Search results for "tietojärjestelmät"

Yield measurements at IGISOL with a digital data acquisition system

2017

A new digital data acquisition system has been installed at the IGISOL facility at the department of Physics in University of Jyväskylä in November, 2016. The technical details of the hardware and software of this new system are presented in this thesis. Nutaq VHS-ADC digital data acquisition system includes an analogue to digital converter (ADC) crate board, an offset unit box, an acquisition host PC, and a storage drive. This system consists of 8 channels, has the capability of 105 MSPS with 14-bit ADCs on 6U cPCI (PXI compatible). Radioactive sources, beta-gamma matrix, gamma-gamma matrix, beta-delayed gamma, and gamma-delayed gamma spectra of radioactive isotopes produced at IGISOL were…

Education Leads to a More Physically Active Lifestyle : Evidence Based on Mendelian Randomization

2019

Physical inactivity is a major health risk worldwide. Observational studies suggest that higher education is positively related to physical activity, but it is not clear whether this relationship constitutes a causal effect. Using participants (N = 1651) drawn from the Cardiovascular Risk in Young Finns Study linked to nationwide administrative data from Statistics Finland, this study examined whether educational attainment, measured by years of education, is related to adulthood physical activity in terms of overall physical activity, weekly hours of intensive activity, total steps per day, and aerobic steps per day. We employed ordinary least squares (OLS) models and extended the analysis…

Information systems development in developing countries : risk management and sustainability analysis in Nigerian software companies

2002

The expectations of IT for socio-economic and human development in developing countries have been high, but the real benefits and the positive impacts have been somewhat disappointing. The harsh socio-economic and infrastructural context makes the sustainability of an IS a major issue. Technology transfer to Africa has been too dependent on external factors, like international aid donors, and emphasized on technology itself. There is a need for locally developed, appropriate information systems, which are based on local needs and structures. In addition, the development should be done by using appropriate methods in an African context. This thesis is part of the INDEHELA-Methods project, wh…

Business intelligence : muutoksen paradigma johdon laskentataoimessa

2012

Tämän tutkimuksen tarkoituksena on selvittää sitä, millainen osa Business Intelligencellä (BI) nykypäivän muuttuvassa laskentatoimessa ja nimenomaan johdon laskentatoimessa. Tutkimuksessa haetaan vastausta siihen, miten BI:n voidaan olettaa muuttavan johdon laskentatoimen tehtäviä sekä johdon laskentatoimen ammattialaisen työtä. Tutkimuskysymykseen haetaan vastausta analysoimalla viiden BI–alan suurimman palveluntarjoajan markkinointiaineistoa. Hankittua markkinointimateriaalia tutkittiin sisällönanalyysin avulla. Aineiston jäsentelyä varten muodostettiin kaksi matriisia joiden avulla jäsenneltiin myös tutkimuksen tulokset. Toinen matriisi käsitteli johdon laskentatoimen tehtäviä ja BI:n ma…

Information Systems Students’ Impressions on Learning Modeling Enterprise Architectures

2020

This Full Research Paper presents enterprise architecture (EA) modeling tools utilized in an educational context. EA is a well-known and a commonly used approach for organizational development aiming to improve the alignment of business operations and information technology. This high level design of information technology (IT) driven business operations lays the foundations on lower level technical activities such as the design and implementation of application programs and features, system boundary interfaces, database distribution and data pipes, and system recovery. Organizations’ architectures are made visible by creating EA artefacts, such as business process diagrams, data models and…

Tietojärjestelmän käyttöönoton kriittiset menestystekijät logistiikkakeskuksessa : tapaustutkimus

2017

Liiketoiminta muuttuu jatkuvasti kustannustehokkaammaksi ja nopeatempoisemmaksi. Toimintoja tehostetaan ja säästöjä pyritään löytämään kaikista mahdollisista kohteista. Tietojärjestelmiä kehitetään helpottamaan ja nopeuttamaan liiketoimintaa. Yritykset investoivatkin runsaasti uusiin tietojärjestelmiin. Tietojärjestelmien ja varsinkin ERP-järjestelmien käyttöönotot ovat kuitenkin vaativia projekteja. ERP-järjestelmä on integroitu moduuleista koostuva tietojärjestelmä, joka käyttää organisaation yhteisiä tietokantoja. Kohdeyrityksessä eli keskisuuressa logistiikkakeskuksessa oli haasteita aiemman tietojärjestelmän käyttöönoton yhteydessä, joten nyt lähdettiin laatimaan ohjeistusta tulevan ER…

Empowering Migrant Workers and Labor NGOs in China : Creating a Law Searching Tool through a Design Science Approach

2018

Dual Capability EAM for Agility in Business Capability Building : A Systems Theoretical View

2021

Through two cases of IT-enabled business capability building in large enterprises, this paper elucidates how the systems theory approach can explain the enterprise architecture management (EAM) challenge to support business agility. The observation in both of these cases is that a legacy EAM approach does not adapt to a business development scenario involving agility. This leads to a study of the nature of the challenges in EAM when enabling strategic business moves involving new technologies, at the business unit level. For the type of projects as in these cases, we do not find a fitting paradigm in the EAM literature. Suggested solutions are IT bimodality, or Two Speed IT. However, its co…

Building a Maturity Model for Developing Ethically Aligned AI Systems

2021

Ethical concerns related to Artificial Intelligence (AI) equipped systems are prompting demands for ethical AI from all directions. As a response, in recent years public bodies, governments, and companies have rushed to provide guidelines and principles for how AI-based systems are designed and used ethically. We have learned, however, that high-level principles and ethical guidelines cannot be easily converted into actionable advice for industrial organizations that develop AI-based information systems. Maturity models are commonly used in software and systems development companies as a roadmap for improving the performance. We argue that they could also be applied in the context of develo…

Parallel Publishing from Converis to DSpace Using Custom Export and REST API

2018

Presentation in the CRIS 2018 conference in Umeå, Sweden, June 14 - 16, 2018