Peter Bellström

Karlstads Universitet · Karlstads Business School

Given the burdensome disease, cancer, and the challenges presented by limited resources to deal with it, the field of oncology looks to artificial intelligence (AI) as a potential help. This exploratory study seeks to understand the AI implementation process, and to understand the barriers and facilitators to AI adoption. Semi-structured interviews...

In this paper, we identify, analyze and propose generic requirements for software aiming at supporting crisis management training in local governments. The study builds on a Swedish-Norwegian R&D project based on a quadruple helix model. A design science approach was applied and the artifact presented in this paper is a list of generic requirements...

The ongoing digital transformation in government has enabled innovative changes in operational processes and service. However, while e-services and social media are widely adopted, earlier studies indicate that this transformation is still being awaited in other areas, such as crisis or disaster preparedness. Recent events such as the 2018 wildfire...

In this paper we analyze and present the generic requirements identified for a software aiming at supporting crisis management training in local governments. The generic requirements are divided into overall requirements, requirements connected to the trainer’s role and requirements connected to the trainee’s role. Moreover, the requirements are ma...

Purpose To fully grasp the potential of using social media, one must know what governments and citizens are communicating in these media. Despite much statistics published, there is a dearth of research analyzing information content in detail. The purpose of this paper is to identify the kind of information exchange that occurs between a local gov...

Social media is making its way into government agencies as a medium for citizen communication. A recent survey suggests that almost half of the population in Sweden uses Facebook. Consequently, government agencies such as municipalities have started adopting Facebook to ‘be where the users are’. Facebook offers new opportunities for rapid dissemina...

In this paper we analyze and discuss schema quality in the schema integration process. In doing so, we apply a framework for evaluating the quality of a conceptual schema (e.g. conceptual database schema). In our analysis we combine quality factors and quality metrics with the schema integration process, which is often described as having four dist...

In this paper, we address the classification dependency used to illustrate that one concept is an instance-of another concept. In doing so, we present four important aspects of the classification dependency in the integration of implementation-neutral Karlstad Enterprise Modelling schemata. First and second, the classification dependency can be use...

Predesign schemata are an attempt to overcome the communication gap between end users and computer scientists in software development. We argue that by presenting facilitated models to the users, schema interpretation is made easier. The predesign principle is also helpful in areas such as software documentation. Our uses of predesign models share...

Schema integration is a very complex task in which several schemata are merged into one global conceptual schema. Due to its complexity, computer-based applications and tools are needed that support and automate parts of the integration process. In our previous work, we have shown that schema integration on the predesign level allows for lower sche...

In this paper, we address the recognition of similarities and differences in schema integration while applying the notation in the Karlstad Enterprise Modeling approach. In doing so, we describe and present a set of “if -then” rules. In these rules, we make use of both concept name comparison and comparison of concept neighborhoods (their surroundi...

In this paper we address the importance of visualizing in programming education. In doing so, we describe three contributions to the research field. First we describe an initial study on visualizing the Bubble Sort algorithm. The Bubble Sort algorithm has been chosen since it contains several parts that in the past have been troublesome for several...

In this chapter we describe a pilot survey on applying problem-based learning (PBL) in an undergraduate programming course. During the course the students have applied PBL as a complement to traditional teaching and learning techniques. The PBL problem in this survey combines both knowledge about programming and knowledge about databases. We argue...

In the early phases of the software development process we generally deal with systems requirements that are gathered from various sources. These requirements can be represented in the form of structural and behavioral schemata. But heterogeneous system requirements frequently contain conflicts and overlap. Requirements schema integration is theref...

A well-known difficulty when teaching and learning programming is the diverse educational background of IT students. In this paper we argue that a central factor agitating this problem is the tradition of teaching programming using a syntax perspective: Between the initial step of learning syntax, and the end step of achieving practical application...

View and schema integration are two very complex tasks in which several views and/or schemata are merged into one global conceptual schema. Due to its complexity, computer-based applications and tools that support and automate parts of the schema integration process are needed. In this paper we propose a composite schema-based matching approach in...

Integration is a key issue in conceptual database design. However, the integration process is very complex and error prone and may often cause semantic loss. Semantic loss, in this chapter, is described as a problem that occurs if one or several concept names and/or dependencies describing the meaning of a concept are lost during the view integrati...

View and schema integration have been a research topic for approximately three decades now. Several integration approaches were developed over the time for dynamic modeling (e.g. integration of state charts, business process models, enterprise models etc.). The integration strategies of these approaches are based on language specific features of a...

The ubiquitous use of databases (DB) in information systems (IS) today is a direct result of complex and enormous amounts of data processing required in modern businesses. The complexity of the data processing requires software to support the organization in being competitive in an increasingly demanding business climate. The software must support...

In the field of information system (IS) design and modeling the topic of integrating different views and schemata to a common conceptual schema is a central issue. Integration of two schemata means that they are compared, conflicts between them are identified and resolved, and finally the schemata are merged. Integration is often based on a global...

View integration is a complex, error-prone and time-consuming task. Therefore there is a need to decompose the integration methods into smaller well defined phases where different techniques are applied. Most of the methods used today is composed of, or at least is a mixture of, the following four phases: pre-integration, comparison of the views, c...

In order to design databases and software components that are fulfilling the customers requirements, modeling languages that define them at a high level of abstraction are needed e.g. [2, 12, 15, 18]. Several modeling languages and methods have been proposed but most of them put focus on the implementation level and the technical parts of the futur...

We view the database as a part of a living language and therefore put focus on the dialectical relation between the spoken language and a database represented as a conceptual database schema. We assert that the discrepancy between the spoken language and a database needs to be addressed and minimized. We also assert that all concept names need to b...

In this paper we present a semi-automatic method for matching schema elements in the integration of structural pre-design schemata. In doing so we describe and present how element level matching (concept), structural level matching (neighborhood) and taxonomy-based matching can be combined into one workflow and method. The matching method is a comp...