Добірка наукової літератури з теми "Workflow resiliency"

Workflow management systems are very important for any organization to manage and model complex business processes. However, significant work is needed to keep a workflow resilient and secure. Therefore, organizations apply a strict security policy and enforce access control constraints. As a result, the number of available and authorized users for the workflow execution decreases drastically. Thus, in many cases, such a situation leads to a workflow deadlock situation, where there no available authorized user-task assignments for critical tasks to accomplish the workflow execution. In the literature, this problem has gained interest of security researchers in the recent years, and is known as the workflow satisfiability problem (WSP). In this paper, we propose a new approach to bypass the WSP and to ensure workflow resiliency and security. For this purpose, we define workflow criticality, which can be used as a metric during run-time to prevent WSP. We believe that the workflow criticality value will help workflow managers to make decisions and start a mitigation solution in case of a critical workflow. Moreover, we propose a delegation process algorithm (DP) as a mitigation solution that uses workflow instance criticality, delegation, and priority concepts to find authorized and suitable users to perform the critical task with low-security risks.

Military operations are highly complex workflow systems that require careful planning and execution. The interactive complexity and tight coupling between people and technological systems has been increasing in military operations, which leads to both improved efficiency and a greater vulnerability to mission accomplishment due to attack or system failure. Although the ability to resist and recover from failure is important to many systems and processes, the robustness and resiliency of workflow management systems has received little attention in literature. The authors propose a novel workflow modeling framework using high-level Petri nets (PNs). The proposed framework is capable of both modeling structure and providing a wide range of qualitative and quantitative analysis. The concepts of self-protecting and self-healing systems are captured by the robustness and resiliency measures proposed in this study. The proposed measures are plotted in a Cartesian coordinate system; a classification scheme with four quadrants (i.e., possession, preservation, restoration, and devastation) is proposed to show the state of the system in terms of robustness and resiliency. The authors introduce an overall sustainability index for the system based on the theory of displaced ideals. The application of the methodology in the evaluation of an air tasking order generation system at the United States Air Force is demonstrated.

The increasing complexity and tight coupling between people and computer systems in military operations has led to improved efficiency, as well as greater vulnerability due to system failure. Careful management of workflow systems can minimize operational vulnerability in command and control. Tavana et al. (2011) developed a workflow management framework capable of both modeling structure and providing a wide range of quantitative analysis with high-level Petri nets (PNs). The framework is based on a sustainability index that captures the concepts of self-protecting and self-healing systems. This index uses crisp numerical values to measure the robustness and resiliency of the system. However, the observed values of data in real-world military operations are often imprecise or vague. These inexact data can be represented by fuzzy numbers to reflect the decision makers’ intuition and subjective judgments. In this paper, the authors extend this model to a fuzzy framework by proposing a new fuzzy workflow modeling system with PNs. The new model plots the fuzzy robustness and resiliency measures in a Cartesian coordinate system and derives an overall fuzzy sustainability index for the system based on the theory of displaced ideals. The proposed model also considers multiple criteria to produce this fuzzy index.

Three-dimensional (3D) printing with biocompatible resins offers new competition to its opposition—subtractive manufacturing, which currently dominates in dentistry. Removing dental material layer-by-layer with lathes, mills or grinders faces its limits when it comes to the fabrication of detailed complex structures. The aim of this original research was to design, materialize and clinically evaluate a functional and resilient shape of the orthodontic power-arm by means of biocompatible 3D printing. To improve power-arm resiliency, we have employed finite element modelling and analyzed stress distribution to improve the original design of the power-arm. After 3D printing, we have also evaluated both designs clinically. This multidisciplinary approach is described in this paper as a feasible workflow that might inspire application other individualized biomechanical appliances in orthodontics. The design is a biocompatible power-arm, a miniature device bonded to a tooth surface, translating significant bio-mechanical force vectors to move a tooth in the bone. Its design must be also resilient and fully individualized to patient oral anatomy. Clinical evaluation of the debonding rate in 50 randomized clinical applications for each power-arm-variant showed significantly less debonding incidents in the improved power-arm design (two failures = 4%) than in the original variant (nine failures = 18%).

Abstract Purpose To explore pharmacy learner (eg, resident, fellow) and educator (eg, residency program director, preceptor) experiences and lessons learned during the coronavirus disease 2019 (COVID-19) pandemic. Methods In May 2020, attendees of the virtual Research in Education and Practice Symposium (REPS) were invited to participate in two 1-hour networking sessions. During these sessions, participants completed individual and group reflection exercises where they were asked questions about their experiences during the initial stages of the COVID-19 pandemic. Participants who volunteered submitted their responses through an electronic survey application. Anonymous responses were coded using thematic analysis to address the research questions. Results Sixty-eight and 38 participants, respectively, attended the 2 networking discussions. Participant-identified professional impacts of the COVID-19 crisis included unexpected learning experiences, greater adaptability, workflow and learning interruptions, and decreased productivity. Personal impacts included a greater focus on well-being, physical and social isolation, and changes in travel plans. Participants noted positive and negative emotions including acceptance, encouragement, anxiety, stress, and frustration. The main lessons learned focused on adaptability, gratitude, and empathy. Participants shared that they wished they would have known the anticipated duration of the pandemic, associated workflow changes, and reliance on technology prior to the start of the pandemic. In addition, they predicted that pharmacy practice will require changes to workflow flexibility, training expectations, the pharmacist’s role, and organizational structure. Conclusion The COVID-19 pandemic has positively and negatively impacted the professional and personal lives of pharmacy learners and educators, with the most notable impacts being in the areas of well-being and adaptability. Future research should explore the experiences of other workforce personnel and evaluate the long-term impact on pharmacy practice, patient outcomes, and workforce well-being and resiliency.

Abstract. Climate resilience is an emerging issue at contaminated sites and hazardous waste sites, since projected climate shifts (e.g., increased/decreased precipitation) and extreme events (e.g., flooding, drought) could affect ongoing remediation or closure strategies. In this study, we develop a reactive transport model (Amanzi) for radionuclides (uranium, tritium, and others) and evaluate how different scenarios under climate change will influence the contaminant plume conditions and groundwater well concentrations. We demonstrate our approach using a two-dimensional (2D) reactive transport model for the Savannah River Site F-Area, including mineral reaction and sorption processes. Different recharge scenarios are considered by perturbing the infiltration rate from the base case as well as considering cap-failure and climate projection scenarios. We also evaluate the uranium and nitrate concentration ratios between scenarios and the base case to isolate the sorption effects with changing recharge rates. The modeling results indicate that the competing effects of dilution and remobilization significantly influence pH, thus changing the sorption of uranium. At the maximum concentration on the breakthrough curve, higher aqueous uranium concentration implies that sorption is reduced with lower pH due to remobilization. To better evaluate the climate change impacts in the future, we develop the workflow to include the downscaled CMIP5 (Coupled Model Intercomparison Project) climate projection data in the reactive transport model and evaluate how residual contamination evolves through 2100 under four climate Representative Concentration Pathway (RCP) scenarios. The integration of climate modeling data and hydrogeochemistry models enables us to quantify the climate change impacts, assess which impacts need to be planned for, and therefore assist climate resiliency efforts and help guide site management.

The inspiration for The American Nurse Project, Dr. Rhonda Collins, DNP, RN, FAAN, is Chief Nursing Officer for Vocera Communications. Every year around Nurses Week, Dr. Collins publishes a report examining important issues that impact the nursing profession worldwide. Her 2020 CNO report looks at many of the challenges impacting nurses before, during, and after COVID-19—highlighting the mental anguish and physical burdens that COVID-19 has placed on nurses and other frontline healthcare workers as they put themselves in harm’s way to protect others. Dr. Collins examines the foundation of cognitive science and outlines a three-point strategy to guide hospital and nurse leaders moving forward as they strive to support staff members: lightening clinicians’ cognitive load by addressing the difference between documentation and communication, relieving the burden of adapting to multiple systems by giving clinicians control over how they communicate, and providing clinicians with clear, contextual, just-in-time information—using software to enhance workflow, not distract from it. During these unprecedented times, health leaders can honour nurses by providing them with the tools to help strengthen resiliency and healing from this crisis.

Coastlines are changing, wildfires are raging, cities are getting hotter, and spatial designers are charged with the task of designing to mitigate these unknowns. This research examines computational digital workflows to understand and alleviate the impacts of climate change on urban landscapes. The methodology includes two separate simulation and visualization workflows. The first workflow uses an animated particle fluid simulator in combination with geographic information systems data, Photoshop software, and three-dimensional modeling and animation software to simulate erosion and sedimentation patterns, coastal inundation, and sea level rise. The second workflow integrates building information modeling data, computational fluid dynamics simulators, and parameters from EnergyPlus and Landsat to produce typologies and strategies for mitigating urban heat island effects. The effectiveness of these workflows is demonstrated by inserting design prototypes into modeled environments to visualize their success or failure. The result of these efforts is a suite of workflows which have the potential to vastly improve the efficacy with which architects and landscape architects use existing data to address the urgency of climate change.

Abstract Background Social determinants of health (SDoH)—which are factors such as socioeconomic status (SES), access to transportation, food and housing security, disability and social supports—have been shown to influence up to 50% of health in patients. The project team developed a SDoH Questionnaire which evolved into what is now referred to as BEARS (Barriers to Care, Economic Factors, Adversity, Resiliency, Social Capital). Part of the BEARS Questionnaire includes an optional section for inquiring about Adverse Childhood Experiences (ACEs). Objectives The primary purpose of this study was to evaluate the impact and feasibility of the BEARS Questionnaire. Additional objectives were to assess the utility and functionality of the BEARS Questionnaire as a social history-taking tool, including the cumulative ACEs questions, and obtain suggestions for improvement of the tool. Design/Methods This was a mixed methods pilot study that consisted of quantitative surveys and qualitative structured interviews with clinicians who had experience using the BEARS Questionnaire. Descriptive statistics were performed on all survey results. Thematic analysis was performed on clinician interviews with recurrent themes being identified through iterative analysis and tagged quotations. Results 15 clinicians completed the quantitative survey and five took part in a qualitative interview. Study participants included surgeons, pediatricians, speech language pathologists, social workers and nurse clinicians. The BEARS Questionnaire changed clinician practice by increasing the frequency and breadth of social screening in their patients and optimizing care to fit their patients’ social context. Participants described the BEARS as an effective screening tool for SDoH and ACEs that was feasible to implement into their clinic workflow. Three themes emerged from our interviews: (1) Thorough social history taking highlights family resiliency and improves clinician-patient rapport, (2) Screening for ACEs is acceptable and feasible in a safe clinical environment, and (3) Social screening is feasible in a busy clinical environment and there is room for improvement. Conclusion This study highlights the importance of social screening in pediatric patients and their families, and how using a social screening tool allows providers to tailor care for a patients’ social context. The BEARS Questionnaire is feasible to implement within the context of a busy clinic. Finally, despite being a sensitive topic, an ACEs questionnaire can be incorporated when done in a trauma-informed way, and in the context of a longitudinal therapeutic relationship.