Search results for "Project"

SZACOWANIE CZASU REALIZACJI PROJEKTU PRZY NIEPRECYZYJNYCH ZMIENNYCH

2017

Praca przedstawia istotę i znaczenie problemu szacowania czasu realizacji projektów w warunkach niepewności i ryzyka z zastosowaniem skierowanych liczb rozmytych. W pracy przedstawiono autorskie podejście do szacowania czasu realizacji projektów bazujące na rozmytym modelu niepewności czasów czynności projektowych ze skierowaniem. Zaprezentowana rozszerzona metoda ścieżki krytycznej jest nowym podejściem, które do tej pory nie było prezentowane w takim ujęciu w literaturze tematu. W celu weryfikacji poprawności prezentowanego podejścia przedstawiono przykład obliczeniowy ilustrujący dany problem. Przedstawiono zalety proponowanego podejścia. Podejście to może znaleźć zastosowania w praktyce…

Project Scheduling with Stochastic Activity Interruptions

1999

In this chapter we address the problem of scheduling the activities of a resource-constrained project, some of which may be interrupted by an uncertain amount of time. The resources may be, for example, machines in a jobshop, computers with specialized software packages (as those needed for engineering designs), or highly specialized technicians.

Justification technique generalizations

2006

The justification technique was introduced various decades ago for the resource-constrained project scheduling problem, although it has rarely been used with the problem. Justification is a simple and quick technique which when applied to schedules produces a new schedule that is, at most, as long as the original schedule — and often shorter. A recent article (Valls et al, 2005), showed that incorporating justification in heuristic algorithms can produce a substancial improvement in the results obtained. These results have motivated us to generalise this technique in order to study it in greater depth. This paper proposes distinct forms and generalisations for the justification technique an…

How is Project Success Affected by Replacing the Project Manager?

2007

Guanxi, trust and reward-based crowdfunding success: a Chinese case

2019

Purpose This paper aims to examine different hypotheses concerning the effects of guanxi on the reward-based crowdfunding project fundraising. Specifically, this study provides new insights into how guanxi and guanxi intensity may affect reward-based crowdfunding success and project performance in the Chinese context. Design/methodology/approach The research data including 989 crowdfunding projects were collected from zhongchou.com which is the largest reward-based crowdfunding platform in a one-year period (2014.1-2014.12). The hypotheses are tested by using robust OLS regressions and robust logistic regressions. Robustness check was also conducted to test the validation of the results. F…

The long and winding road: Accidents and tinkering in software standardization

2021

Software is based on universal principles but not its development. Relating software to hardware is never automatic or easy. Attempts to optimize software production and drastically reduce their costs (like in hardware) have been very restricted. Instead, highly-skilled and experienced individuals are ultimately responsible for project success. The long and convoluted path towards useful and reliable software is often plagued by idiosyncratic accidents and emergent complexity. It was expected that software standardisation would remove these sources of unwanted diversity by aiming to controllable development processes, universal programming languages, and toolkits of reusable software compon…

Fundamental elements regarding the approach of risk management within the international projects with teams in the virtual environment

2021

International projects with teams in the virtual environment (IPTVE) are known as complex and high risk projects, these features being considered as significant obstacles to project success. Applying the appropriate risk management methodology could increase their success rate, becoming a fundamental tool for decision making. Research on IPTVE management risks is scarce, focused on specific sectors as software development or construction, without taking into account the differences between traditional and international projects. Thereby, risk management within IPTVE becomes a necessary approach for the performance in managing international projects. This article aims to improve the risk man…

Form, figure and landscape for nature in the city.

2014

The article “Form, Figure and Landscape for Nature in the city” describes, through a sequence of steps, the urban and territorial threshold that give structure to the Piacenza southern area. It analyzes in detail the elements that define three “rooms” at different scales: - at the territorial scale, the farmhouses define a system of elements as focal point overlooking the agricultural surface, interpreted as background; - at the urban scale, the reconfiguration of the morphological tissue of the INA Casa neighborhoods allows to read a district itself as a specific “room” inside Piacenza urban fabric; - at the architectural scale, the gardens of interior courtyards of via Francigena building…

Il paesaggio come materia fondativa del progetto

2017

Il contributo affronta il tema del rapporto tra architettura e natura attraverso il ruolo strutturante che il paesaggio antropizzato riveste per quel tipo di progetto che basa la propria essenza costitutiva sulla dimensione fisica e spirituale dei luoghi; in tal senso, il paesaggio è inteso quale finalità principale dell’architettura. Ad esplicitazione dei concetti espressi, si prendono in esame gli esiti della ricerca progettuale condotta dall’autore nell’ambito del proprio laboratorio di progettazione architettonica, destinato allo sviluppo delle tesi di laurea, incentrato sul tema L’architettura nella roccia e operante intorno ai concetti dello scavo, della sottrazione, del progetto del …

Design and interpret the place of present

2018

The contemporary landscape expresses in itself all the contradictions of present time, marked by the lack of a coherent thought about the transformation of places and of a clear aesthetic elaboration. So, the project must reflect not only on the relationship between man and landscape but above on the need to return to a way of dwelling that respects the places. Architecture plays a fundamental role in the reconstruction of coherence of places and reveals their beauty: through its forms, it can set up unprecedented stories of space in places in constant evolution. The thought from which the design process originates must involve the reading and interpretation of the existing places, and proc…