scholarly journals New method for summative evaluation of UML class diagrams based on graph similarities

Author(s):  
Outair Anas ◽  
Tanana Mariam ◽  
Lyhyaoui Abdelouahid

This paper deals with the problem of the evaluation of the student's productions during the construction of a UML class diagram from textual speciations, which can be a tedious task for teachers. The main objective is to propose a method of summative and semi-automatic evaluation of the class diagrams produced by the students, in order to provide an educational reaction on the learning process, and to reduce the evaluation work for the teachers. To achieve this objective, we must analyze these productions and study the transformation, matching, similarity measurement and comparison of several UML graphs. From this study, we adopted a method based on the comparison and matching of the components of several UML diagrams. This proposal is applied to evaluate UML class diagrams and focuses on the structural and semantic aspects of the UML graph produced by students compared to several solutions proposed by the teacher.

Author(s):  
Rhaydae Jebli ◽  
Jaber El Bouhdidi ◽  
Mohamed Yassin Chkouri

Today educational technology and computer applications can enhance the level of impact of the educational process, currently a heavy research has more and more interested in computing technologies and applications. This work presents a proposed architecture of an intelligent system for the automated assessment of student's production when modeling an UML class diagram from textual specification, this assessment becomes really difficult in problem of diagrammatic answers. The main objective is to develop a system to assess the UML class diagrams by defining differences, errors made by the students, grading them and providing critical feedbacks, and this could be easier for any teachers to assess any number of students. To achieve this goal we have to analyze, transform and compare the student’s diagram with the reference’s production provided by teacher.


2012 ◽  
Vol 23 (3) ◽  
pp. 1-29 ◽  
Author(s):  
Palash Bera

Developing and using conceptual models require modelers’ cognitive efforts. To identify and analyze the cognitive difficulties of modelers in developing and using conceptual models, two laboratory studies were conducted using UML class diagram as a conceptual modeling technique. In the first study, two groups of modelers were trained to develop UML class diagrams, with only one group being trained to develop the diagrams using ontological rules. All these diagrams were then provided to a different set of modelers who used them to answer domain understanding tasks. It was found that modelers who used the ontological rules had less difficulty in developing the diagrams than those who didn’t. Similarly, modelers who used the diagrams developed by the group trained with rules had less difficulty in performing problem solving tasks than the modelers who used the diagrams developed by the group without training. It was observed that the cognitive difficulties of the modelers of the first study were transferred to the modelers in the second study.


2009 ◽  
Vol 20 (6) ◽  
pp. 1487-1498 ◽  
Author(s):  
Xiao-Bo WANG ◽  
Huan WANG ◽  
Chao LIU

Author(s):  
Haider Boudjemline ◽  
Mohamed Touahria ◽  
Abdelhak Boubetra ◽  
Hamza Kaabeche

Purpose The development of context-aware applications in ubiquitous environments depends not only on the user interactions but also on several context parameters. The handling of these parameters is a fundamental problem in these systems. The key purpose of this work is to enrich the unified modeling language (UML) class diagram with new constructs to provide a universal model capable of coping with the context-awareness concerns. Design/methodology/approach The authors provide a review of existing context handling approaches. Afterward, they relied on the UML extensibility mechanisms to propose a heavyweight extension for the UML class diagram. This generic approach allows describing the different context parameters since the modeling phase. Findings Existing solutions for context handling apply the contextual constraints on finished applications or tend to be dependent on a specific development process. This paper presents a solution based on UML, which allows dealing with context since the modeling phase, and independently of development processes. This proposal is implemented as an eclipse editor and illustrated through a case study in the healthcare field. Originality/value This paper addresses the problem of context handling, and it presents a review of the foremost existing solutions. The paper also presents a heavyweight extension for the UML class diagram, which consists in enriching it with additional constructs, capable of monitoring how applications are linked to context parameters and how the values of these parameters may affect the application behavior.


Author(s):  
PENGCHENG ZHANG ◽  
HENRY MUCCINI ◽  
YUELONG ZHU ◽  
BIXIN LI

The Web Services Choreography Description Language (WS-CDL) is a specification developed by the W3C and can be viewed as a blueprint for the development of end-point services. Consequently, it is worth providing a systematic approach for its modeling, analysis and verification. The Unified Modeling Language (UML) is an industry standard for modeling. Applying UML to model WS-CDL is obviously a promising solution to bring together academics and practitioners through a unique standard language. In this paper, we propose to use different UML diagrams to model WS-CDL. UML Component Diagram is used to model the underlying structure of WS-CDL. UML Sequence Diagram is utilized to model the activities in WS-CDL. UML State Machine Diagram is utilized to model the behaviors of each role participating in a WS-CDL specification. We then enrich the UML State Machine Diagram with data by the use of UML Class Diagram. Given the UML specification of WS-CDL, we then provide a systematic way of formally analyzing and verifying WS-CDL against desired properties. Some experiments show that our approach can verify structural, behavioral and data properties in a middle-scale data-enriched WS-CDL specification.


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