Search results for "Information System"
showing 10 items of 2404 documents
The integration of information technologies in the knowledge based organizations
2016
Relations between the users' expertise, complexity of tasks to be solved by knowledge-based organizations and mission of smart information systems, is a multi-dimensional structure that should provide the necessary conceptual framework of sustainable integrated smart development. The users of smart information systems face a variety of problems, such as: system access, data recovery, identifying and retrieving a specific document and its contents, and difficulties associated with understanding and interpreting of the used system on stages and methods following to be used, respectively problems on understanding the meaning of information provided. Using smart information systems and smart da…
An analysis of ego network communities and temporal a affinity for online social networks
2017
The wide diffusion of Online Social Networks (OSNs) presents several advantages, like the definition of simple tools for information sharing and spreading. However, OSNs present also some drawbacks, one of the most important one is the problem of privacy disclosures. Distributed Online Social Networks (DOSNs), which decentralize the control of the social network, have been recently proposed to overcome these issues. The decentralization of the control has issued several challenges, one of the main ones is guaranteeing data availability without relying on a central server. To define users’ data allocation strategies, the knowledge of the structure of the ego network and of the user’ temporal…
A framework for PACS development in cardiology
2003
The authors develop a framework for the integration of cardiology into hospitalwide picture archiving and communication systems (PACSs) by the definition of user requirements in cardiology image information systems. These user requirements have to be based on the consensus of users and industry. A topdown layered scheme is proposed for the development of documents based on user requirements. The structure of committees within the European Society of Cardiology that are working in this field is discussed. >
Preventing Overlaps in Agglomerative Hierarchical Conceptual Clustering
2020
Hierarchical Clustering is an unsupervised learning task, whi-ch seeks to build a set of clusters ordered by the inclusion relation. It is usually assumed that the result is a tree-like structure with no overlapping clusters, i.e., where clusters are either disjoint or nested. In Hierarchical Conceptual Clustering (HCC), each cluster is provided with a conceptual description which belongs to a predefined set called the pattern language. Depending on the application domain, the elements in the pattern language can be of different nature: logical formulas, graphs, tests on the attributes, etc. In this paper, we tackle the issue of overlapping concepts in the agglomerative approach of HCC. We …
Conceptual evaluation of methods for engineering situational ISD methods
2006
In the past decades a large variety of techniques and methods have been introduced for software engineering (SE) and information system development (ISD). Despite this plurality, there is a need in organizations and projects to customize methods that match with their specific needs. Method engineering (ME) is the process by which a situational method is developed, customized and configured. ME work has appeared to be difficult and burdensome to carry out in practice. One reason for this is a lack of adequate methodical support. In this article, we profile and evaluate conceptually, using a contextual framework as a basis, seven comprehensive ME artifacts (i.e. techniques, procedures and met…
Wartość informacji w systemie informacyjnym w ocenie jej jakości
2018
The purpose of the article is to determine to what extent and how to evaluate the value of information available in the information system when assessing its quality. Such an evaluation, especially for systems operating on the Internet, is absolutely necessary because of the constant and rapid growth of the information resources available there, bearing the unnecessary economic costs of their poor quality and related to that negative social phenomena. The quality of information is a multidimensional category and requires evaluation of great number of different attributes. Are there among conceptual models for evaluating the quality of information also such that require evaluating the value …
eParticipation:Designing and Managing Political Discussion Forums
2010
Author's version of an article published in Social Science Computer Review, 2010, 28 (4), 403-426. Also available from the publisher: http://dx.doi.org/10.1177/0894439309341626 eParticipation is the extension and transformation of participation in political deliberation and decision-making processes through information and communication technologies (ICTs). The most commonly found examples of eParticipation systems are political discussion forums. Although much of the discussion of these technologies is conducted in the eGovernment and eDemocracy literature, political discussion forums present a distinct set of design and management challenges, which relate directly to information systems c…
Methods for defining user groups and user-adjusted information structures
1999
A common problem in the design of information systems is how to structure the information in a way that is most useful to different groups of users. This paper describes some statistical methods for revealing the structure inherent in empirical data elicited from users. It is illustrated by the application of these methods to the design of some web pages giving information about the Universitat de Valencia. Three potential user groups were identified, administrative staff, teaching staff and students. The first analysis demonstrated that users within these three groups assign relatively homogeneous structures, but that the structures assigned by the three groups are not the same, and also, …
ASR in Classroom Today : Automatic Visualization of Conceptual Network in Science Classrooms
2017
Automatic Speech Recognition (ASR) field has improved substantially in the last years. We are in a point never saw before, where we can apply such algorithms in non-ideal conditions such as real classrooms. In these scenarios it is still not possible to reach perfect recognition rates, however we can already take advantage of these improvements. This paper shows preliminary results using ASR in Chilean and Finnish middle and high school to automatically provide teachers a visualization of the structure of concepts present in their discourse in science classrooms. These visualizations are conceptual networks that relate key concepts used by the teacher. This is an interesting tool that gives…
An Information Systems Design Theory for Integrated Requirements and Release Management Systems
2009
High-tech companies need to collect and analy- ze requirements and allocate them to appropriate product releases in market-driven product development. Develop- ment activities are typically scattered across multiple sites and involve multiple partners in different countries, complicating requirements and release management. Fle- xible, scalable, and secure groupware-based support for the activities provides substantial payoffs. Yet, the extant literature provides little theoretical guidance for designing and using requirements and release management systems in multi-site, multi-partner environments. This article de- velops the meta-requirements and a meta-design of an Information Systems De…