Business Process Simulation: Transformation of BPMN 2.0 to Discrete Event System Specification

Theoretical modeling is a complicated characteristic of a simulation study that straight affects the quality and effectiveness of simulation projects. This paper presents a model to model transformation from a conceptual modeling language to a simulation model specification. BPMN (Business Process Model and Notation) is worn for theoretical modeling and DEVS (Discrete Event System Specification) is elected for simulation model requirement. Simulation is a dynamic feature of MDSE and which explains the need of coherent M&S formalisms for simulation activities.Accordingly, this paper presents the simulation of service systems based on DEVS models. It defines a transformation approach of BPMN models into DEVS simulation models based on the metamodel approach, and describes the enrichment of obtained DEVS models through performance indicators (time and costs)

Comparative Analysis of Different Tools Business Process Simulation

Business process modelling is an increasingly popular research area for both organisations and enterprises due to its usefulness in facilitating better planning of resources, business reengineering and optimized business performance. The modelling and simulation of Business Processes has been able to show Business Analysts, and Managers where bottleneck exists in the system, how to optimize the Business Process to reduce cost of running the Organization, and the required resources needed for an Organization An important part of the evaluation of designed and redesigned business processes is Business Process Simulation (BPS). Although an abundance of simulation tools exist, the applicability of these tools is diverse. In this paper we thrash out a number of simulation tools that are applicable for the BPM field, we estimate their applicability for BPS and formulate recommendations for further research. This paper is limited to analysis three tools that is IBM WebSphere, FLOWer and FileNet (process management); and Arena and CPN Tools (discrete event simulation)) are compared based on the capabilities of modelling, support of simulation and output analysis

Literature Review of Software Process Assessment Methodology ISO/IEC 15504

An assessment method with the objective of process improvement adapted to small software company based on the standard ISO/IEC 15504 is being developed. This article describes the design, development, validation and results of a Process Assessment Model for assessing Technological and Business Competencies on Software Development. The model follows the ISO/IEC 15504 (SPICE) requirements for Process Assessment Models. A prime motivation for developing this standard has been the perceived need for an internationally recognized software process assessment framework that pulls together the existing public and proprietary models and methods. Assessment process has been adapted and refined in order to provide ready support. The methods includes an adapted and enhanced assessment model based on the ISO 15504 exemplar model

Degradation of haloaromatic compounds

An ever increasing number of halogenated organic compounds has been produced by industry in the last few decades. These compounds are employed as biocides, for synthetic polymers, as solvents, and as synthetic intermediates. Production figures are often incomplete, and total production has frequently to be extrapolated from estimates for individual countries. Compounds of this type as a rule are highly persistent against biodegradation and belong, as "recalcitrant" chemicals, to the class of so-called xenobiotics. This term is used to characterise chemical substances which have no or limited structural analogy to natural compounds for which degradation pathways have evolved over billions of years. Xenobiotics frequently have some common features. e.g. high octanol/water partitioning coefficients and low water solubility which makes for a high accumulation ratio in the biosphere (bioaccumulation potential). Recalcitrant compounds therefore are found accumulated in mammals, especially in fat tissue, animal milk supplies and also in human milk. Highly sophisticated analytical techniques have been developed for the detection of organochlorines at the trace and ultratrace level