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Axelsson, Lars-Erik
Publications (4 of 4) Show all publications
Axelsson, L.-E. (2006). Identify User Profiles in Information Systems with Unknown Users: A database modelling approach. International Journal of Public Information Systems
Open this publication in new window or tab >>Identify User Profiles in Information Systems with Unknown Users: A database modelling approach
2006 (English)In: International Journal of Public Information SystemsArticle in journal (Refereed)
Abstract [en]

Most traditional models for system development presuppose that users of the system are known and possible to communicate with. If this is not achievable traditional design methods are less usable in order to analyze and describe the requirements of the users. This paper proposes to complement view design with ideas based on interaction design and semiotics and aims to describe the requirements and wishes of potential and unknown users in information systems supported by image or multimedia databases. In the paper the activity steps of view modelling are brought together with persona techniques from interaction design. The outcome of the proposed method reduces the amount of work considerably and, in addition, reduces the problems associated with involving users in the design process. In addition it forms the basis for the specification of a more informative study to increase the acceptability of databases in public environments

Keywords
Database design, user requirement, user profile, personas, unknown users, image database, multimedia database, public database, semiotic
National Category
Information Systems
Research subject
Information Systems
Identifiers
urn:nbn:se:kau:diva-20146 (URN)
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2018-01-11
Axelsson, L.-E. (2003). Conceptual Modelling for Creating Multimedia Databases. In: Robert Burnett, Anna Brunstrom & Anders G. Nilsson (Ed.), Perspectives on Multimedia: Communication, Media and Information Technology (pp. 125-144). New York: John Wiley & Sons
Open this publication in new window or tab >>Conceptual Modelling for Creating Multimedia Databases
2003 (English)In: Perspectives on Multimedia: Communication, Media and Information Technology / [ed] Robert Burnett, Anna Brunstrom & Anders G. Nilsson, New York: John Wiley & Sons, 2003, p. 125-144Chapter in book (Refereed)
Abstract [en]

The purpose of this chapter is to expose and explain some problems on conceptual modelling in multimedia databases. By way of introduction after a short orientation of the problem a description is made of the idea of conceptual modelling starting from the ISO report of van Griethuysen (1987) where some fundamental concepts and definitions is considered. A discussion is carried out considering the modelling techniques and their capability and/or limitations concerning modelling environments in order to create multimedia databases. The discussion indicates that the general concepts and definitions in conceptual modelling suggested in the ISO report comprises the foundation to analyse more complex information such as multimedia contexts. The paper also proposes that the interactivity, communication (especially the pragmatic and semantic layers of communication) and information of information are all key factors in the process of understanding how conceptual modelling can support multimedia databases

Place, publisher, year, edition, pages
New York: John Wiley & Sons, 2003
National Category
Information Systems
Research subject
Information Systems
Identifiers
urn:nbn:se:kau:diva-17800 (URN)0470868635 (ISBN)
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2018-01-11Bibliographically approved
Axelsson, L.-E. (2001). Conceptual modelling of multimedia databases - is it possible?. In: On Methods for Systems Development in Professional Organisations: The Karlstad University Approach to Information Systems and its Role in Society (pp. 186-207). Lund: Studentlitteratur
Open this publication in new window or tab >>Conceptual modelling of multimedia databases - is it possible?
2001 (English)In: On Methods for Systems Development in Professional Organisations: The Karlstad University Approach to Information Systems and its Role in Society, Lund: Studentlitteratur, 2001, p. 186-207Chapter in book (Refereed)
Abstract [en]

The best - or possibly only - way to model data bases is to use conceptual modelling. This is true for traditional data bases, but does it also apply to data bases where information from various data sources is stored? Is it reasonable to work with the concepts objects, variables and relations when modelling user views of images, sounds or video data, separately or in combination? Is it even possible to adopt a conceptual approach to experiences of pictures or pieces of music? What happens when we move outside the traditional application areas of the model? Does the method provide an opportunity to model more unstructured and complex information? This chapter conducts a line of reasoning about some consequences of using conceptual modelling in the design of multimedia data bases. This study is explorative and part of a research work

Place, publisher, year, edition, pages
Lund: Studentlitteratur, 2001
National Category
Information Systems
Research subject
Information Systems
Identifiers
urn:nbn:se:kau:diva-17801 (URN)91-44-01723-5 (ISBN)
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2018-01-11Bibliographically approved
Axelsson, L.-E. (2000). Konceptuell modellering av multimediadatabaser-går det?. Lund: Studentlitteratur
Open this publication in new window or tab >>Konceptuell modellering av multimediadatabaser-går det?
2000 (Swedish)Chapter in book (Refereed)
Abstract [sv]

Databaser modelleras bäst - eller möjligen endast - med användning av konceptuell modellering. Detta är en sanning för traditionella databaser. Men gäller det också för databaser som lagrar information från olika datakällor? Är det rimligt att arbeta med begreppen objekt, variabler och relationer när vi skall modellera användarnas syn på bilder, ljud, eller videodata var för sig eller tillsammans? Kan vi dessutom överhuvudtaget anlägga en konceptuell syn på upplevelser av en bild eller ett musikstycke? Vad händer när vi kommer utanför modellens traditionella användningsområden? Ger metoden en möjlighet att även modellera mer ostrukturerad och sammansatt information? Detta kapitel för ett resonemang om några konsekvenser som blir följden av att använda konceptuell modellering vid design av multimediadatabaser. Studien är explorativ och är en del av ett forskningsarbete

Place, publisher, year, edition, pages
Lund: Studentlitteratur, 2000
National Category
Information Systems
Research subject
Information Systems
Identifiers
urn:nbn:se:kau:diva-20790 (URN)
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2018-01-11
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