Task difficulty across different macro-genres continues to remain among less attended areas in second language development studies. This study examined the correlation between task difficulty across the descriptive, narrative, argumentative, and expository macro-genres. The three components of task difficulty (i.e., code complexity, cognitive complexity, and communicative stress) were also comp...

An important class of scientific and engineering workflows, e.g. those used for uncertainty quantification, design optimization and parametric studies, naturally map onto the Many-Task Computing (MTC) paradigm. However, what distinguishes these workloads is a unique combination of dynamically changing resource requirements and very large computational and throughput demands. Such workflows can ...

abstract aim and background: the present research studied episodic and semantic memory in quran memories and non- quran memories among girl students. methods and materials: research design was based on semi-experimental design. this study included 180 quran memories, beginner and non quran memories among girl students in 3 educational grades: primary, secondary and high school were chosen by cl...

Color is commonly used in data visualization in order to convey a wide variety of types of information: metric values, pattern, extrema, emphasis, and others. A distressingly large percentage of these visualizations appear to use the default color scale for the visualization package used to create them. While sometimes this is an appropriate choice, careful consideration of the implications of ...

Design problems manifest themselves in many ways. Before anything resembling a true “science of design” can emerge, tools for classifying the design task must be developed. One such tool involves the task complexity construct, which comes in three distinct forms: objective complexity, problem space complexity and lack of structure. These forms, which can appear individually or in combination, e...

This chapter describes a framework for cognitive task design that focuses on social and communication issues. It is intended to complement the more traditional task oriented views. The chapter starts by describing a process model for cognitive task design then introduces cognitive and social pathologies: heuristics for analysing potential causes of failure in sociotechnical systems. This is fol...

Peter Johnson & Stephanie Wilson HCI Laboratory, Department of Computer Science Queen Mary and Westfield College, University of London Mile End Road, London E1 4NS Tel.: +44 71 975 5224 Email: pete, [email protected] In the fictional country of Erehwon [1], Samuel Butler (1883) described a society in which people service the needs of machines rather than machines serving the needs of people a...

1. Introduction HCI research and design practice has long recognized that interactive systems are useless if they do not support users in performing their work tasks. To this end, the representation and modeling of users' task knowledge is a major concern. In particular, a key concern is how to make informed design decisions based upon that knowledge and how to predict the effects of design sol...

Task-based language teaching, which requires learners to transact tasks resembling their real life language needs, demands language learners to perform planning at different stages of their learning. Since various types of tasks can be used in task-based instruction, the present study examined the effect of task types and various participatory structures during pre-task planning on the quality ...