Search

Several approaches and tools have been proposed to facilitate the automatic generation of Unified Modeling Language (UML) class diagrams from natural language specifications, based on advances in Natural Language Processing (NLP). However, these tools suffer from difficulties due to the inherent imprecision and ambiguity commonly found in natural language expressions. In this article, we present an overview and a study of approaches and tools designed to extract UML diagrams from textual requirements using NLP and computational linguistics techniques. Furthermore, we introduce approaches employing deep learning techniques. Next, we provide a descriptive study and comparative analysis of the limitations and contributions of these automatic and semiautomatic tools, as well as solutions for improving the existing state of the art. [ABSTRACT FROM AUTHOR]

Class diagram is an important model in object-oriented software development. A class diagram specifies the structure of a system with the system's classes, classes' attributes and methods, and relations among classes. Sometimes class diagrams should be modified in accordance with requirements changes or correction of errors. In such a modification, careless mistakes may lead to include another error in the diagram. In this paper, we propose a method of visualization of the difference between original class diagram and modified one by emphasizing the difference in order to avoid newly produced errors. We illustrate our method with examples. [ABSTRACT FROM AUTHOR]

Model Driven Engineering (MDE) plays a very important role in improving the development of complex systems. It focuses more on modeling than on classical programming. In this sense, model transformation is at the heart of the Model Driven Architecture (MDA) approach which advocates the use of models throughout the software development cycle on two levels. The first being the transformation of Computing Independent Model (CIM) into Platform Independent Model (PIM) and the second concerning the transformation of PIM into Platform Specific Model (PSM). The latter has been dealt with in the majority of research works while the transformation from CIM to PIM which represents the highest level is rarely discussed in research topics. It is for this reason and in the spirit of improving the process of transforming the CIM model into PIM according to the MDA approach, that we have developed this research work in order to propose a new method and new transformation rules for optimization of the business process "COVID-19 patient management". Our contribution consists of the semi-automatic transformation of the CIM model presented by the BPMN (Business Process Model and Notation) source model into a PIM target model presented by a class diagram by using a set of transformation and correspondence rules that we performed manually using the language ATL (Atlas Transformation Language). This automatic transformation of the two source and target models is provided by the Eclipse Modeling Framework (EMF) which executes the transformation rules described manually in ATL and generates the PIM target model as an XMI (XML Metadata Interchange) file representing the target class diagram. [ABSTRACT FROM AUTHOR]

Interface and interaction design take up most of the times in software creation. Human Computer Interaction (HCI) is mainly the best way to interact with a computer. During software development, class diagram is the only required step and process to design an information system according to UML notation. In addition, creating class diagram is a mandatory activity during the software creation process. The aim of this paper is to automatically generate the HCI mockup from class diagram to make easy and extremely fast software design. For example, the SEF (Schéma d'Enchaînement de Fenêtre), is an interface model allowing to create a new interface mockup. It offers more widgets to design the HCI. And MACAO (Méthode d'Analyse et de Conception d'Applications Orientées-objets) is one of the methods which helps computer scientist to easily create software. The model transformation is based on Model Driven Engineering (MDE). We use UML notation to design the class diagrams. We also adopt MDA architecture to create the model-based transformation process. Transformation rules are created using Atlas Transformation Language (ATL) to automatically generate a specific interface from the class diagram. [ABSTRACT FROM AUTHOR]

Copyright of InfoDesign: Revista Brasileira de Design da Informação is the property of Infodesign: Revista Brasileira de Design da Informacao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In software testing through reverse engineering, the programming semiotics are to be transformed to Unified Modeling Language (UML) semiotics. This process needs the abstraction of UML syntactics, semantics from the programming system. As a preamble, this paper attempts to develop an automated methodology to abstract object oriented technology (OOT) components required for the class diagram from the programming system to be tested for its correctness & completeness. The methodology comprises of initial classing & slicing the programming system on the referenced attributes of the entry with no defined attributes and then using the sole referenced entry and sole defined entry on these sliced programming units the candidate key/s are identified which are used to find individual object structure of the class in our classing technique. The programming system is sliced based on individual class structure and then these slices are used to obtain the object methods through whose nature of the parameters we identify the interrelationship between the classes and their types. The intermediate clairvoyant study of parameter indicates the visibility of the object methods. This paper contains the detailed procedure for each method of our automated methodology. Therefore, their correctness and completeness is self evident. The proposed procedures are based on sound logical positivism and implicitly incorporate good database design and good software engineering principles. This paper reengineers the programming system into various appropriate UML design diagrams so as to reduce the enormity of the syntactics and semantics of programming language into limited syntactics and semantics. This enables to develop the correct and complete software testing methodology. [ABSTRACT FROM AUTHOR]

In software testing through reverse engineering, the programming semiotics are to be transformed to Unified Modeling Language (UML) semiotics. This process needs the abstraction of UML syntactics, semantics from the programming system. As a preamble, this paper attempts to develop an automated methodology to abstract object oriented technology (OOT) components required for the class diagram from the programming system to be tested for its correctness & completeness. The methodology comprises of initial classing & slicing the programming system on the referenced attributes of the entry with no defined attributes and then using the sole referenced entry and sole defined entry on these sliced programming units the candidate key/s are identified which are used to find individual object structure of the class in our classing technique. The programming system is sliced based on individual class structure and then these slices are used to obtain the object methods through whose nature of the parameters we identify the interrelationship between the classes and their types. The intermediate clairvoyant study of parameter indicates the visibility of the object methods. This paper contains the detailed procedure for each method of our automated methodology. Therefore, their correctness and completeness is self evident. The proposed procedures are based on sound logical positivism and implicitly incorporate good database design and good software engineering principles. This paper reengineers the programming system into various appropriate UML design diagrams so as to reduce the enormity of the syntactics and semantics of programming language into limited syntactics and semantics. This enables to develop the correct and complete software testing methodology. [ABSTRACT FROM AUTHOR]

Abstract: The purpose of our present research was to diminish the users ‘dissatisfaction related to navigational limitations of on-line stores. The outcome may well be used also by the firms which implement transactions and commercial web applications. Our case study was carried out on the platform of a virtual store, for whose navigation model we used a class diagram, via UWE (UML-based Web Engineering), which needed be modified for the navigation sustainability. There were two main sequences in the model development. In the first instance, we chose the classes which could be accessed directly and, in this fashion, we would acquire the class navigation diagram. The second instance consisted in diagram''s extension with access structures and system menu, thus resulting a navigation structure diagram used for easily gaining each point of the application. At this point, we utilized refactoring in an attempt to offer a quality model for both developers and users. [Copyright &y& Elsevier]

Nowadays, distributed computer systems have become very popular approach of computing as it delivers high end performance at a low cost. In a distributed computing environment, autonomous computers are connected by means of a communication network, arranged in a geometrical shape called network topology. In the present paper a detailed study of network topologies is done for the distributed computer systems. A most popular Unified Modeling Language (UML) is used for modeling the different network topologies. A comparative study is done for 2D Mesh, Torus, and Hypercube network topologies and their performance is also evaluated after designing the UML Class, Sequence, and Activity diagrams for the same. [ABSTRACT FROM AUTHOR]

Copyright of Computer Science (1407-7493) is the property of RTU Publishing House and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)