The Experts below are selected from a list of 42 Experts worldwide ranked by ideXlab platform
Mario Vanhoucke - One of the best experts on this subject based on the ideXlab platform.
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A Resource type analysis of the integrated project scheduling and Personnel staffing problem
Annals of Operations Research, 2017Co-Authors: Broos Maenhout, Mario VanhouckeAbstract:In the integrated project scheduling and Personnel staffing problem the project activities are scheduled and simultaneously a staffing plan is composed to carry out a single project. In this way, the project schedule that leads to the staffing plan with minimum cost is determined. In this paper, we evaluate different scheduling policies and practices for different Personnel Resource types. We examine the impact on the staffing cost when the Personnel Resources are scheduled in a cyclic versus a non-cyclic manner for different (days on, days off)-patterns. Furthermore, the impact of introducing more flexible Resource types, such as overtime and temporary help, is explored in relationship with the activity Resource demand variability. Computational results show that non-cyclic scheduling leads to a considerable lower staffing cost under all circumstances compared to cyclic scheduling. However, despite the tractability of the Resource requirements, flexible temporary Resources are essential on top of the regular Personnel Resources to respond to the variability in demand. The addition of overtime on a strategic staffing level only marginally decreases the Personnel cost.
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an exact algorithm for an integrated project staffing problem with a homogeneous workforce
Journal of Scheduling, 2016Co-Authors: Broos Maenhout, Mario VanhouckeAbstract:When scheduling projects under Resource constraints, assumptions are typically made with respect to the Resource availability. In Resource scheduling problems important assumptions are made with respect to the Resource requirements. As projects are typically labour intensive, the underlying (Personnel) Resource scheduling problems tend to be complex due to different rules and regulations. In this paper, we aim to integrate these two interrelated scheduling problems to minimise the overall cost. For that purpose, we propose an exact algorithm for the project staffing with Resource scheduling constraints. Detailed computational experiments are presented to evaluate different branching rules and pruning strategies and to compare the proposed procedure with other optimisation techniques.
Broos Maenhout - One of the best experts on this subject based on the ideXlab platform.
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A Resource type analysis of the integrated project scheduling and Personnel staffing problem
Annals of Operations Research, 2017Co-Authors: Broos Maenhout, Mario VanhouckeAbstract:In the integrated project scheduling and Personnel staffing problem the project activities are scheduled and simultaneously a staffing plan is composed to carry out a single project. In this way, the project schedule that leads to the staffing plan with minimum cost is determined. In this paper, we evaluate different scheduling policies and practices for different Personnel Resource types. We examine the impact on the staffing cost when the Personnel Resources are scheduled in a cyclic versus a non-cyclic manner for different (days on, days off)-patterns. Furthermore, the impact of introducing more flexible Resource types, such as overtime and temporary help, is explored in relationship with the activity Resource demand variability. Computational results show that non-cyclic scheduling leads to a considerable lower staffing cost under all circumstances compared to cyclic scheduling. However, despite the tractability of the Resource requirements, flexible temporary Resources are essential on top of the regular Personnel Resources to respond to the variability in demand. The addition of overtime on a strategic staffing level only marginally decreases the Personnel cost.
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an exact algorithm for an integrated project staffing problem with a homogeneous workforce
Journal of Scheduling, 2016Co-Authors: Broos Maenhout, Mario VanhouckeAbstract:When scheduling projects under Resource constraints, assumptions are typically made with respect to the Resource availability. In Resource scheduling problems important assumptions are made with respect to the Resource requirements. As projects are typically labour intensive, the underlying (Personnel) Resource scheduling problems tend to be complex due to different rules and regulations. In this paper, we aim to integrate these two interrelated scheduling problems to minimise the overall cost. For that purpose, we propose an exact algorithm for the project staffing with Resource scheduling constraints. Detailed computational experiments are presented to evaluate different branching rules and pruning strategies and to compare the proposed procedure with other optimisation techniques.
Bjoern Niehaves - One of the best experts on this subject based on the ideXlab platform.
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open process innovation the impact of Personnel Resource scarcity on the involvement of customers and consultants in public sector bpm
Business Process Management Journal, 2010Co-Authors: Bjoern NiehavesAbstract:Purpose – Open process innovation – drawing from the literature on open innovation and business process management (BPM) – promotes the study of how to systematically make use of knowledge that lies outside of an organization's boundaries for process‐innovation initiatives. Open innovation has been heavily studied for product innovation; however, process innovation has not yet been researched from such perspective. This paper aims to address these issues.Design/methodology/approach – Against this background, the paper seeks to investigate into variables that impact on the qualities of open process innovation taking the example of the public sector domain. This paper examines how Personnel‐Resource scarcity exerts influence on the involvement of: customers (here citizens and local companies); and consultants (here management and software consultants) in public sector BPM. Based on the findings, implications for theory and practice are discussed, including implications for studies on BPM maturity or on busi...
Varis Joonas - One of the best experts on this subject based on the ideXlab platform.
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Enhancing a product’s development and debugging with supporting product development
2020Co-Authors: Varis JoonasAbstract:Opinnäytetyössä kehitettiin tuote, jolla oli tarkoitus tukea toisen tuotteen tuotekehitystä ja virheenselvitystä. Toiseksi työssä arvioitiin tukevan tuotekehityksen merkitystä tuotekehitysprosessissa. Työ tehtiin Valu Digital Oy:lle. Työllä pyrittiin tehostamaan Valu Digitalin kehittämän sivustohakutuotteen tuotekehitystä, jonka kehitysprosessissa oltiin tunnistettu seuraavia haasteita: hajanaiset virheenselvitystyökalut, virheenselvityksen henkilöresurssoituminen, riittämätön indeksoitu data ja tehottomat tuotekehitystyökalut. Tukeva tuote kehitettiin vastaamaan tunnistettuihin ongelmiin, ja sen arvoa arvioitiin aijempien tukipyyntöjen pohjalta rakennetuilla esimerkki tapauksilla. Tukevaa tuotetta tuli käyttää noin 4000 kertaa, ennen kuin sen kehitysaika on maksanut itsensä takaisin. Projekti onnistui luomaan graafisen käyttöliittymän abstraktiin järjestelmään, ja tarjosi uusia mahdollisuuksia tuotekehitykseen ja virheenselvitykseen.The aim of the project was twofold. First, to develop a product which makes developing and maintaining a site search product more efficient. Second, to estimate the value of the novel supporting product development in the process of developing a site search product.The project was assigned by Valu Digital Oy, a Finnish company offering web services. The site search product the novel supporting product development aims to assist is published by Valu Digital Oy in software as a service model. Problems the supporting product development aimed to solve were scattered debugging tools, debugging tied to Personnel Resource, insufficient data indexed and tools inefficient to use. The new supporting product was developed in test-driven development. The supporting product gathered product development tools to a single point of origin, enriched the log data, enabled new ways of debugging and untied Personnel Resources by making debugging more approachable for new developers. The value of the supporting product development was estimated with use-cases based on problems encountered before. Each use-case execution time was timed with and without the new supporting product. Results were gathered and summarized and the return of timely investment was estimated to be around 4000 use-cases. The supporting product also offered non-quantifiable benefits, such as debugging not being tied to a Personnel re-source and the enablement of different development.The project succeeded in creating graphical user interface to an abstract system. This offered new possibilities for future product development and enabled new sectors of developers to get involved in the debugging and development
Panos E Vardas - One of the best experts on this subject based on the ideXlab platform.
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healthcare Personnel Resource burden related to in clinic follow up of cardiovascular implantable electronic devices a european heart rhythm association and eucomed joint survey
Europace, 2011Co-Authors: Giuseppe Boriani, Angelo Auricchio, Catherine Klersy, Paulus Kirchhof, Josep Brugada, John M Morgan, Panos E VardasAbstract:Aims A pilot European survey was conducted to assess the cumulative time spent by healthcare Personnel for in-office follow-up of cardiac implantable electrical devices (CIEDs), including cardiac pacemakers, implantable cardioverter-defibrillators, and cardiac resynchronization therapy (CRT) devices. Methods and results Resource use data were collected during a session of in-clinic follow-up. Among 407 visits, 93% were scheduled and 7% unscheduled. Visit duration (total cumulative time) lasted a mean of 27 min for scheduled visits, and was ∼30% longer for unscheduled visits. Independent determinants of visit duration were: unscheduled visit (+7.6 min, P = 0.01), the need for device reprogramming (+7.5 min, P < 0.001), and the type of device checked, with CRT devices needing 9.1 and 6.6 more minutes than single- ( P < 0.001) and dual-chamber devices ( P = 0.002), respectively. Most visits involved two different types of healthcare Personnel (239 of 407, 59%), simultaneously. The most frequent combination was the involvement of both a cardiologist and a nurse (216 of 407 visits with both of them only, and 65 additional visits with also an internal technician, an external technician, or both). Overall, an external technician was involved in 18% of visits. Conclusions In ‘real-world’ practice, the follow-up of CIEDs nowadays requires important Resources in terms of time dedicated by specialized Personnel, corresponding to cardiologists, nurses, internal technicians, and external, industry-employed technicians. These observations should be the basis for addressing clinical, organizational, financial, and policy initiatives targeted to optimize follow-up procedures in order to face the increase in the number of patients treated with CIEDs expected for the next years.