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1 Introduction
Intelligent systems have become ubiquitous in modern life and increasingly shift the performance of tasks away from humans (Davenport and Kirby 2016). Although this development has many advantages, the interplay between intelligent systems and humans remains a societal and technological challenge (Maedche et al. 2019; Seeber et al. 2020). Taking humans out of the loop may lead to “mindless” ways of working and cause a range of errors due to unforeseen task complexities. Furthermore, human capabilities cannot always cope with intelligent systems’ functionalities (Brynjolfsson and McAfee 2016). In sum, intelligent systems have increased their capabilities and functionalities with a rapid pace and thereby widened the gap to the humans’ (cognitive) capabilities to comprehend and utilize these systems.
One way to support humans in the usage of intelligent systems is providing user assistance that can be instantiated in many different forms such as conversational agents, guidance systems, recommendation agents, robo-advisors, and virtual assistants. Many contemporary user assistant systems rely on some form of either speech-based or text-based conversational user interface, both for receiving input from and delivering output to users using natural language processing (Maedche et al. 2019). Recent assistance functionalities in the private life context (e.g., navigation and mobility assistants or smart home assistants) have demonstrated their usefulness. Furthermore, technology giants (e.g., Amazon, Google, and Microsoft) have announced to release even smarter digital assistants to the market. In an organizational context, recent assistance functionalities support users in semi-automatic invoice processing and intelligent calendar management. In light of these increasingly powerful assistance functionalities, the role of user assistance for interactive intelligent systems deserves more research.
Following earlier works by Benyon (2014) and Maedche et al. (2016), we suggest the following definition.
Definition
We define user assistance as an intelligent system’s capability to assist users while performing their task by means of human-, task-, and/or context-dependent augmentation of the human–computer interaction. User assistance systems bridge the gap between the system’s functionalities and the human’s individual capabilities with the goal of positively influencing task outcomes.
We classify user assistance for intelligent systems along two dimensions: (1) the degree of interactivity enabled by user assistance, and (2) the degree of intelligence of user assistance.Footnote 1 The degree of interactivity characterizes the assistance system’s capability to support humans in an ongoing reciprocal and activating dialog using, potentially, different channels (e.g., text and voice). Highly interactive systems are able to provide feedback in relation to earlier communication points and allow users to control and influence the communication process (Kiousis 2002). The degree of intelligence describes a system’s capability to assist the user and is human-, task-, and/or the context-dependent. It covers aspects of artificial intelligence such as the intention to create machines with minds (Haugeland 1989) and emotional intelligence, i.e. the capabilities to manage, understand, use, and perceive emotions (Mayer et al. 2001). Technological advances in machine learning have dramatically increased the capability of systems to recognize human emotion and, based on this, improve their emotional intelligence (Rouast et al. 2019). Other works have shown how assistance systems could learn about the users’ context unobtrusively through tracking the users’ eyes when using virtual reality equipment (Pfeiffer et al. 2020), automatically sensing the users’ mood when interacting with a chatbot (Feine et al. 2019b), or even assist users in training their own emotional intelligence (Astor et al. 2013).
Along the dimensions of interactivity and intelligence, the framework in Fig. 1 provides a simplified conceptualization of a user’s interaction with a user assistance system. On the left-hand side, the framework recognizes the importance of considering the user’s dynamic interplay of cognition, affect, and behaviour (Jhangiani and Tarry 2014). For instance, user assistance systems are often specifically designed to reduce cognitive effort through targeted recommendations (Jung et al. 2018) or elicit positive emotional states, e.g., satisfaction (Gnewuch et al. 2018). The centre of the framework captures the different input, e.g., eye tracking (Pfeiffer et al. 2020) or text messages (Feine et al. 2019b), and output channels, e.g., avatars graphics (Aljaroodi et al. 2020), between the user and the system (see also Maedche et al. 2019 for a similar differentiation). Finally, on the right-hand side, the framework distinguishes between interactivity and intelligence components of the user assistance system.
One prominent example of user assistance systems that support users in performing IT-based tasks are conversational agents (CA). CAs are “user interfaces that mimic human-to-human communication using natural language processing, machine learning, and/or artificial intelligence” (Schuetzler et al. 2018, p. 94). To increase users’ perception of their human-likeness, CAs usually rely on social cues (e.g., profile picture, name, emotional expressions, or delaying the CA’s response) to trigger social reactions by their users (Gnewuch et al. 2018; Seeger et al. 2018; Feine et al. 2019a). Their primary mode of communication can be text-based and/or speech-based and used in many different contexts, such as private-life (e.g., entertainment, reminders) and professional contexts (e.g., customer service, employee task support) (Gnewuch et al. 2017). The Nuremberg Institute of Market Decisions (NIM), for example, recently found in a study with 1000 users of conversational agents like Alexa, Google Assistant, and Siri that although 58% still see several shortcomings in the current versions, 90% report these assistants to simplify their lives (NIM 2019). Summing up, CAs are a contemporary class of user assistance systems supporting our daily life in many different contexts and situations.
The interview in this special issue with Omer Biran (Conversational AI’s Managing Director) and Michael Halfmann (Head of Intelligent Enterprise Center of Excellence) from SAP furthermore shows how large companies already offer CAs to their employees to support them in the execution of their tasks (e.g., by directly taking care of simple actions or by directing users to the right page). The interviewees emphasize two key challenges in the design of CAs. First, the “horizontal coverage” principle refers to the challenge of CAs being able to respond to a wide range of possible topics that the user may bring up, without resorting to the infamous “Sorry, I did not understand you” default response. Second, “short exchange” principle refers to the challenge of keeping human-CA conversations brief and creating immediate value for the user (e.g., rapid redirection to appropriate content). This stresses the need to put the purpose and added value of human-agent interactions at the forefront of CA design considerations.
2 The Special Issue
The present special issue on User Assistance for Intelligent Systems aims to facilitate research, development, and innovation in user assistance systems. Overall, we received 21 submissions from six different countries, covering a wide range of methods, contexts, and application domains. After a highly competitive and constructive peer review process, three papers about CAs remained. We are delighted to include these three papers in this issue:
In the first paper of this special issue, Diederich et al. (2020) propose and evaluate the design for a CA that offers a human-like interaction experience while mitigating negative effects due to limited responsiveness of the CA. The authors conducted an online experiment to compare users’ perceptions of the CA in comparison to an online training system using a conventional graphical user interface without a CA. The research process concluded in the formulation of a design theory, including four design principles. They found that CAs, which follow the proposed design, are perceived as more useful, enjoyable, human-like, and socially present than an online training system.
In the second paper, Janssen et al. (2020) used a clustering-based approach to develop and evaluate a taxonomy of design elements for domain-specific chatbots. The authors analyzed 103 chatbots from 23 different application domains, based upon which they identified five chatbots archetypes used in practice (i.e. goal-oriented daily, non-goal oriented daily, utility expert, utility facilitator, relationship-oriented). Researchers and practitioners can use the taxonomy to design and classify domain-specific chatbots along the identified dimensions and archetypes.
The third paper by Zschech et al. (2020) presents the design and evaluation of a CA that assists novices in the field of data mining to find the best fitting data mining method for their problem at hand. The CA takes domain-specific problem descriptions in natural language as an input and aims to provide the most suitable class of data mining method as an answer. The authors formulate design principles and features for such text-based CAs and evaluate these empirically using a prototype.
We would like to express our profound gratitude to all the authors as well as the numerous reviewers who have contributed to the research presented in this special issue. A very special thank you goes to the Business and Information Systems Engineering team that made this special issue possible. We hope that researchers and practitioners will find the concepts and scientific results presented in this special issue useful in furthering the field of user assistance for intelligent systems.
Notes
User assistance is related to the concept of decision support. However, it needs to be noted that user assistance (1) does not only apply for decision making but virtually any task and (2) focuses specifically on assistance provided in interaction with the user rather than decision support more broadly outside this interaction.
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Morana, S., Pfeiffer, J. & Adam, M.T.P. User Assistance for Intelligent Systems. Bus Inf Syst Eng 62, 189–192 (2020). https://doi.org/10.1007/s12599-020-00640-5
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DOI: https://doi.org/10.1007/s12599-020-00640-5