... DOI: 10.1080/10407410903058229 Lin Ye a ... In Experiment 1, participants were presented with... more ... DOI: 10.1080/10407410903058229 Lin Ye a ... In Experiment 1, participants were presented with collections of artifacts, such that one third had only the Affordance 1 (O AFF 1 , eg, scoop-with), another third had only Affordance 2 (O AFF 2 , eg, pierce-with), and the remaining ...
Advances in library administration and organization, Nov 20, 2006
ABSTRACT Cognitive work analysis (CWA) is a method of understanding and documenting the constrain... more ABSTRACT Cognitive work analysis (CWA) is a method of understanding and documenting the constraints inherent in a work domain, irrespective of the actions undertaken within the work domain and the actors who undertake them. The keystone of CWA is the abstraction–decomposition space (ADS), which provides a constraint-based overview of the system. CWA has been successfully applied in a variety of settings to create tools that make the underlying goals and constraints of the system more apparent, and allow a worker the flexibility to perform his or her job in a manner appropriate to the current conditions, without being restricted to a particular task flow. In the current study, semistructured protocol analysis was conducted with six research librarians in order to create an ADS representing the information research work domain. The resulting ADS was reviewed with the participants, who confirmed its accuracy. Insight provided by the ADS regarding the work domain of research librarians is discussed, as are implications for tools to support information research.
The purpose of this study was to show the constraints that demarcate right and left areas in desi... more The purpose of this study was to show the constraints that demarcate right and left areas in designing a performance-based workstation. As a part of the larger project, the current experiment was designed to determine the directional location at which people change from using their right hand to using their left hand when reaching for a pen to write their
Geometric models of normal working area have been derived from analyses of theoretically possible... more Geometric models of normal working area have been derived from analyses of theoretically possible, but contrived and restrictive arm and hand movements (Farley, 1955; Squire, 1959; Wang et al., 1999). It is unclear whether the resulting boundaries delimit a safe, comfortable and effective reach area. The goal of the current investigation was to obtain data that can establish reach boundaries that reflect actions that are both comfortable and efficient. Adults reached for objects placed in various directions and distances in front of them. The type of reach action used to pick up the object was categorized in an effort to demarcate reach envelopes for different reach actions and identify the directional location in the workspace at which people change from reaching with their right hand to using their left hand. These data showed that people's reach actions violated important characteristics of the geometric models, including the spatial symmetry in the use of the right and left hands. From these data we are able to construct “performance-based” models of workspace area.
... DOI: 10.1080/10407410903058229 Lin Ye a ... In Experiment 1, participants were presented with... more ... DOI: 10.1080/10407410903058229 Lin Ye a ... In Experiment 1, participants were presented with collections of artifacts, such that one third had only the Affordance 1 (O AFF 1 , eg, scoop-with), another third had only Affordance 2 (O AFF 2 , eg, pierce-with), and the remaining ...
Advances in library administration and organization, Nov 20, 2006
ABSTRACT Cognitive work analysis (CWA) is a method of understanding and documenting the constrain... more ABSTRACT Cognitive work analysis (CWA) is a method of understanding and documenting the constraints inherent in a work domain, irrespective of the actions undertaken within the work domain and the actors who undertake them. The keystone of CWA is the abstraction–decomposition space (ADS), which provides a constraint-based overview of the system. CWA has been successfully applied in a variety of settings to create tools that make the underlying goals and constraints of the system more apparent, and allow a worker the flexibility to perform his or her job in a manner appropriate to the current conditions, without being restricted to a particular task flow. In the current study, semistructured protocol analysis was conducted with six research librarians in order to create an ADS representing the information research work domain. The resulting ADS was reviewed with the participants, who confirmed its accuracy. Insight provided by the ADS regarding the work domain of research librarians is discussed, as are implications for tools to support information research.
The purpose of this study was to show the constraints that demarcate right and left areas in desi... more The purpose of this study was to show the constraints that demarcate right and left areas in designing a performance-based workstation. As a part of the larger project, the current experiment was designed to determine the directional location at which people change from using their right hand to using their left hand when reaching for a pen to write their
Geometric models of normal working area have been derived from analyses of theoretically possible... more Geometric models of normal working area have been derived from analyses of theoretically possible, but contrived and restrictive arm and hand movements (Farley, 1955; Squire, 1959; Wang et al., 1999). It is unclear whether the resulting boundaries delimit a safe, comfortable and effective reach area. The goal of the current investigation was to obtain data that can establish reach boundaries that reflect actions that are both comfortable and efficient. Adults reached for objects placed in various directions and distances in front of them. The type of reach action used to pick up the object was categorized in an effort to demarcate reach envelopes for different reach actions and identify the directional location in the workspace at which people change from reaching with their right hand to using their left hand. These data showed that people's reach actions violated important characteristics of the geometric models, including the spatial symmetry in the use of the right and left hands. From these data we are able to construct “performance-based” models of workspace area.
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