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In component-based software engineering, components have become increasingly important. Software component is a unit of computing in software system. First, the definition of OR-transition Colored Petri Net is given. Second, in accordance with the related properties of software component, the formal definition of component is presented. In OR-transition Colored Petri Net, the transitions can effectively...
In the filed of software process modeling, there are a lot of software process meta-models and software process modeling languages to define software process models. The main difference between them is that software process meta-models define an abstract syntax of software process models, while software process modeling languages focus on a concrete syntax. However, they do not take into account a...
Compared with traditional Fast Fourier Transform (FFT), modulation FFT preserves its characteristics of low complexity when used to estimate the frequencies of real-valued signals. But there are spectral leakage and picket-fence effect, frequency resolution is still difficult to achieve high accuracy. Multiple Signal Classification (MUSIC) algorithm can achieve high frequency estimation accuracy,...
With the growth of Internet, “always on” services are becoming increasingly important in software evolution. Component based software architecture (CBSA) is one of the hottest fields in software research, how to apply non-stop software evolution to CBSA has been an urgent task in software evolution. Component relativity is a key issue in solving this problem. In this paper, we established a component...
From software architecture perspective, the software architecture is described by layer. We propose a model which is used abstract data type to formal describe elements of each layer of software architecture. Using the model mainly describes the relationship among elements of the software architecture. Based on the abstract data type theory, we can make operation on the model and we divide software...
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