No description available.

Dagens komplexa vårdmiljö kan förenklas genom att utrusta sjukhusensoperationssalar med en integrerad systemlösning. Syftet är att möjliggöramanövrering av all utrustning från en gemensam enhet, och på så sätt effektiviseraarbetsflödet. Idag saknas data som stödjer påståendet att systemetsförprogrammerade scenarion innebär en förbättring. Det här arbetet går ut på att undersöka den nytta som integrationslösningenmedför i operationssalar. Detta görs genom att undersöka arbetsflödet utifrån treolika styrningsfall (med förprogrammerade scenarion, manuellt via applikationeroch exludering av systemet), samt utifrån tre olika mätparametrar (klick, steg ochtid). Syftet med jämförelsen är att se vilket av dessa fall som är optimalt utifrån ettanvändarperspektiv. Resultatet visar på en tydlig fördel för styrning av systemet med förprogrammeradescenarion utifrån samtliga mätparametrar. De antaganden som har formatundersökningen, samt de kvantitativa begränsningarna i studiens data, tas hänsyntill i analysen. Under analys stärks det framtagna resultatet. I kombination med en fördeladstyrning mellan användarna utgör styrning med förprogrammerade scenarion detbästa alternativet för ett optimerat arbetsflöde. / Healthcare system complexity can be simplified by equipping hospital operatingtheatres with an integrated system solution. The goal is to improve the hospitalworkflow by enabling maneuvering of all the equipment from a common unit.Today there is no data to support the claim that the system offered feature of usingpreset scenes provides any improvements. The aim of this study is to demonstrate the benefits of the integrated operatingsystem. This is done by performing a workflow analysis based on three differentcases (with preset scenes, maneuvered through the applications and without use ofthe integrated system) and three different parameters (clicks, steps, and time). Thepurpose is to clarify the, from a user perspective, most beneficial case. The measured result shows an advantage when using the system with presetscenes. All of the assumptions in the survey, including the limitations ofquantitative data, are considered in the study. The result is validated by the analysis. A combination of the case with preset scenesand a distributed control between the users are therefore the best alternative for anoptimized workflow.

Tesis por compendio / [ES] La digitalización en la sanidad sigue poco desarrollada en comparación con muchos otros sectores, pero ofrece la posibilidad de hacer frente a retos cada vez mayores. A partir del caso de un sistema digital de gestión del flujo de trabajo implantado en el quirófano, esta tesis examina cuál podría ser el impacto de la digitalización en la calidad, la eficiencia y la economía de la gestión hospitalaria. La metodología de investigación se basa en un enfoque cuantitativo. En primer lugar, se ha desarrollado una visión general y un análisis del mercado sanitario europeo, así como una amplia y sistemática revisión bibliográfica. Esta se ha enfocado en la eficiencia y el impacto económico de la estandarización y digitalización de los procesos intraoperatorios en el quirófano. Los resultados proporcionaron la base para derivar las preguntas de investigación en torno a los sistemas digitales de gestión del flujo de trabajo. Para cubrir las lagunas de investigación identificadas, se han obtenido y analizado de forma retrospectiva datos de un hospital, como estudio de caso, sobre un sistema digital de gestión del flujo de trabajo, Surgical Process Manager (SPM), en ortopedia y cirugía general. Los datos adicionales proporcionados por los pacientes, se han utilizado de forma retrospectiva para realizar cálculos económicos con el fin de responder a la pregunta principal de la investigación en cirugía general, centrándose en la cirugía de la obesidad. Las principales conclusiones de la tesis muestran que la implantación de sistemas digitales de gestión del flujo de trabajo, como el SPM, mejora la eficiencia y la economía en la cirugía de la obesidad. El análisis de odds ratio (razón de oportunidades/probabilidades) para evaluar el impacto en la calidad no permitió extraer conclusiones ni en ortopedia ni en cirugía de la obesidad. El cálculo coste-beneficio en cirugía de la obesidad mostró un ahorro de costes de 318 euros por paciente, lo que supuso un total de 10.073 euros. Este beneficio económico se consiguió gracias a la disminución de la duración de la estancia (-1,2 días). Por primera vez, esta investigación aporta pruebas sobre el valor económico de los procesos digitalizados y estandarizados en el quirófano en cirugía general y ambulatoria. Los resultados facilitarán las decisiones de inversión en digitalización de la gestión hospitalaria y ofrecerán opciones para superar la carga económica en el mercado sanitario actual. Además, los resultados proporcionan detalles en profundidad sobre estructuras de costes específicas, cálculos, así como reembolsos y cómo medir eficazmente el impacto financiero en los sistemas digitales en el quirófano. / [CA] La digitalització de l'assistència sanitària encara està endarrerida en comparació amb moltes altres indústries, però ofereix el potencial per fer front als reptes creixents. Aquesta tesi examina sobre l'exemple d'un sistema de gestió de flux de treball digital, implementat al quiròfan quirúrgic (OR), quin podria ser l'impacte de la digitalització en la qualitat, l'eficiència i l'economia per a la gestió hospitalària. La metodologia d'aquesta investigació es basa en un enfocament quantitatiu. En primer lloc, es va fer una visió general i anàlisi del mercat sanitari i una extensa revisió sistemàtica de la literatura. Es va centrar en l'eficiència i l'impacte econòmic de l'estandardització i la digitalització dels processos intraoperatoris al quiròfan. Les troballes van proporcionar la base per derivar les preguntes de recerca al voltant dels sistemes de gestió de flux de treball digitals. Per cobrir els buits de recerca identificats, s'han extret i analitzat retrospectivament dades d'hospitals d'un sol centre en un sistema de gestió de flux de treball digital, Surgical Process Manager (SPM), en ortopèdia i cirurgia general i visceral (G&V). S'han utilitzat retrospectivament dades addicionals dels pacients per a càlculs econòmics per concloure la pregunta principal de recerca en G&V amb un enfocament en la cirurgia de l'obesitat. Les principals conclusions de la tesi mostren que la implementació de sistemes digitals de gestió de flux de treball, a partir de l'exemple de l'SPM, millora l'eficiència i l'economia en la cirurgia de l'obesitat. L'anàlisi d'odds ratio per avaluar l'impacte en la qualitat no va permetre treure conclusions ni en ortopèdia ni en cirurgia de l'obesitat. El càlcul cost-benefici en cirurgia de l'obesitat va mostrar un estalvi de costos de 318 € per pacient, que va ascendir a 10.073 €. Aquest benefici econòmic es va aconseguir mitjançant la disminució de la durada de l'estada (-1,2 dies). Per primera vegada la investigació proporciona evidència sobre el valor econòmic dels processos digitalitzats i estandarditzats a la sala d'operacions en G&V. Els resultats facilitaran les decisions d'inversió en la digitalització de la gestió hospitalària i oferiran opcions per superar la càrrega econòmica del mercat sanitari actual. A més, les troballes proporcionen detalls detallats sobre estructures de costos específiques, càlculs, així com el reemborsament i com mesurar eficaçment l'impacte financer en els sistemes digitals de l'OR. / [EN] Digitalization in healthcare still lags compared to many other industries but offers the potential to cope with increasing challenges. This thesis examines the example of digital workflow management implemented in the surgical Operating Room (OR) and what the impact of digitalization on quality, efficiency and economics for hospital management could be. The methodology for this research is based on a quantitative approach. First, an overview and analysis of the healthcare market and an extensive systematic literature review were carried out. It was focused on the efficiency and economic impact of standardization and digitalization of intraoperative processes in the OR. The findings provided the basis for the research questions around digital workflow-management-systems. Single-center hospital data on a digital workflow-management-system, Surgical Process Manager (SPM), has been retrospectively extracted and analyzed in orthopedics and general & visceral surgery (G&V) to fill identified research gaps. Additionally, provided patient data has been retrospectively used for economic calculations to conclude the main research question in G&V, focusing on obesity surgery. The main findings of the thesis show that implementing digital workflow management systems, in the example of the SPM, improves efficiency and economics in obesity surgery. The odds ratio analysis to assess the impact on quality did not allow conclusions in orthopedics or obesity surgery. The cost-benefit calculation in obesity surgery showed cost savings of 318 € per patient, totaling 10,073€. This economic benefit was achieved by decreasing the length of stay (-1.2 days). For the first time, research provides evidence of the economic value of digitized and standardized processes in the OR in G&V. The results will facilitate investment decisions in digitization of hospital management and offer options to overcome the financial burden in the current healthcare market. Also, the findings provide in-depth details on specific cost structures, calculations, reimbursement, and how to effectively measure the financial impact on digital systems in the OR. / Von Schudnat, C. (2024). An economic analysis of digitalized and standardized workflows within the operating room [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/203008 / Compendio

Since the early 2000s, Service Oriented Architectures (SOAs) have played a key role in the development of complex applications within a virtual organization (VO) context. Grids and workflows have emerged as vital technologies for addressing the (SOA) paradigm. Given the variety of Grid middleware, scientific workflow systems and Grid workflows available, bringing the two technologies together in a flexible, reusable and generalized way has been largely overlooked, particularly from a scientific end user perspective. The lack of domain focus in this area has led to a slow uptake of Grid technologies. This thesis aims to design a framework for Grid-enabling workflows, which identifies the essential technological components, how these components fit together in layered architecture and the interactions between them. To produce such a framework, this thesis first investigates the definition of a Grid-workflow architecture and mapping Grid functionality to workflow nodes, focusing on striking a balance between performance, usability and the Grid functionality supported. Next, it presents an examination of framework extensions for supporting various forms of Grid heterogeneity, essential for ii VO based collaboration. Given the complex nature of Grid technologies, the work presented here investigates abstracting Grid based workflows through high-level definitions and resolution using semantic technologies. Finally, this thesis presents a way to resolves abstract Grid workflows using semantic technologies and intelligent, autonomous agents. The frameworks presented in this thesis are tested and evaluated within the context of domain-based case studies defined in the SIMDAT, BRIDGE and ARGUGRID EU funded research projects.

published_or_final_version / abstract / Real Estate and Construction / Doctoral / Doctor of Philosophy

<p>Information technology (IT) is becoming the primary factordetermining the survival of most organizations. The differenttypes of systems and the wide range of objectives suggest thatdiverse evaluation methods are needed. There is a critical needfor a new approach to managing IT investments, and solving theinformation paradox should be a business imperative for allmanagers today.</p><p>Evaluating IT investments introduces different types ofproblems that investment in traditional assets does notconsider. The focal point shifts from measuring hard andquantifiable benefits that appear on a firm’s incomestatement to measuring soft, diffuse, and qualitativeimpact.</p><p>The decision to acquire new information technology poses anumber of serious evaluation problems for managers because theavailable methods for IT investment evaluation are mostlystatic and they do not consider dynamism in decision-makingprocesses.</p><p>Common problems with the methods for evaluating ITinvestments are related to their inability to take account ofthe full range of potential benefits. There is a gap betweentheory and practice in relation to the use of any method formaking decisions and for continuous evaluation of ITinvestments.</p><p>This thesis presents a new approach to evaluating benefitsof IT investments in a dynamic way, an approach consisting of acombination of dynamic information workflow models and businessprocess simulation techniques. The proposed approach givesmanagers and organizations the possibility of implementingother models for measuring different metrics and aspects of ITinvestments.</p><p>A dynamic information workflow model of an electric utilityandsimulation essays are presented in order to show how theproposed approach is applied. The performance measure selectedfor running experiments was efficiency, which was characterizedby the following selected performance indicators: cycle time,resource utilization, and activity costs. Empirical data wascollected from case studies of different utilities in CentralAmerican countries.</p><p><b>Key words:</b>Business Process Modeling and Simulation,Evaluating IT Investments, Dynamic Information Workflow Model,Electric Utilities.</p>

A flexible, scalable, and asynchronous middleware abstract is needed for business process management, which involves thousands of tasks and a large number of running instances of large business processes. The content-based publish/subscribe system is an ideal candidate to serve as enterprise service bus for these applications. In the publish/subscribe paradigm, information providers called publishers disseminate publications to all subscribers who have expressed interests by registering subscriptions through a loosely coupled interface. However, the traditional publish/subscribe paradigm only supports stateless subscriptions, that is, event correlation is ignored. Moreover, subscribers can only receive publications issued after their subscriptions. There are many application contexts, however, where access to publications from the past is necessary,such as for replaying a business process execution to debug it. Even more interesting uses arise when data from the past can be correlated with those in the future. Therefore, new languages and new functionalities are needed in the standard publish/subscribe model in order to support business process management. A new subscription language PADRES SQL(PSQL) which can express event patterns and unify both historic and future views for subscribers. PADRES allows a subscriber to access data published both in the past and in the future. Furthermore, complex event detection happens in the broker network. The main difficulties of distributed event detection are routing a composite subscription, including where and how to decompose the composite subscription, and routing the individual parts of the subscription. Our composite subscription routing decisions are based on a cost model which minimizes the routing and detection delay. An adaptive subscription routing protocol is proposed to determine efficient location with dynamic changing workloads. PADRES also provides robust message delivery by exploring alternative paths in a cyclic overlay. Routing optimizations and efficient matching algorithms are studied to improve the performance of the extended publish/subscribe model. With the above features, we propose the Ninos system, the distributed business process execution architecture as a case study,which uses light-weight activity agents to carry out business process execution in a distributed environment. Ninos proves that decentralized business process execution is the trend for next generation products, and the publish/subscribe model is ideal to serve as an enterpriser service bus (ESB) for distributed applications.

A doctoral thesis submitted in partial fulfillment of the requirements for the award of PhD of Loughborough University.

Parameter selection is a critical task in scientific workflows in order to maintain the accuracy of the simulation in an environment where physical conditions change dynamically such as in the case of weather research and forecast simulations. Currently, Numerical Weather Prediction (NWP) is the premier method for weather prediction, which is used by the National Oceanic and Atmospheric Administration (NOAA). It takes the current observations from observed sites as the input for numeric computer models and then produces the final prediction. Considering the large number of simulation parameters, the size of the configuration search space becomes prohibitive for rapidly evaluating and identifying the parameter configuration that leads to most accurate prediction. In this thesis, we develop an Autonomic Workflow Performance Manager (AWPM) for Hurricane Integrated Modeling System (HIMS). AWPM is implemented on top of the Apache Storm and ZooKeeper to handle multiple real-time data streams for weather forecast. AWPM can automatically manage model initialization and execution workflow and achieve better performance and efficiency. In our experiments, AWPM achieves better performance and efficiency for the model initialization and execution processes, by utilizing automatic computing, distributed computing and component-based development. We reduced the timescale of the configuration search workflow by a factor of 10 by using 20 threads with the full search method, and a factor of 20 by with the roofline method when compared to serial workflow execution as it is typically performed by domain scientists.

A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, in fulfillment of the requirements for the degree of Masters in Engineering, 2017 / Manufacturing companies have challenges implementing business process improvements and innovations (BPI) on support service processes effectively and find it difficult to measure the impact of such interventions on the overall performance of the organisation. Measurement of the impact of BPIs on overall performance of manufacturing companies is problematic due to the inadequacy of BPI metrics for support services. Furthermore, there are no universally accepted frameworks available for the measurement of the impact of improvements on support service processes on the performance of manufacturing companies. While there are frameworks available for performance measurement in general, they are not specific to measurement of the impact of BPIs in manufacturing support service processes. An initial exploratory study, based on an online survey of 50 companies that would typically conduct BPI or where known to the researcher to have conducted BPIs recently, was conducted to explore the nature of BPIs in manufacturing support service processes in South Africa. A second longer online survey was then conducted with 1000 respondents in manufacturing companies selected through expert sampling to further explore the nature and impact of BPIs in manufacturing support service processes considering selection of support service processes, the types and number of support service processes as well as BPI traditions and methodologies in use within manufacturing companies. In addition, four companies were selected for in-depth case studies in which ten projects were analysed by applying within case and cross case analysis The results of the surveys, the case studies and a revisit to the case companies were used to refine successive iterations of a theoretical framework initially developed from the literature. The framework provides a set of guidelines and actions for manufacturing companies to effectively conduct BPIs on manufacturing support service processes a basis from which the impact of improvements in manufacturing support service processes on manufacturing companies can be measured by providing the measurement areas to consider and a set of high level measures to use as high level indicators. Finally, the framework was checked for completeness using recommended criteria derived from the literature and was found to be complete and suitable as it met all the criteria for good measurement systems defined in the literature sources used in this study. / MT 2017