113 research outputs found
Investigation of Modelling of Dynamic Business Processes
A folyamat fogalma a szervezetek Ă©s vĂĄllalkozĂĄsok mindennapi Ă©letĂ©nek alapvetĆ
eszközĂ©vĂ© vĂĄlt. SegĂt a szervezeti cĂ©lok elĂ©rĂ©sĂ©ben Ă©s meghatĂĄrozza az informĂĄciĂłs rendszerek
(IS) kezelését. Az az informåciós rendszerek kutatåsånak egyik fontos problémåja az, hogy
hogyan lehet a vĂĄllalati/szervezeti környezet, az ĂŒgyfĂ©l igĂ©nyeinek Ă©s követelmĂ©nyeinek
vĂĄltozĂĄsĂĄhoz igazĂtani, illeszteni az informĂĄciĂłs rendszerek folyamatait. Az illesztĂ©si folyamatot
mĂĄr rĂ©gen hosszĂș idĆre integrĂĄlĂłdik több terĂŒleten az adott cĂ©lok Ă©s a kĂvĂĄnt eredmĂ©nyek elĂ©rĂ©se
Ă©rdekĂ©ben. Amikor egy folyamat cĂ©lja kapcsolĂłdik a vĂĄllalat cĂ©ljaihoz, a folyamatot ĂŒzleti folyamatnak
(BP) hĂvjĂĄk .
A BP-k egymĂĄssal összefĂŒggĂ©sben vannak, tekintettle azok szerkezetĂ©re Ă©s funkciĂłira,
amelyek meghatĂĄrozzĂĄk statikus Ă©s dinamikus oldalaikat. A legtöbb kutatĂĄsi erĆfeszĂtĂ©s a statikus
BP problĂ©mĂĄkra összpontosĂtott, vagyis a folyamat szerkezetĂ©re. Azonban a mai IS-ben a BP
megvalĂłsĂtĂĄsĂĄhoz alkalmazott hagyomĂĄnyos megközelĂtĂ©s mĂĄr nem fedi le a dinamikusan vĂĄltozĂł
ĂŒzleti környezetet, amelyhez törtĂ©nĆ alkalmazkodĂĄs a vĂĄllalkozĂĄs tĂ©nyleges igĂ©nye. Emiatt ez a
Ph.D. a disszertĂĄciĂł a BP-szekkel kapcsolatos kĂ©rdĂ©seket szĂ©les körben kĂvĂĄnja lefedni, kĂŒlönös
figyelmet fordĂtva annak dinamikus aspektusĂĄra, amely egy korszerƱ Ă©s Ășj perspektĂvĂĄt vezet be
azĂ©rt, hogy szabatosan meghatĂĄrozza a javasolt megközelĂtĂ©st.
KorĂĄbbi tanulmĂĄnyok csak megemlĂtettĂ©k a folyamatok dinamikus aspektusĂĄnak fogalmĂĄt,
Ă©s nĂ©hĂĄny kapcsolĂłdĂł fogalmi terĂŒlettel foglalkoztak, anĂ©lkĂŒl, hogy pontosan definiĂĄltĂĄk volna;
ugyanannak a terĂŒletnek a kutatĂłi sem hatĂĄroztĂĄk meg a kĂŒlönbözĆ elemeket, amelyek hatĂĄssal
vannak a folyamatok dinamikus viselkedĂ©sĂ©re Ă©s folyamatok olyan összetevĆire, amelyek a BP
vĂ©grehajtĂĄsa sorĂĄn ( futĂĄsi idĆben) lĂ©nyegesek. VizsgĂĄlatunk hozzĂĄjĂĄrul a BP terĂŒletĂ©hez azĂĄltal,
hogy vilĂĄgos Ă©s ĂĄtfogĂł meghatĂĄrozĂĄst nyĂșjt a dinamikus viselkedĂ©ssel kapcsolatos fogalmakra, Ă©s
a folyamatok dinamikus aspektusĂĄt fogalmilag megragadja. Ez utĂłbbi segĂt megismerni a BP
funkcióit futås közben. Tovåbbå megvizsgåltuk az a dinamikus viselkedést befolyåsoló
tĂ©nyezĆket Ă©s azok vĂĄltozĂĄsĂĄt, valamint a vĂĄltozĂĄsok ĂĄltal Ă©rintett elemeket vagy komponenseket
is. MĂg egyes kutatĂłk a szerkezetre koncentrĂĄltak, bĂĄr elhanyagoltĂĄk azt, amikor a BP elemei
megvĂĄltoztak Ă©s hogyan mĂłdosultak. Emiatt alaposan megvizsgĂĄltuk ezt a terĂŒletet, azonosĂtottuk
azokat a kĂŒlönfĂ©le elemeket (komponenseket), amelyekre a vĂĄltozĂĄs tĂ©nyezĆi hatĂĄssal lehetnek, Ă©s
hogy a folyamat hogyan alkalmazkodik ehhez a hatĂĄshoz.
3
A BP-modellezĂ©s leĂrja a folyamat mƱködĂ©sĂ©t, Ă©s meghatĂĄrozza a BP-modell összes
tevĂ©kenysĂ©gĂ©t a megĂ©rtĂ©s Ă©rdekĂ©ben. A dolgozat taxonĂłmiĂĄt hatĂĄroz meg a meglĂ©vĆ BP modellek
negatĂv Ă©s pozitĂv tulajdonsĂĄgaira (elĆnyeire Ă©s hĂĄtrĂĄnyaira) vonatkozĂłan. Ezek a hasonlĂłsĂĄgok
segĂtettek megtalĂĄlni az ĂĄbrĂĄzolĂĄsi kĂłdokban Ă©s a funkcionalitĂĄsokban olyan szintaktikai
kĂłdelemeket, amelyek hasznosnak bizonyultak a modellek közötti ĂĄtalakĂtĂĄsokban. A modellek
közötti ĂĄtalakĂtĂĄsok terĂŒlete hatalmas terĂŒlet, Ă©s sok konverziĂłs mĂłdszert Ărtak le, de soha nem
vĂĄlasztottak az ĂĄltalunk alkalmazott modelleket (BP Execution Language (BPEL) Ă©s Finite State
Machines (FSM)), valamint (FSM Ă©s Hypergraph). A modellek közötti összehasonlĂtĂĄs a
kĂŒlönbözĆ modellek alkalmas összekapcsolĂĄsĂĄhoz Ă©s integrĂĄlĂĄsĂĄhoz is vezethet azĂ©rt, hogy
megtalĂĄljĂĄk a formĂĄlisan jĂłvĂĄ nem hagyott modellek ellenĆrzĂ©sĂ©nek mĂłdjĂĄt.
BevezettĂŒk a hipergrĂĄf koncepciĂłt e modellezĂ©si terĂŒleten, amely lehetĆvĂ© teszi a grĂĄf
algoritmusok, a lineĂĄris algebra Ă©s a legfrissebb adattudomĂĄnyi mĂłdszerek felhasznĂĄlĂĄsĂĄt. Ez az
operacionalizĂĄlt modell tĂĄmogatja a modellellenĆrzĂ©st, akkor is, amikor mĂĄr beĂ©pĂtettĂ©k a
våltozåsokat a dinamikus folyamatok futó példånyaiba. Néhåny, ezzel a koncepcióval foglalkozó
reprezentĂĄciĂłt kĂŒlönbözĆ mĂĄtrixokkal Ă©s grĂĄf ĂĄbrĂĄzolĂĄsi formĂĄkkal valĂłsĂtottunk meg. JövĆbeni
munkĂĄinkban felhasznĂĄlhatjuk a hipergrĂĄfot Ă©s annak modelljeit akĂĄr a folyamatok kĂŒlönbözĆ
modelljeinek, akĂĄr a dinamikusan megvĂĄltozott folyamatok helyessĂ©gĂ©nek ellenĆrzĂ©sĂ©re szĂĄmos
Ășj ellenĆrzĂ©si mĂłdszer vezetve be erre a terĂŒletre. MegközelĂtĂ©sĂŒnk megvalĂłsĂtĂĄsa szĂĄmos eszköz
hasznĂĄlatĂĄt segĂti a folyamat Ă©s egyes tulajdonsĂĄgok ellenĆrzĂ©sĂ©ben a hipergrĂĄf ĂĄbrĂĄzolĂĄs
kihasznĂĄlĂĄsĂĄval
Formal approach to modeling of modern Information Systems
Most recently, the concept of business documents has started to play double role. On one hand, a business document (word processing text or calculation sheet) can be used as specification tool, on the other hand the business document is an immanent constituent of business processes, thereby essential component of business Information Systems. The recent tendency is that the majority of documents and their contents within business Information Systems remain in semi-structured format and a lesser part of documents is transformed into schemas of structured databases. In order to keep the emerging situation in hand, we suggest the creation (1) a theoretical framework for modeling business Information Systems; (2) and a design method for practical application based on the theoretical model that provides the structuring principles. The modeling approach that focuses on documents and their interrelationships with business processes assists in perceiving the activities of modern Information Systems
Enterprise Architecture: Enabling Digital Transformation for Operational Business Process during COVID-19
The SARS-CoV-2 pandemic and the global response to contain its spread and deaths have been unprecedented, according to UNICEF research on COVID-19 released in 2021. Many steps had been taken by countries worldwide, particularly those in South Asia. As of May 17th, 2020, Indonesia reported a total of 17,514 daily positive cases. It has been confirmed that the majority of cases throughout the archipelago occur primarily on Java, particularly in the Greater Jakarta, Greater Bandung, Semarang, Solo, and Greater Surabaya areas. The research object of this paper is a system integrator company located in, Central Jakarta. The company's business is badly impacted by this pandemic. The company provides nearly all ICT solutions, yet improving their internal systems is an issue that has never been brought up. Due to physical distance regulations, leading workers to work from home. To keep the business running, the company began using email as their only tool to run the whole system, which is not effective and causing a crisis for the company. The purpose of this paper is to propose a digital transformation plan as a solution and to support business continuity by utilizing TOGAF ADM. Doi: 10.28991/HIJ-2023-04-01-01 Full Text: PD
Computer-aided exploration of architectural design spaces: a digital sketchbook
Het ontwerpproces van architecten vormt vaak geen lineair pad van ontwerpopgave tot eindresultaat, maar wordt veeleer gekenmerkt door exploratie of het doorzoeken van meerdere alternatieven in een (conceptuele) ontwerpruimte. Dit proces wordt in de praktijk vaak ondersteund door manueel schetsen, waarbij de ontwerpers schetsboek kan gelezen worden als een reeks exploraties. Dit soort interactie met de ontwerpruimte wordt in veel mindere mate ondersteund door hedendaagse computerondersteunde ontwerpsystemen. De metafoor van een digitaal schetsboek, waarbij menselijke exploratie wordt versterkt door de (reken)kracht van een computer, is het centrale onderzoeksthema van dit proefschrift. Hoewel het opzet van een ontwerpruimte op het eerste gezicht schatplichtig lijkt aan het onderzoeksveld van de artificiĂ«le intelligentie (AI), wordt het ontwerpen hier ruimer geĂŻnterpreteerd dan het oplossen van problemen. Als onderzoeksmethodologie worden vormengrammaticaâs ingezet, die enerzijds nauw aanleunen bij de AI en een formeel raamwerk bieden voor de exploratie van ontwerpruimtes, maar tegelijkertijd ook weerstand bieden tegen de AI en een vorm van visueel denken en ambiguĂŻteit toelaten. De twee bijhorende onderzoeksvragen zijn hoe deze vormengrammaticaâs digitaal kunnen worden gerepresenteerd, en op welke manier de ontwerper-computer interactie kan gebeuren. De resultaten van deze twee onderzoeksvragen vormen de basis van een nieuw hulpmiddel voor architecten: het digitaal schetsboek
Proceedings of the 1994 Monterey Workshop, Increasing the Practical Impact of Formal Methods for Computer-Aided Software Development: Evolution Control for Large Software Systems Techniques for Integrating Software Development Environments
Office of Naval Research, Advanced Research Projects Agency, Air Force Office of Scientific Research, Army Research Office, Naval Postgraduate School, National Science Foundatio
Proceedings of the ECCS 2005 satellite workshop: embracing complexity in design - Paris 17 November 2005
Embracing complexity in design is one of the critical issues and challenges of the 21st century. As the realization grows that design activities and artefacts display properties associated with complex adaptive systems, so grows the need to use complexity concepts and methods to understand these properties and inform the design of better artifacts. It is a great challenge because complexity science represents an epistemological and methodological swift that promises a holistic approach in the understanding and operational support of design. But design is also a major contributor in complexity research. Design science is concerned with problems that are fundamental in the sciences in general and complexity sciences in particular. For instance, design has been perceived and studied as a ubiquitous activity inherent in every human activity, as the art of generating hypotheses, as a type of experiment, or as a creative co-evolutionary process. Design science and its established approaches and practices can be a great source for advancement and innovation in complexity science. These proceedings are the result of a workshop organized as part of the activities of a UK government AHRB/EPSRC funded research cluster called Embracing Complexity in Design (www.complexityanddesign.net) and the European Conference in Complex Systems (complexsystems.lri.fr). Embracing complexity in design is one of the critical issues and challenges of the 21st century. As the realization grows that design activities and artefacts display properties associated with complex adaptive systems, so grows the need to use complexity concepts and methods to understand these properties and inform the design of better artifacts. It is a great challenge because complexity science represents an epistemological and methodological swift that promises a holistic approach in the understanding and operational support of design. But design is also a major contributor in complexity research. Design science is concerned with problems that are fundamental in the sciences in general and complexity sciences in particular. For instance, design has been perceived and studied as a ubiquitous activity inherent in every human activity, as the art of generating hypotheses, as a type of experiment, or as a creative co-evolutionary process. Design science and its established approaches and practices can be a great source for advancement and innovation in complexity science. These proceedings are the result of a workshop organized as part of the activities of a UK government AHRB/EPSRC funded research cluster called Embracing Complexity in Design (www.complexityanddesign.net) and the European Conference in Complex Systems (complexsystems.lri.fr)
Knowledge hypergraph based-approach for multi-source data integration and querying : Application for Earth Observation domain
Early warning against natural disasters to save lives and decrease damages has drawn increasing interest to develop systems that observe, monitor, and assess the changes in the environment. Over the last years, numerous environmental monitoring systems and Earth Observation (EO) programs were implemented. Nevertheless, these systems generate a large amount of EO data while using different vocabularies and different conceptual schemas. Accordingly, data resides in many siloed systems and are mainly untapped for integrated operations, insights, and decision making situations. To overcome the insufficient exploitation of EO data, a data integration system is crucial to break down data silos and create a common information space where data will be semantically linked. Within this context, we propose a semantic data integration and querying approach, which aims to semantically integrate EO data and provide an enhanced query processing in terms of accuracy, completeness, and semantic richness of response. . To do so, we defined three main objectives. The first objective is to capture the knowledge of the environmental monitoring domain. To do so, we propose MEMOn, a domain ontology that provides a common vocabulary of the environmental monitoring domain in order to support the semantic interoperability of heterogeneous EO data. While creating MEMOn, we adopted a development methodology, including three fundamental principles. First, we used a modularization approach. The idea is to create separate modules, one for each context of the environment domain in order to ensure the clarity of the global ontologyâs structure and guarantee the reusability of each module separately. Second, we used the upper-level ontology Basic Formal Ontology and the mid-level ontologies, the Common Core ontologies, to facilitate the integration of the ontological modules in order to build the global one. Third, we reused existing domain ontologies such as ENVO and SSN, to avoid creating the ontology from scratch, and this can improve its quality since the reused components have already been evaluated. MEMOn is then evaluated using real use case studies, according to the Sahara and Sahel Observatory expertsâ requirements. The second objective of this work is to break down the data silos and provide a common environmental information space. Accordingly, we propose a knowledge hypergraphbased data integration approach to provide experts and software agents with a virtual integrated and linked view of data. This approach generates RML mappings between the developed ontology and metadata and then creates a knowledge hypergraph that semantically links these mappings to identify more complex relationships across data sources. One of the strengths of the proposed approach is it goes beyond the process of combining data retrieved from multiple and independent sources and allows the virtual data integration in a highly semantic and expressive way, using hypergraphs. The third objective of this thesis concerns the enhancement of query processing in terms of accuracy, completeness, and semantic richness of response in order to adapt the returned results and make them more relevant and richer in terms of relationships. Accordingly, we propose a knowledge-hypergraph based query processing that improves the selection of sources contributing to the final result of an input query. Indeed, the proposed approach moves beyond the discovery of simple one-to-one equivalence matches and relies on the identification of more complex relationships across data sources by referring to the knowledge hypergraph. This enhancement significantly showcases the increasing of answer completeness and semantic richness. The proposed approach was implemented in an open-source tool and has proved its effectiveness through a real use case in the environmental monitoring domain
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