Recursive Petri nets (RPNs) have been introduced to model systems with dynamic structure. Whereas this model is a strict extension of Petri nets and contextfree grammars (w.r.t. the language criterion), reachability in RPNs remains decidable. However the kind of model checking which is decidable for Petri nets becomes undecidable for RPNs. In this work, we introduce a submodel of RPNs called se...

Objective Using Failure Mode and Effects Analysis (FMEA) as an example quality improvement approach, our objective was to evaluate whether secondary use of orders, forms, and notes recorded by the electronic health record (EHR) during daily practice can enhance the accuracy of process maps used to guide improvement. We examined discrepancies between expected and observed activities and individu...

evaluation and improvement of drug management process is essential for patient safety. the present study was performed whit the aim of assessing risk of drug management process in women surgery department of qeh using hfmea method in 2013. a mixed method was used to analys failure modes and their effects with hfmea. to classify failure modes; nursing errors in clinical management model, for cla...

Risk analysis plays an important role in many application systems. The current researches prefer to use fuzzy set theory for risk analysis. In this paper, we present a new fuzzy risk analysis method based on generalized fuzzy numbers. Firstly, we define new arithmetic operations between generalized fuzzy numbers. Then, we propose a new method to measure the degree of similarity between generali...

introduction: many organizations, especially, service organizations, relative to their goals and mission, have a special view towards quality phenomena and its management and are turning to approaches such as tqm to help manage their business. this study examined the tqm indicators gap in isfahan khorshid hospital. as fuzzy set theory is better than the logical theory for estimating the linguis...

The key factors in the decision-making process are uncertainty, probability, and impact. appropriate construction methods must be selected based on review safety requirements, which to adjusted accordingly depending highly uncertain continually changing technological requirements. evaluation of method should account for various technical characteristics method, including changeable risk reducti...

Smooth implementation and controlling conflicting goals of a project with the usage of all related resources through organization is inherently a complex task to management. At the same time deterministic models are never efficient in practical project management (PM) decision problems because the related parameters are frequently fuzzy in nature. The project execution time is a major concern o...

PURPOSE Failure modes and effects analysis (FMEA) as defined in TG-100 has become a popular concept throughout the radiotherapy community. This risk mitigation technique involves detailed process mapping, analysis, and ranking of potential errors by means of a subjective, ordinal scoring system. This study aims to reduce the subjectivity of FMEA severity scoring for IMRT delivery by providing q...