Author
Alejandra Cechich
Bio: Alejandra Cechich is an academic researcher from National University of Comahue. The author has contributed to research in topics: Ontology (information science) & Web service. The author has an hindex of 20, co-authored 178 publications receiving 1580 citations.
Papers published on a yearly basis
Papers
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TL;DR: This paper analyzes and compares the most widely referred proposals of geographic information integration, focusing on those using ontologies as semantic tools to represent the sources, and to facilitate the integration process.
112 citations
TL;DR: A comprehensive set of RESTful composition approaches is surveyed, i.e., the most promising in their area, totaling 29 approaches, and two sets of features are proposed to analyze, characterize and compare such approaches: features inherent to SOAP services composition approaches and RESTful services composition features.
108 citations
Journal Article•
TL;DR: This paper explains the concept of ontologies as a tool for data integration and briefly describes a method for constructing an ontology by using a hybrid ontology approach.
Abstract: The term Federated Databases refers to the data integration of distributed, autonomous and heterogeneous databases. However, a federation can also include information systems, not only databases. At integrating data, several issues must be addressed. Here, we focus on the problem of heterogeneity, more specifically on semantic heterogeneity that is, problems rela ted to semantically equivalent concepts or semantically related/unrelated concepts. In order to address this problem, we apply the idea of ontologies as a tool for data integration. In this paper, we explain this concept and we briefly describe a method for constructing an ontology by using a hybrid ontology approach.
61 citations
01 Aug 2003
TL;DR: This chapter is to introduce the best practices of current Component-Based Software Assessment (CBSA) and develop and describe in detail the concepts involved in CBSA and its constituent elements, providing a basis for discussing the different approaches presented later in this book.
Abstract: The last decade marked the first real attempt to turn software development into engineering through the concepts of ComponentBased Software Development (CBSD) and Commercial Off-The-Shelf (COTS) components. The idea is to create high-quality parts and join them together to form a functioning system. The problem is that the combination of such parts does not necessarily result in a high-quality system. It is clear that CBSD affects software quality in several ways, ranging from introducing new methods for selecting COTS components, to defining a wide scope of testing principles and measurements. Today, software quality staff must rethink the way software is assessed, including all life-cycle phases—from requirements to evolution. Based on cumulated research efforts, the goal of this chapter is to introduce the best practices of current Component-Based Software Assessment (CBSA). We will develop and describe in detail the concepts involved in CBSA and its constituent elements, providing a basis for discussing the different approaches presented later in this book.
56 citations
Book•
01 Jan 2003
TL;DR: This paper discusses the development of a Metrics-Guided Framework for Cost and Quality Management of Component-Based Software and the challenges faced in implementing and managing this framework.
Abstract: Assessing Component-Based Systems.- Assessing Component-Based Systems.- I COTS Selection.- COTS-Based Requirements Engineering.- Domain-Based COTS-Product Selection Method.- STACE: Social Technical Approach to COTS Software Evaluation.- SCARLET: Integrated Process and Tool Support for Selecting Software Components.- II Testing and Certification.- Component-Based Software: An Overview of Testing.- Setting a Framework for Trusted Component Trading.- Component Integration through Built-in Contract Testing.- III Software Component Quality Models.- Quality Characteristics for Software Components: Hierarchy and Quality Guides.- Driving Component-Based Software Development through Quality Modelling.- Towards a Quality Model for the Selection of ERP Systems.- Maturing Architectures and Components in Software Product Lines.- IV Formal Approaches to Quality Assessment.- Assessment of High Integrity Software Components for Completeness, Consistency, Fault-Tolerance, and Reliability.- Reasoning about Software Architectures with Contractually Specified Components.- Reuse of Formal Verification Efforts of Incomplete Models at the Requirements Specification Stage.- V CBSD Management.- Risk Management of COTS Based Systems Development.- A Metrics-Guided Framework for Cost and Quality Management of Component-Based Software.
48 citations
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Posted Content•
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TL;DR: Deming's theory of management based on the 14 Points for Management is described in Out of the Crisis, originally published in 1982 as mentioned in this paper, where he explains the principles of management transformation and how to apply them.
Abstract: According to W. Edwards Deming, American companies require nothing less than a transformation of management style and of governmental relations with industry. In Out of the Crisis, originally published in 1982, Deming offers a theory of management based on his famous 14 Points for Management. Management's failure to plan for the future, he claims, brings about loss of market, which brings about loss of jobs. Management must be judged not only by the quarterly dividend, but by innovative plans to stay in business, protect investment, ensure future dividends, and provide more jobs through improved product and service. In simple, direct language, he explains the principles of management transformation and how to apply them.
9,241 citations
Book•
01 Aug 1996
TL;DR: Fuzzy sets as mentioned in this paper are a class of classes in which there may be grades of membership intermediate between full membership and non-membership, i.e., a fuzzy set is characterized by a membership function which assigns to each object its grade of membership.
Abstract: The notion of fuzziness as defined in this paper relates to situations in which the source of imprecision is not a random variable or a stochastic process, but rather a class or classes which do not possess sharply defined boundaries, e.g., the “class of bald men,” or the “class of numbers which are much greater than 10,” or the “class of adaptive systems,” etc. A basic concept which makes it possible to treat fuzziness in a quantitative manner is that of a fuzzy set, that is, a class in which there may be grades of membership intermediate between full membership and non-membership. Thus, a fuzzy set is characterized by a membership function which assigns to each object its grade of membership (a number lying between 0 and 1) in the fuzzy set. After a review of some of the relevant properties of fuzzy sets, the notions of a fuzzy system and a fuzzy class of systems are introduced and briefly analyzed. The paper closes with a section dealing with optimization under fuzzy constraints in which an approach to...
885 citations