Search results for "kokonaisarkkitehtuuri"
showing 10 items of 50 documents
Method Framework for Developing Enterprise Architecture Security Principles
2019
Organizations need to consider many facets of information security in their daily operations – among others, the rapidly increasing use of IT, emerging technologies and digitalization of organizations’ core resources provoke new threats that can be difficult to anticipate. It has been argued that the security and privacy considerations should be embedded in all the areas of organizational activities instead of only relying technical security mechanisms provided by the underlying systems and software. Enterprise Architecture Management (EAM) offers a holistic approach for managing different dimensions of an organization, and can be conceived as a coherent and consistent set of principles tha…
EA Planning, Development and Management Process for Agile Enterprise Development
2005
In this study, we suggest an enterprise architecture (EA) development process model suitable for EA projects limited in scope and time. Several EA process models have been put forward, which have in common the idea of comprehensive EA management and development that is generic, cyclic and ongoing in a user organization. The suggested models are of varying level of abstraction. It is not simple to select the right issues from them for a restricted development effort. An ICT services provider needs a process model to follow in EA consulting and development projects. This approach is also needed for incremental EA development by user organizations. Starting with the suggested EA process models…
Applying Genre-Based Ontologies to Enterprise Architecture
2007
This paper elaborates the approach of using ontologies as a conceptual base for enterprise architecture (EA) descriptions. The method focuses on recognising and modelling business critical information concepts, their content, and semantics used to operate the business. Communication genres and open and semi-structured information need interviews are used as a domain analysis method. Ontologies aim to explicate the results of domain analysis and to provide a common reference model for Business Information Architecture (BIA) descriptions. The results are generalised to model further aspects of EA. peerReviewed
Enterprise Architecture Descriptions for Enhancing Local Government Transformation and Coherency Management
2011
Local governments cover multiple service sectors and are typically organized into diversified, deeply hierarchical organizations. Public services offered are tangible, mostly non-IT-critical, and heavily dependent on human resources. Information management is mainly manual in strategy and management processes. In this case study of a large Finnish local government organization, enterprise architecture (EA) is proposed as a tool for improving the coherency of the local government and its alignment to IT and other resources. We ask, what kind of EA descriptions local government agencies need for coherency management, and how to organize them. We apply action design research principles at the …
Towards Ecosystemic Stance in Finnish Public Sector Enterprise Architecture
2019
Governments and organizations in both public and private sector are operating in fields of ever-growing uncertainty and complexity. To study this complex environment, the concept of ecosystems has been suggested, interpreting organizations as intertwined systems among layers of evolving ecosystems. While offering possibilities, operating in an ecosystemic environment might prove to be challenging, and the change from traditional governance structures might be difficult to manage, requiring holistic yet detailed view. Enterprise Architecture (EA) has been an interest of academics and practitioners for few decades, offering one of the most prominent solutions to managing complex organizations…
Evaluation of Enterprise IT Architecture Solutions – How can an ICT consultant tell what is best for you?
2003
ICT has become a key business enabler and a competitive factor for enterprises. Enterprise architecture, developed by ICT consultants and ICT end-user organizations, is emerging as the management tool for intertwined business and IT planning. For managerial decisions, there is a need to evaluate the business value of architecture development results, but only a few models for this have so far been presented. Here we present the V-model for EA testing and validation that marks the evaluation points in EA management, and guides which evaluation tools could be used. peerReviewed
The long and winding road of enterprise architecture implementation in the Finnish public sector
2018
This thesis examines the implementation of enterprise architecture (EA) in the Finnish public sector. EA is a systematic approach for analysing, visualising, developing and governing the functions and structures of organisations. It describes how organisations businesses, information and systems function as a whole. Research and practice have shown the implementation of EA is challenging and slow to advance. Finland provides a prolific area for research since the use of EA is mandatory in public sector, which is rare amongst countries taking a whole-of-government EA approach. In order to research EA as a method for systemic change, a suitable theoretical framing was necessary. The context, …
Combining Social Service and Healthcare as the First Country in the World : Exploring the Impacts on Information Systems
2018
The Finnish government has decided to implement a reform in the social and healthcare system by combining the two in the future. There are several drivers for this change that have been identified. Large number of information systems that are not interoperable, challenges in data management and isolated service offering are the most significant ones. In the government’s strategy for the future the digitalisation will provide tools to solve these challenges. In this paper the landscape is outlined and the architecture choices are discussed. The enterprise architecture is applied for the largest county comprising of over 1900 social service and healthcare related information systems. The targ…
Exploring the Critical Success Factors in Social and Health Care Information Systems Project Procurement
2020
A welfare reform involving the mixing of social and health services is being introduced by the Finnish government. Several factors have been identified for this shift, the most relevant of which is that many information systems are not interoperable and data-related problems have been identified. Management and isolated offers of service. Digitalizing to solve these issues is part of the government’s policy. This paper outlines the change landscape and explores the architectural options of the proposed digitalisation process and crucial success factors. The Undertaking The design is applied to the largest county, which consists of over 1,900 information systems related to social support and…
Tietoarkkitehtuurin kehittäminen : case Jyväskylän kaupunki
2013
Tämä pro gradu -tutkielma keskittyy tietoarkkitehtuuriin ja sen kehittämiseen. Tutkielma koostuu kahdesta osiosta: kirjallisuuskatsauksesta sekä tapaustutkimuksesta. Kirjallisuuskatsauksessa esitellään kokonais- ja tietoarkkitehtuuria ja perustellaan tietoarkkitehtuurin merkityksiä ja hyötyjä. Tämän jälkeen käydään läpi yleisiä kokonaisarkkitehtuurin viitekehyksiä ja niiden sisältämiä suosituksia, jonka jälkeen esitellään eri viitekehyksien suosittelemia tietoarkkitehtuurikuvauksia. Tietoarkkitehtuurin kehittämisen luvussa esitetään lähestymistapoja, joiden avulla voidaan organisaation tietoja luokitella ja tunnistaa. Näiden lisäksi tarkastellaan organisaation ydintietoja ja sen rakenteita,…