobile-optimized. How-ever, the search results often refer to job advertisements (ads) and external career pages that are not completely optimized for mobile access. As a result, mobile users may be confronted with inadequate usability or a dissatisfactory user experience. In this context, the purpose of this study is to assess the usability of job ads posted on job portals to identify deficits and best practices. This paper is a work in progress and presents the intended multi-method approach as well as some preliminary findings for an exemplary sample of job ads posted on a German job board.

KI im Recruiting: Anwendungsfelder, Entwicklungsstand und Anwendungsbeispiele aus der Praxis

Im Recruiting sind oftmals große Datenmengen aufzubereiten und zu analysieren. Das Ziel dabei: Di... more Im Recruiting sind oftmals große Datenmengen aufzubereiten und zu analysieren. Das Ziel dabei: Die Informationsverarbeitung und Entscheidungsfindung vor, während und nach der Bewerbung zu optimieren sowie die Kommunikation zwischen Recruitingverantwortlichen, Fachabteilungen und Bewerbern zu unterstützen. Für den Einsatz von Verfahren der Künstlichen Intelligenz eröffnen sich in diesem Bereich vielfältige Anwendungsmöglichkeiten entlang des gesamten Recruitingprozesses bzw. der sogenannten „Candidate Journey“. Diese Anwendungsfelder und zugehörigen Potenziale für den KI-Einsatz werden im Beitrag zunächst systematisch beschrieben. Danach werden Erkenntnisse aus konkreten Pilotanwendungen vorgestellt. Hierzu gehören eine KI-Anwendung zur Unterstützung der Recruiter bei der Formulierung von Stellenanzeigen sowie die Einsatzmöglichkeiten von Chatbots im Bewerbersupport.

The growing use of the mobile web and other mobile information technologies has opened up new opp... more The growing use of the mobile web and other mobile information technologies has opened up new opportunities for organizational communication. The implementation of the mobile channel in the personnel marketing mix offers interesting perspectives but is not yet widely applied. Similarly, knowledge about realization opportunities and empirical evidence on user acceptance is missing so far. In order to provide some informative background and theoretical foundation, this study will demonstrate the opportunities of applying mobile technologies for personnel recruiting. First, we will describe the concept of mobile recruiting and the underlying mobile technologies and services. Afterwards, we will investigate the user-sided acceptance of such offerings. For this purpose, we propose a technology acceptance model adjusted to the context of mobile services for personnel recruiting. The compiled model will be empirically tested and findings will be discussed concerning further research and practical implementation.

Mobile information services are increasingly growing in popularity: end-users are getting used to... more Mobile information services are increasingly growing in popularity: end-users are getting used to "being always on", and they are changing their everyday communication behavior. Organizations focus on new ways of creating value-adding services for their customers, and researchers explore aspects of success and implementation of mobile services. In this connection, organizations have a keen interest in information about prospective acceptance and use of their offerings. However, research on the scope of mobile service acceptance often lacks practical relevance, as recommendations for enhancing prospective acceptance are seldom provided. To contribute to this part, the present study investigates user acceptance of mobile services, also showing up a concrete possibility of increasing behavioral intention to use such services by assisting their accessibility via Mobile Tagging. For this, characteristics and functionality of Mobile Tagging for access facilitation are presented first. After that, an integrated acceptance model is compiled and empirically tested. The results found, show that including Mobile Tagging into an integrated cross-media communication strategy significantly enhances the intention to use mobile services. Additionally, the findings indicate that mobile information service acceptance is strongly influenced by individual personality factors, and offerings should therefore be systematically addressed at selective target groups.

Chatbots are text-based dialogue systems that automate communication processes. Instead of commun... more Chatbots are text-based dialogue systems that automate communication processes. Instead of communicating with a person, the user communicates with a computer system. Due to the use of Artificial Intelligence (AI) methods, such systems have become increasingly powerful in recent years and allow for more realistic dialogue processes. In particular, methods from the field of machine learning have contributed to an improved understanding of natural language. Nevertheless, such systems are not yet able to acquire the knowledge required to answer user queries independently. Dialogue structures and elements need to be defined as the conversational design of the chatbot. Herein, an user intent describes an information need or a goal that the user aims to achieve by entering text. For a usercentered chatbot design, a relevant set of intents must be identified and structured. In addition, training questions are required in order train the AI models for matching user input with the defined set...

Today, little is known about how the various elements involved in the presentation of mobile appl... more Today, little is known about how the various elements involved in the presentation of mobile applications (apps) in app stores influence the download or purchase decision of potential users. Current publications primarily focus on the possibilities and technical tools of app store marketing based on best practices or experience. However, research on customer preferences with regards to the presentation of apps in app stores as well as the impact of single app store elements on purchase or usage decisions has yet to be addressed. In this context, the key research objectives of this paper are to not only analyze the impact of individual app store elements on customer choice but also see if the customers can be segmented into homogenous groups according to their preferences. Accordingly, this study will identify the relative importance of individual app store elements, from both a general or mass market perspective as well as a user segmentation perspective, and derive recommendations ...

Strategisches Management in virtuellen Unternehmen

Virtuelle Unternehmen, 2000

In der betriebswirtschaftlichen Literatur zu virtuellen Unternehmen wird gemeinhin implizit angen... more In der betriebswirtschaftlichen Literatur zu virtuellen Unternehmen wird gemeinhin implizit angenommen, das solche interorganisationalen Kooperationsnetzwerke nicht durch planerische Uberlegungen zur systematischen Identifikation und Erschliesung von Erfolgspotentialen i. S. der fur konventionelle Unternehmen entwickelten Idee eines strategischen Managements entstehen. Vielmehr wird unterstellt, das virtuelle Unternehmen uber dezentrale Selbstorganisationsmechanismen „erzeugt“ werden. In der vorliegenden Arbeit wird gezeigt, das wichtige Voraussetzungen fur die Genese virtueller Unternehmen im Wege der Selbstorganisation (vollstandige Information, Kompatibilitat, Disponibilitat, Singularitat) nicht zutreffen. Folglich sind alternative Managementansatze zur Losung des Problems zu diskutieren, wie eine planerische Konfiguration von virtuellen Unternehmen unter Beachtung von temporaren Marktchancen und von Kernkompetenzen potentieller Netzwerkpartner initiiert und gegebenenfalls im Verlauf der Existenz eines solchen Unternehmens angepast werden kann. Eine derartige Moglichkeit zur Wahrnehmung strategischer Managementfunktionen fur virtuelle Unternehmen ist das Auftreten eines neuen Unternehmenstyps, der hier als „Integrator“ bezeichnet wird. Integratoren bringen als unterstutzende Wertaktivitat in virtuellen Unternehmen ihre Fahigkeit zur Bildung und Integration von dynamischen Unternehmensnetzwerken ein, wobei sich die Art ihrer Wertbeitrage in Abhangigkeit von der Lebenszyklusphase, in der sich ein virtuelles Unternehmen gerade befindet, verandert. Es lassen sich drei Typen von Integratoren in virtuellen Unternehmen unterscheiden, die wir als „Unternehmer“, „Geschaftsvermittler“ und „Opportunist“ etikettieren. Die Relevanz der Integrator-Typen fur einzelne Partner hangt von der Anwendungsbreite der Kernkompetenz des jeweiligen Partnerunternehmens sowie der Relevanz dieser Kompetenz fur den Wettbewerbserfolg virtueller Unternehmen ab.

Faulty Results by Neglecting Mobile Service Usage Context

Impact of the Mobile Operating System on Smartphone Buying Decisions: A Conjoint-Based Empirical Analysis

Lecture Notes in Computer Science, 2015

A key technical product feature of today’s Smartphones is the mobile Operating System (OS). The c... more A key technical product feature of today’s Smartphones is the mobile Operating System (OS). The choice in OS, not only commits consumers to essential technical features, but also has implications with regard to the user interface or availability of applications in the associated App Stores. In this context, this article examines the significance of the mobile operating systems with regards to the purchase decision. To this end, an empirical survey of Android and iOS buyers was carried out using a Choice Based Conjoint (CBC) analysis. In addition, the importance of various OS features as well as differences in personal attributes of Android and iOS users were analyzed. As a result, important differences are presented in terms of the attitudes and preferences of these groups of buyers with regard to mobile operating systems. In particular, it was found that the mobile OS plays the most important role in the purchase decision compared to brand, price, or design.

Procedia Computer Science, 2015

The rapid proliferation of mobile devices and its wide integration into people's daily life have ... more The rapid proliferation of mobile devices and its wide integration into people's daily life have enabled a wide range of applications that benefit from users' context to deliver more personalized services. In this regard, teaching and learning systems have also evolved, and yet, many of these approaches have migrated to the mobile world in order to improve user experience by delivering information relevant to the individual's context. In this paper we present a context-aware mobile language learning application, focused on providing language support to users living in foreign countries. It suggests context-relevant vocabulary, considering usage context attributes such as user's gender, geolocation, and native language. The application architecture is composed by three components which are able to dynamically acquire and analyze the usage context to provide the corresponding information based on a domain knowledge. Our proof of concept was distributed among 27 users, and we analyzed their interactions with the application during a period of two months. Initial results demonstrate that the 37% of the users showed strong interest to use this kind of app, revealing a high usage potential in realistic scenarios.

The proliferation of smartphones has increased significantly in recent years. Due to the availabi... more The proliferation of smartphones has increased significantly in recent years. Due to the availability of higher data rates, video content is increasingly being accessed via these devices. Due to changes in media usage behaviour, companies are currently faced with the challenge of adapting their recruitment activities to enable access via mobile devices and increasingly to integrate multimedia and dynamic content. In view of the above, this study examines user reactions to the enhancement of job ads with video content using a case study in a German job portal. The results of this study are promising and suggest that the integration of mobile video may be appropriate to increase interest in job advertisements. In addition, initial findings for the design and integration of such recruiting videos can be derived. The limits of panel surveys, however, also became apparent and more extensive research will be required in order to be able to make general recommendations. Keywords-Mobile Rec...