Understanding the role of emotions, usability components and design features in HCI

This paper has discussed the observations of various emotions which are invoked in the human computer interface and how these emotions affect the decisions of the users online. This paper has also discussed usability test methods in the human computer interface design and its relation with the usability of the interfaces. Also some principles are put forward which should be implemented for the development of better interfaces

Usability Evaluation in Virtual Environments: Classification and Comparison of Methods

Virtual environments (VEs) are a relatively new type of human-computer interface in which users perceive and act in a three-dimensional world. The designers of such systems cannot rely solely on design guidelines for traditional two-dimensional interfaces, so usability evaluation is crucial for VEs. We present an overview of VE usability evaluation. First, we discuss some of the issues that differentiate VE usability evaluation from evaluation of traditional user interfaces such as GUIs. We also present a review of VE evaluation methods currently in use, and discuss a simple classification space for VE usability evaluation methods. This classification space provides a structured means for comparing evaluation methods according to three key characteristics: involvement of representative users, context of evaluation, and types of results produced. To illustrate these concepts, we compare two existing evaluation approaches: testbed evaluation [Bowman, Johnson, & Hodges, 1999], and sequential evaluation [Gabbard, Hix, & Swan, 1999]. We conclude by presenting novel ways to effectively link these two approaches to VE usability evaluation

Design Science Research Modes in Human-Computer Interaction Projects

In this editorial, we introduce the special issue on design science research in human-computer interaction with four papers extended from the 2020 European Conference on Information Systems and propose a conceptual model for such research projects. Research in the interdisciplinary human-computer interaction (HCI) discipline advances knowledge of how humans interact with technologies, systems, information, and work structures. Design science research (DSR) methods support three distinct modes in HCI projects. In the interior mode, researchers build and evaluate novel technical solutions with a focus on improved system interfaces to support effective human use. Next, in the exterior mode, researchers build and evaluate novel behavioral solutions with a process focus on interactions that increase human capabilities. Lastly, in the gestalt mode, researchers build and evaluate novel composite solutions that improve synergies between technologies and human behaviors. We pose a comprehensive model for identifying the DSR modes of HCI research with related artifacts, evaluation techniques, design theories, and research impacts

The digitally 'Hand Made' object

This article will outline the author’s investigations of types of computer interfaces in practical three-dimensional design practice. The paper contains a description of two main projects in glass and ceramic tableware design, using a Microscribe G2L digitising arm as an interface to record three-dimensional spatial\ud design input.\ud \ud The article will provide critical reflections on the results of the investigations and will argue that new approaches in digital design interfaces could have relevance in developing design methods which incorporate more physical ‘human’ expressions in a three-dimensional design practice. The research builds on concepts indentified in traditional craft practice as foundations for constructing new types of creative practices based on the use of digital technologies, as outlined by McCullough (1996)

Task Flow Modeling in Electronic Business Environments

In recent years, internet based commerce has developed as a new paradigm. Many factors such as "at home delivery", easy ordering, and usually lower prices contributed to the success of the e-commerce. However, more recently, companies realized that one of the major factors in having a successful internet based business is the design of a user interface that is in concordance with the users' expectations, which includes both functionality and user friendly features. The func-tionality feature of an e-business interface is one of the most important elements when discussing about a specific internet based business. In our paper, we present methods to model task flows for e-business interfaces. We strengthen our study with the design modeling of a practical scenario that may appear in an on-line commercial environment.task flow, e-business, hierarchical model, user interface, human-computer interaction

Building Better Interfaces for Remote Autonomous Systems

This 'Open Access' SpringerBrief provides foundational knowledge for designing autonomous, asynchronous systems and explains aspects of users relevant to designing for these systems, introduces principles for user-centered design, and prepares readers for more advanced and specific readings. It provides context and the implications for design choices made during the design and development of the complex systems that are part of operation centers. As such, each chapter includes principles to summarize the design implication that engineers can use to inform their own design of interfaces for operation centers and similar systems. It includes example materials for the design of a fictitious system, which are referenced in the book and can be duplicated and extended for real systems. The design materials include a system overview, the system architecture, an example scenario, a stakeholder analysis, a task analysis, a description of the system and interface technology, and contextualized design guidelines. The guidelines can be specified because the user, the task, and the technology are well specified as an example. Building Better Interfaces for Remote Autonomous Systems is for working system engineers who are designing interfaces used in high throughput, high stake, operation centers (op centers) or control rooms, such as network operation centers (NOCs). Intended users will have a technical undergraduate degree (e.g., computer science) with little or no training in design, human sciences, or with human-centered iterative design methods and practices. Background research for the book was supplemented by interaction with the intended audience through a related project with L3Harris Technologies (formerly Harris Corporation)

Principles of Human Computer Interaction Design: HCI Design

This book covers the design, evaluation and development process for interactive human computer interfaces including user interface design principles, task analysis, interface design methods, auditory interfaces, haptics, user interface evaluation, usability testing prototyping, issues in interface construction, interface evaluation, World Wide Web and mobile device interface issues.The book is ideal for the student that wants to learn how to use prototyping tools as part of the interface design and how to evaluate an interface and its interaction quality by using usability testing techniques

An Investigation of the Correlation Between Mental Workload and Web User’s Interaction

Mental Workload, a psychological concept, was identified as being linked with task’s and system’s performance. In the context of Human-Computer Interaction, recent research has identified Mental Workload as an important measure in the designing and evaluation of web interfaces, and as an additional and supplemental insight to typical usability evaluation methods. Simultaneously, web logs containing data related to web users’ interaction (e.g. scrolling; mouse clicks) have been proved useful in evaluating the usability of web sites by analysing the data tracked for hundreds of users. In order to study if the potential of logs of user interaction can be applied in the study of Mental Workload in Web design, an online experiment with 145 participants was performed. Additionally, the experiment, composed of alternative interfaces, sought to assess the role of Mental Workload in the evaluation of interfaces using interactive Infographics, which were identified by literature as bringing new challenges and concerns in the field of Web Design. The online experiment’s results suggested that correlations between mental demands and users’ interaction can only be observed when taking in consideration the web interface used or the profile of the users. Moreover, the used measurement methods for assessing Mental Workload were not capable of predicting task performance, as previous research suggested (in the context of other types of web interfaces)

Syntax-directed Interpretation Of Visual Languages

Recent trends suggest that it will soon be practical to implement graphical user interfaces wherein a large part of the communication between human and computer will take the form of structured graphics, i.e., diagrams, notations, etc., which have come to be called visual languages in the literature. This thesis argues that implementation of such interfaces will be greatly facilitated by the development and use of syntax-directed translation methods for visual languages, and the embodiment of such methods in automated tools for application development, as has been done for compilers. An algebraic formalism to express syntax and semantics for visual languages is developed, and compared with similar formalisms developed by others. Tractability and algorithms for parsing are considered, and test implementations described. Several examples are presented, showing how real notations may be captured and parsed using the formalism. The design of interactive, visual language based application programs is considered in some detail, with emphasis on notations such as directed graph diagrams