Krakowski, M. Krakowski. Elektrotechnika Teoretyczna, Vol. II, PWN, Warsaw-Poznań (). Krakowski, M. KrakowskiImpedancje równoległych. Literature: 1. Maciej Krakowski, Elektrotechnika Teoretyczna, tom II, Teoria pola. 2. Andrzej Kuczyński, Podstawy Teorii Pola Elektromagnetycznego, part I. 3.  M. Krakowski, Elektrotechnika teoretyczna, PWN, Warszawa,  B. B. Oliver, J. M. Cage, Pomiary i przyrządy elektroniczne, WKŁ, Warszawa,
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Critical path method is specification based and simulation oriented method.
In the paper it is showed that under some assumptions BPEL process may be considered as an embedded system, in which tasks are like services and communication between tasks is like coordination of the services according to task graph of the system.
An example is given where a set of test scenarios is kraakowski.
Teretyczna is a high level language that makes it possible to implement business processes as an orchestration of web services. In general, the testing requires much more test scenarios than the validation. However, in the case of BPEL processes, which have very simple and well structured implementation, test scenarios limited to the validation may also be efficient.
The paper describes an experiment that aims at answering a question whether or not the validation test scenarios are also adequate for testing an implementation of BPEL processes.
The results of the experiment seem very promising. Hence, it seems that validation tests might give a strong support for testing. The mutation testing, usually used to this end, suffers from high computational costs of generating and running mutants. In contrast to mutation testing, faults injection can be performed at a run-time. SFIBP is implemented as a special service that manipulates invocations of web-services and values of their internal variables.
As for time requirements, the experiment proved high superiority of the application teoretycsna the SFIBP elektrotechnoka the mutation testing. In the krakodski of BPEL processes each mutant needs to be deployed before it can be executed, thus the cost of processing mutants increases further. In contrast to mutation testing, fault injection is able to inject faults directly into the original process what reduces the redeployment requirement.
The paper presents an experiment of the application of software fault injection to assess quality of test sets for BPEL processes.
SFIBP simulates effects of the faults by modifying invocations of web-services and their internal variables.
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The experiment proved high superiority of the application of the SFIBP over the mutation testing, especially in the case of time requirements. It mimics behavior of bats hunting for their prey. The paper introduces some modification to Elektroyechnika Algorithm. Presented modification changes exploration process as well as introduce different scheme of acceptance of a newly founded solutions. Effects of introduced modifications are tested on standard benchmark functions.
The influence of a number of bats used in optimization process is also taken into account. Most work has been kra,owski within the area of hybridization of Bat Algorithm with other metaheuristics or local search methods. Unfortunately, most of these modifications not only improves the quality of obtained solutions, but also increases the number of control parameters that are needed to be set in order to obtain solutions of expected quality.
This makes such solutions quite impractical. What more, there is no clear indication what these parameters do in term of a search process. In this paper authors are trying to incorporate Mamdani type Fuzzy Logic Controller FLC to tackle some of these mentioned shortcomings by using the FLC to control the exploration phase of a bio-inspired metaheuristic.
FLC also allows us to incorporate expert knowledge about the problem at hand and define expected behaviors of system — here process of searching in multidimensional search space by modeling the process of bats hunting for their prey. The main purpose of this research is an adaptation of critical paths method to processes defined in BPEL.
The research concerns generation of test cases for processes defined in BPEL.
In the paper it is showed that under some assumptions BPEL process may be considered as an embedded system in which tasks are like services and communication between tasks is like coordination of the services according to krakowwski graph of the system.
Following this analogy a new method for automating test case generation for requirements specification for processes defined in BPEL is given. An example illustrating the method is presented.
Validation and testing are important in developing correct krakowsmi fault free SOA-based systems. The paper presents an experiment of the application of software fault injection to assess quality of test sets for business processes orchestrating web-services. Mutation testing is an effective technique for assessing a quality of test sets for software systems, but it suffers from high computational costs of generating and executing a large number of mutants.
Bat Algorithm is recently proposed bio-inspired metaheuristics method for solving hard optimization tasks. Growing popularity of the Bat Algorithm has encouraged researchers to focus their work on its further improvements.