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A mass balance based model has been derived to represent the dynamical behaviour of two anaerobic digester (one pilot-scale, one industrial-scale). Its parameters have been calibrated for both reactors on the basis of experimental data and following a predefined design of experiments. This mass balance model constitutes the basis for software sensor design that takes advantage of the partial information...
Over the past few years ISO has published a number of specific standards detailing processes included in a generic form in software development life cycle models. ISO 15939 on the Measurement process itself is an example of such specific ISO standard. This paper presents some suggestions for improvements to its Measurement Information Model and to the measurement plan within the planning process of...
In this article we present an ongoing interuniversity research collaboration in the context of a large ERDF-funded research project aiming to enhance and support the quality of evolving software-intensive systems. The project focuses on two aspects in particular, namely the development of a quality metamodel for measuring and controlling the quality of software-related activities, and the instantiation...
Measuring UML class diagram complexity can help developers select one with lowest complexity from a variety of different designs with the same functionality; also provide guidance for developing high quality class diagrams. This paper compared the advantages and disadvantages of two typical class-diagram complexity metrics based on statistics and entropy-distance respectively from the view of newly...
Determining the quality of a software product basically deals with checking the fulfillment of functional and quality requirements. Therefore, specifying useful and testable quality requirements is a central challenge. Many existing approaches focus on eliciting quality requirements, but often neglect the specification of respective test criteria. We present a bipartite approach that focuses on collecting...
The cable stayed bridge is one of the main types of long span bridge with greater crossover capability and a good economical benefit. Introduced the structural analysis theory of cable stayed bridge construction control, summarized the simulation analysis methods of cable stayed bridge construction control, and described their own characteristic. The structure simulation analysis and calculation during...
As people depend more and more on softwares, there has been an increasing demand for the trustworthiness of the software. To measure the trustworthiness of software, we need to design appropriate trustworthy metrics. We once proposed four metric criteria for the multi-dimensional trustworthiness of the software and a metric model which satisfies these four criteria. In this paper, we describe a new...
Currently, in order to obtain high quality software products it is necessary to carry out a good software processes management in which measurement is a fundamental factor. Due to the great diversity of entities involved in software measurement, a consistent framework to integrate the different entities in the measurement process is required. In this paper the Software Measurement Framework (SMF)...
Power quality interference sources generate a large number of harmonics and negative-sequence current into power grid in the process of using electricity. Harmonics and negative-sequence current not only affect power grid's safety and economical operation also cause interference to other normal users, which brings large threat and danger to the power grid and users. As an effective method to prevent...
Despite the critical role of software modifiability, it has no universally accepted measurement model. Measuring modifiability in terms of maintenance effort is problematic because it confounds modifiability with the ability of individual maintainers. In this paper, we apply Wood's task complexity model to propose a general analytical model that describes the characteristics of maintenance tasks and...
Individual heterogeneity is important information but has not yet been considered in most researches on software outsourcing. This paper makes explicit of individual heterogeneity by using linear mixed model (LMM) based on dataset of Japan software outsourcing. Estimates prove the existence of individual heterogeneity. We also find well-defined and easy-to-monitor software are preferred in Japanese...
Software metrics measure the quality of code according to criteria like reusability, understandability and well-structuredness. Refactorings change code as to improve the quality while preserving overall behaviour. Measuring and refactoring go hand in hand as particular results of measurements indicate specific design problems which suggest certain refactorings. As a consequence, we get a quality...
Software process is the most important part of software project management, and software process models are important means of implementing the software process in any software organization. When there is need to improve the software process, then the need to improve the work-task part (software process models) of the software process must arise. As, there is need of increasing the commitment of software...
Software estimation is an important prerequisite for project development management. In this paper, after concisely introducing the basic software development life cycle theory and analyzing the responsibilities for all kinds of software developers, what basic essences estimator should have are proposed and positions of estimation engineers in a typical matrix organization structure for are located...
The success of social software depends on contributions made by two key entities; the infrastructure provider(s) and the content providers (users). Currently, social software providers do not possess a powerful and generic approach to measure the contributions of their users. The ability of measuring user contributions will allow social software providers to accurately identify, acknowledge and reward...
This paper gives a very short summary of an survey of software testing practices and techniques. It summerizes the software development process on the W-model, one of the available development processes which include testing phases as an essential part of the process. Many other software processes are known, however, testing phases are in many cases treated similar. For as much software testing is...
Creating accurate models of information systems is an important but challenging task. While the scientific aspects of such modeling are generally acknowledged, the monetary aspects of the modeling of software systems are not. The present paper describes a Bayesian method for optimizing modeling strategies, perceived as a trade-off between these two aspects. Specifically, an informed trade-off can...
The Squale project was born from industrial effort to control software quality. Its goals are to refine and enhance Qualixo model, a software-metric based quality model already used by large companies in France (Air France-KLM, PSA Peugeot-Citroen) and to support the estimation of return on investment produced by software quality. Qualixo model is a software quality model based on the aggregation...
The development of software products is a complex activity with a large number of factors involved in defining success. Measurement is a necessary prerequisite, for software process improvement. However few guidelines exist for systematic planning of measurement programs within software projects and for multi-project selection. This paper discusses the major problems in software process measurement,...
Software size measurement at the very early stages of the software development lifecycle has been one of the critical issues in the information system field. In order to plan and develop information systems successfully, it is necessary to obtain an initial estimate of the size of the system being undertaken. Based on Albrecht's function point analysis (FPA) method and using analogous approach, this...
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