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Pejtersen, A.M.: Design of a classification scheme for fiction based on an analysis of actual user-librarian communication, and use of the scheme for control of librarians' search strategies (1980)
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Pejtersen, A.M.: ¬A library system for information retrieval based on a cognitive task analysis and supported by a icon-based interface (1989)
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Pejtersen, A.M.: Bogautomaten i Hjortespring (1988)
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Austin, J.; Pejtersen, A.M.: Fiction retrieval: experimental design and evaluation of a search system based on user's value criteria. Pt.1 (1983)
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Pejtersen, A.M.: Design of a computer-aided user-system dialogue based on an analysis of users' search behaviour (1984)
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Pejtersen, A.M.: Implications of users' value perception for the design of a bibliographic retrieval system (1986)
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Austin, J.; Pejtersen, A.M.: Fiction retrieval : experimental design and evaluation of a search system based on user's value criteria. Pt.2 (1984)
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Pejtersen, A.M.: Fiction and library classification (1978)
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Pejtersen, A.M.: ¬The meaning of "about" in fiction indexing and retrieval (1979)
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Albrechtsen, H.; Pejtersen, A.M.: Cognitive work analysis and work centered design of classification schemes (2003)
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- Abstract
- Work centered design of classification schemes is an emerging area of research which poses particular challenges to domain analysis and scheme construction. A key challenge in work centered design of classification schemes is the evolving semantics of work. This article introduces a work centered approach to the design of classification schemes, based an the framework of cognitive work analysis. We launch collaborative task situations as a new unit of analysis for capturing evolving semantic structures in work domains. An example case from a cognitive work analysis of three national film research archives illustrates the application of the framework for identifying actors' needs for a classification scheme to support collaborative knowledge integration. It is concluded that a main contribution of the new approach is support for empirical analysis and overall design of classification schemes that can serve as material interfaces for actors' negotiations and integration of knowledge perspectives during collaborative work.
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Morehead, D.R.; Pejtersen, A.M.; Rouse, W.B.: ¬The value of information and computer-aided information seeking : problem formulation and application to fiction retrieval (1984)
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- Abstract
- Issues concerning the formulation and application of a model of how humans value information are examined. Formulation of a value function is based on research from modelling, value assessment, human information seeking behavior, and human decision making. The proposed function is incorporated into a computer-based fiction retrieval system and evaluated using data from nine searches. Evaluation is based on the ability of an individual's value function to discriminate among novels selected, rejected, and not considered. The results are discussed in terms of both formulation and utilization of a value function as well as the implications for extending the proposed formulation to other information seeking environments
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Pejtersen, A.M.: Cognitive engineering : field analysis and information retrieval systems (1996)
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- Abstract
- This paper presents a framework for design of work support systems for modern, dynamic work environemnt in which stable work procedures are replaced with discretionary tasks and many action possibilities are available to the user. In this situation, classic task analysis is less effective and a framework is therefore presented for work analysis, separating a representation of the work domain, its means and ends, its relational structure, and the effective task strategies among which the user may choose, from a representation of the users' general background, resources, cognitive style and subjective preferences. The aim is to design systems for information seeking in complex work domains characterized by rapid changes in users' information needs that leave the freedom open to a user to choose a task strategy that suites the user in the particular situation. An important feature of this approach is a human-work interface with a transparent presentation of the action possibilities and functional/intentional boundaries of the work domain relevant for typical task situations and user categories. This is illustrated by examples from 2 different domains that merge the cognitive engineering approach with information science disciplines: the library domain, and information seeking in the engineering design domain using the Internet
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Pejtersen, A.M.; Albrechtsen, H.: Ecological work based classification schemes (2000)
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- Abstract
- This paper introduces a new approach to the design of classification schemes for complex work domains to help structure the knowledge domains in databases for single users and multiple users in co-operative work. Ecological work based classification schemes are designed on the basis of an empirical analysis of the invariant structures of the work domain and of the information needs of its actors. Invariant structures of a work domain can be explicit or implicit (hidden structures). The invariant structures are identified through empirical analysis of field studies in work domains, guided by the use of a means ends abstraction hierarchy. This hierarchy provides a model for analyzing, or-ganizing and relating different levels of properties within a work domain. The resulting structure is an ecological classification scheme, comprising the different dimensions or categories of domain information that needs to be available for an actor to make a decision. Contrary to traditional classification systems which usually are designed from one particular point of view (a single discipline, paradigm or purpose), ecological classification schemes provide a transparent and structured information environment in which actors can navigate freely according to their current perspectives of work and subjective preferences
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Pejtersen, A.M.: ¬A framework for indexing and representation of information based on work domain analysis : a fiction classification example (1994)
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- Abstract
- Information retrieval and exploration of work domains through databases and integrated information systems has become increasingly important in many modern work settings (as well as in libraries). The problem space of the users is defined on occasion by the dynamically changing requirements from their tasks and goals. it is argued that IR system design should be based on an analysis of the properties of the work domain, the task situation and the user characteristics. The paper describes a general framework for IR system design that has been used in the design of a library system. A special problem identified from use of the framework in domain analysis of fiction retrieval is treated in more detail: mapping the authors' domain structures to the domain structures expressed in users' needs in indexing and representation of fiction
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Pejtersen, A.M.: ¬A new approach to the classification of fiction (1982)
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Pejtersen, A.M.: Investigation of search strategies in fiction based on an analysis of 134 user-librarian conversations (1979)
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Pejtersen, A.M.: Search strategies and database design (1988)
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Pejtersen, A.M.: Cognitive engineering in information retrieval domains : merging paradigms? (1995)
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Pejtersen, A.M.; Rasmussen, J.R.: Intelligent systems for information retrieval and decision support in complex work domains (1990)
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Pejtersen, A.M.: New model for multimedia interface to online public access catalogues (1992)
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- Abstract
- The Book House is an interactive, multimedia, online public access catalogue designed to support casual, novice users in information retrieval. It uses icons, text and animation in the display interface in order to enhance the utility of the system. A prerequisite for the design of The Book House was a cognitive analysis of users' information needs and search queries. The paper describes The BookHouse and discusses its relevance as a solution to the current OPAC developments
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