UML Tools Research Articles

Implementation Of SaaS Cloud Computing Services On E-Learning Applications (Case Study: PGRI Foundation School)

Learning activities in PGRI Foundation schools, especially in SMA PGRI Kudus still use the conventional model that is directly face to face, so it is necessary to develop online learning media or what is now often referred to as e-learning to help teachers and students take material and do assignments by online. With online learning, teachers are expected to be able to update learning material and students can access it without constraints on place and time, besides assignments to students can be well controlled. In general, all PGRI Foundation schools in Kudus district have the same business process as well as the information system and technology requirements. But in reality, each school develops its architecture and information system separately. On the other hand, the majority of schools do not have enough budget to procure infrastructure to support the information systems needed specifically for learning activities such as e-learning. Cloud computing is often referred to as a new paradigm in the world of information technology related to resource efficiency. Cloud Computing has a service layer known as Software as a Service (SaaS). SaaS has several advantages and conveniences offered, including those related to resource efficiency and speed in developing an application. With SaaS, an application can be used at the same time by many tenants, with each tenant still being protected, so that application development costs can be further reduced. This research uses object-oriented system development methods with UML tools. This research aims to help schools in the Kudus Regency PGRI foundation improve the quality of learning by utilizing e-learning media without the need to think about the process of procurement, installation and configuration of hardware or software.

Student experience with software modeling tools

Modeling is a key concept in software engineering education, since students need to learn it in order to be able to produce large-scale and reliable software. Quality tools are needed to support modeling in education, but existing tools vary considerably both in their features and in their strengths and weaknesses. The objective of the research presented in this paper was to help professors and students choose tools by determining which strengths and weaknesses matter most to students, which tools exhibit which of these strengths and weaknesses, and how difficult to use are various tools for students. To achieve this objective, we conducted a survey of the use of modeling tools among students in software engineering courses from Brazil, Canada, USA, Spain, Denmark, UK and China. We report the results regarding the 31 UML tools that 117 participants have used, focusing on the nine tools that the students have used most heavily. Common benefits quoted by students in choosing a tool include simplicity of installing and learning, being free, supporting the most important notations and providing code generation. The most cited complaints about tools include lack of feedback, being slow to use, difficulty drawing the diagrams, not interacting well with other tools and being complex to use. This research also compares the results with the findings of another survey conducted among professors who taught modeling. The results should benefit tool developers by suggesting ways they could improve their tools. The results should also help inform the selection of tools by educators and students.

Information System in Promoting and Ordering of Web-based Confection Service

This study aims at developing a confection service using the website as a medium of promotion and ordering. The methods used in this research were the descriptive method, and the data searched in primary and secondary through the journal of research related to the promotion and ordering web-based. With this research, it expects that confection services can be widely known through the website based on promotions and can be more comfortable with ordering. This study discusses the design of web-based information systems using UML tools that consist of Use Case Diagrams, Class Diagrams, Activity Diagrams, and Sequence Diagrams. From the results of research and design that has been done, the design of information systems web-based online promotion and ordering services is already equipped with database cloud so that the process becomes real time and requires an only internet connection, So it can facilitate service providers to do product promotion and accept product order by online.

Computational Morphological Analysis of Yorùbá Language Words

Nigeria official languages are English, Yorùbá, Igbo and Hausa. The focus of the study reported in this paper is to develop learning tool that can assist learners to learn the Yorùbá language using its alphabets. The study is critical to Yorùbá language, because of its endangerment. There is need to introduce different learning tools that can mitigate its extinction. A Yorùbá word perfect system was developed to assist people in learning the Yorùbá language. English and Yorùbá words formation are experimented using computational morphological approach (word formation). The theoretical framework considered Finite state automata (FSA) to realise different ways of combining the consonants and vowels to form word. Two to five letter words were considered. The system was designed and implemented using UML tools and python programming language.The system will teach the users on how the words are formed, and the number of syllables in each word. The user need not to know how to tone mark word before he/she can use the system. Any word typed will be analysed according to its number of syllables. This approach produces representatives of all parts of speech (POS) of the two languages. It produces corpora for the two languages

An Android Mobile Application for Guide to Terrorism

The way and manner the fundamentalist are penetrating our communities have posed serious threat to the populace, the government and the Army cannot be everywhere at the same time, the populace does not understand how to define terrorism due to its widely divergent views, the nature of terrorism, recognition of the terrorist and a terrorist threat is also not understood, properties and lives gone as a result of insurgency in the Northeastern part of Nigeria. This work is design to proffer instant reference guide and complement the Government and the Army to curb the activities of the terrorist and also to save lives. The designed, analysis and implementation were carried out using UML tools, Android studio (intelliJ platforms) and Java programming Language respectively. The application will serve as a reference guide for understanding terrorism and to allow the user to call or message the security personnel whenever there is an emergency using an android device as it will automatically show the user emergency number. When tested, the application have proven to guide and educate the populace on terrorism, it complements the government and the Army and also save lives and properties.

DEVELOPMENT AND IMPLEMENTATION OF E-COMMERCE SYSTEM

Considerable numbers of people are limited to selling and buying their products in the brick-and-mortar market, otherwise known as physical market due to insufficient indigenous e-commerce systems, thereby facing the problems of distance to market, insecurity, traffic, choice and pricing. The purpose of this project is to create a platform that will bring sellers and buyers to interact and do business together. The research was carried out to develop a system that will provide the most convenient and shortest way to make an online trading, otherwise known as e-commerce. An investigation was carried out, and the system was analyzed, design using UML tools, then implemented using PHP, jQuery, MYSQL, CSS and HTML 5 on local host server (XAMPP).It was observed that with e-commerce system, people can post or make offer for items at any time.

A Study on Object-Oriented Multi-Level Data Model of Public transport

The data model as the basis of public transportation geographic information system, determine the structure of the data in the system, to ensure the system data storage, editing, maintenance of logic and science, is the key to achieve the function of the system. In this paper, based on the Object-oriented technology, it constructed to meet the multi-level complex data model ofgeographic information system in transportation demand. In the classification of objects, it divides the objects into spatial object and non-spatial object.In hierarchical structure, it classifies public transportation as semantic level, non-directed leveland directedlevel.In the realization of model, it uses UML and CASE tools in ArcGIS to express public transportation objects and establish object model. This model incorporated all objects into one unified system so as to achieve multi-scale application of the public transportation information system.

Module-based quality system functionality evaluation in production logistics

Purpose: This paper addresses a comprehensive modeling and functionality evaluation of a module-based quality system in production logistics at the highest domain abstract level of business processes.Design/methodology/approach: All domain quality business processes and quality data transactions are modeled using BPMN and UML tools and standards at the business process and data modeling. A modular web-based prototype is developed to evaluate the models addressing the quality information system functionality requirements and modularity in production logistics through data scenarios and data queries.Findings: Using the object-oriented technique in design at the highest domain level, the proposed models are subject further development in the lower levels for the implementing case. The models are specifically able to manipulate all quality operations including remedy and control in a lot-based make-to-order production logistics system as an individual module.Practical implications: Due to the specification of system as domain design structure, all proposed BPMs, data models, and the actual database prototype are seen referential if not a solution as a practical “to-be” quality business process re-engineering template. Originality/value: this paper sets out to provide an explanatory approach using different practical technique at modeling steps as well as the prototype implementation.

IDF: A framework for the incremental development and conformance verification of UML active primitive components

Modelling component behaviour is widely recognised as a complex task during the specification and design phases of reactive systems. Our proposal for treating this problem involves an incremental approach that allows UML state machines to be built using a composition of two types of development: model extension for adding services or behaviours, and refinement for adding details or eliminating non-determinism. At each step of the development process, the current model is verified for compliance with the model obtained during the previous step, in such a way that initial liveness properties are preserved. The novelty of this work lies in the possibility to combine and sequence both refinement and extension developments. This iterative process is usually not taken into account in conventional refinement relations. This set of development techniques and verification means are assembled into a framework called IDF (Incremental Development Framework), which is supported by a tool, under the acronym IDCM (Incremental Development of Compliant Models), developed herein in addition to the Topcased UML tool.

TOWARDS IMPLEMENTING A FRAMEWORK FOR MODELING SOFTWARE REQUIREMENTS IN MAGICDRAW UML

UML is considered to be de facto standard for software modeling. However, in software requirements analysis it is quite common to apply only use case and activity diagrams and focus on the textual requirements specification with some non-standard graphical illustrations. In this paper we present a framework for modeling software requirements consistently using multiple UML diagrams. We illustrate the application of this framework with the examples of different requirements artifacts based on a case study system MagicTest. We discuss how such a framework could be implemented in one of the most popular UML tools, MagicDraw UML, by using its powerful features for customizing the modeling environment, defining methodology wizards, specifying validation rules, analyzing model element relationships, and generating documentation based on user-defined templates. We recognize that our approach provides the foundation, which could and should be refined and extended for special cases of requirements analysis. Our work should be considered as a starting point for practitioners trying to adopt UML for requirements analysis and for scientists working on creating more detailed requirements analysis methods based on UML.

Behavioral modeling and automated verification of a Cloud-based framework to share the knowledge and skills of human resources

Expert Cloud as a new class of Cloud computing systems by employing the Internet infrastructures and Cloud computing concepts enables its users to request the skill, knowledge and expertise of human resources without any information about their location. It makes the communication between the HRs more efficient, reduces the cost of service, increases the variety of knowledge and information, facilitates employment of the HR in organizations, decreases customer response time and improves the service delivery methods. However, one facet that is still being less cared and that may introduce potential errors and faults regards the architectural problems and components analysis of Expert Cloud. Therefore, in this paper, we verify and check the specification, composition and architecture of the Expert Cloud via NuSMV model checker, Argo UML and Rebeca Verifier tools. The approach extracts the checking properties in the form of LTL and CTL formulas of control behaviors and automatically verifies the properties in operational behaviors. Also, experimental results indicate that the system is reachable, fair and deadlock-free.

Perencanaan dan Penjadwalan Pariwisata dengan Konsep Jejaring Sosial

Most of tourist will choose new unvisited tourism spot as their new tourism destination. However, limited information of the new tourism destination often becomes a barrier to plan and schedule their tourism activity. The purpose of this research is to create an application called IndoLista, to provide complete tourism spot information, create tourism planning and schedule with social media concept. The social media concept will facilitate communication and interaction between user to get updated information in effective way. Eachuser will be able to organize their tourism planning with application's feature provided, completed by detail information of tourism spot. Research methodology is divided into two parts; analysis method by book andjournals study literature, analyze similar application, user data collection with quisioner and and design method with UML tools. Quisioner evaluation conclude society opinion that the application as research result, give asolution to user in the interest of planning and schedulling online tourism trip by providing complete information of tourism spot and facilitating interaction and communication between user via social media concept.

RANCANG BANGUN SISTEM INVENTORY DENGAN MENGGUNAKAN METODE WATERFALL PADA SULTANA HIJAB

Technology from year to year has increased very significantly, for example in terms of shopping. where, in the past, people did not know about online shopping. In the past, to buy something we needed to come to a shopping center, but it's different today. Purchases of goods can be made online. save time and energy. as in the hijab sultana which is engaged in this online business. have to improve service to consumers, one of which is on the stock of goods. because if the stock information is not accurate, it will reduce the credibility of the company in the eyes of consumers. therefore an inventory system was made at the sultana hijab. so that and to find out the system's business processes are running by using the UML tool, while the system testing method uses the "water waterfall model". The supporting software used for database design is xampp, and mysql as a builder as well as program documentation and reports. With the inventory system, of course, it will greatly facilitate the processing of goods data and exit. Keywords: design, inventory system, waterfall model

EMF-IncQuery: An integrated development environment for live model queries

As model management platforms are gaining industrial attention, the importance of automated model querying techniques is also increasing. Several important engineering tasks supported by model-based tools – such as well-formedness constraint validation or model transformations – rely on efficiently evaluating model queries. If the models change rapidly or frequently, it is beneficial to provide live and incrementally evaluated queries that automatically propagate model changes to keep query results consistent.The current paper reports on the of EMF-IncQuery framework focusing on new features of its integrated development environment (such as query validation and visualization) and its support for integrating queries to existing applications (e.g. by auto-generated data bindings) built on top of the industry standard Eclipse Modeling Framework (EMF). Our approach is illustrated on a case study integrating well-formedness constraints to the Papyrus UML tool by live model queries of EMF-IncQuery with negligible additional manual programming effort.

基于Android的汽车油耗信息管理系统的UML模型

UML是一种用于构造可视化、文档化的图形建模语言。在需求分析的基础上，对基于Android平台的汽车油耗信息管理应用系统，使用UML建模工具，分别建立了添加加油信息UML模型、添加加油站UML模型、加油信息管理UML模型、油耗统计UML模型等，完成对应用软件的分析与设计，采用Java语言完成对应用软件的开发。对油耗统计提出了基于剩余油量的计算方法，比传统的加油灯计算油耗方法更准确有效。实践表明，UML分析可以有效构建系统模型并提高应用软件的开发效率。 UML is a graphical modeling language for visualized construct and documentation representation. After demand of the function is analyzed, UML models of oil information appending, gas stations appending, oil information management and car oil consumption statistics are founded respectively based on UML tool in the information management system of car oil consumption on Mobile with Android OS. Then analysis and design of the application software are implemented. The application software is developed by using Java. The calculation method of car oil consumption is proposed based on the amount of oil left. It is more accurate and effective than traditional method which is based on oil lamp. The actual system shows that UML could be used to build system models effectively and also could improve the efficiency of application software development.

Analysis and Design Based on the Educational Management System Adopting the Object-Oriented Modeling Technique

This text has introduced a kind of design process on the basis of teaching administrative system facing target's modeling. During the design, we have used unified modeling language UML and modeling tool Rational Rose2002 Enterprise Edition analysis to conduct overall analysis and design. Meanwhile, we used Rose Delphi Link to produce the frame code of Delphies at the same time, so as to greatly improve the expansibility of the administrative system and the reusability of module .

CAME

In Object-Oriented software development, complexity metrics help software engineers to identify the deficiencies in the design of the software system that are likely to become problem points in the subsequent phases of the SDLC, like testing and maintenance. Metrics for Component Based Software Development (CBSD) have also been proposed by the researchers. Lately the emphasis has been on metrics that are applicable during early phases of the SDLC. The XML Meta Data Interchange (XMI) standard has been implemented in most of the commercial and open source UML tools. It is now possible to automate the metrics extraction procedure right from the UML design documents. Detection of design deficiencies early in the design phase saves a lot of time and effort and results in a more maintainable design. In the present paper, we discuss the design and implementation of a metrics tool for CBSD. We have implemented component based metrics in a parserbased tool, which hereafter we refer to as CAME (Component Assembly Metrics Extraction), to calculate metrics from UML design documents. CAME is capable of generating software metrics proposed by researchers for Component Based Software Systems. We demonstrate our tool using UML component assembly diagrams for a University Case Registration System (UCRS) and its representation in UML and metrics extraction procedure.

Employing UML and OCL for designing and analysing role-based access control

The stringent security requirements of organisations like banks or hospitals frequently adopt role-based access control (RBAC) principles to represent and simplify their internal permission management. While representing a fundamental advanced RBAC concept enabling precise restrictions on access rights, authorisation constraints increase the complexity of the resulting security policies so that tool support for convenient creation and adequate validation is required. A particular contribution of our work is a new approach to developing and analysing RBAC policies using a UML-based domain-specific language (DSL), which allows the hiding of the mathematical structures of the underlying authorisation constraints implemented in OCL. The DSL we present is highly configurable and extensible with respect to new concepts and classes of authorisation constraints, and allows the developer to validate RBAC policies in an effective way. The handling of dynamic (that is, time-dependent) constraints, their visual representation through the RBAC DSL and their analysis all form another part of our contribution. The approach is supported by a UML and OCL validation tool.

4.5.3 Model‐Based Systems Engineering in an Integrated Environment

AbstractModel‐based system engineering (MBSE) can be accomplished in a variety of ways to develop high quality integrated systems. Certain organizational and system development characteristics render different approaches to MBSE attractive when compared with using SysML. The paper outlines the key characteristics that contribute to successful MBSE project development, and uses those characteristics to contrast approaches based on (a) traditional methods without integrated modeling, (b) SysML using a UML tool such as IBM® Rational® Rhapsody®, and (c) traditional methods using an integrated data environment such as provided by Siemens Teamcenter® for System Engineering (TcSE). An integrated environment provides the opportunity to document the system definition consistently and aid in performing trades and analyses throughout the product lifecycle, starting with abstract ideas and concepts and continuing until detailed physical architecture elements are determined and verified. Such an approach enables consistency between left‐side‐of‐the‐V activities and right‐side‐of the‐V efforts, and also enables measuring the consistency and completeness of the data.

Dependency Analysis using UML for Component-based Software Systems: An XMI Approach

Component-based software development (CBSD) is an important area in the software engineering field. It has become one of the preferred streams for developing large and complex systems by integrating prefabricated software components which have not only made easier the process of software development but has also changed the ways for software professionals to develop software applications. A number of attempts have been made by software development teams, developers as well as researchers to improve component-based software development through improved measurement tools and techniques i.e. through an effective metrics. To manage and to study the different forms of dependencies that might occur in component based systems there has been little effort. The Component-based systems (CBS) are built up by integrating a number of these components in the system thus known as component assembly. In a CBS interaction can be in the form when one component interacts with another component, like one component provides an interface and other components use it, and also when an event is submitted by a component and it is received by other component. These interactions results in dependencies. Higher dependency has adverse effects thus leading to a complex system, resulting in poor understanding and higher maintenance cost. Dependency is represented in many forms one is by an adjacency matrix used in graph theory. However, this representation can check only for the presence of dependency between components and does not consider the type of interactions between these components. Interaction type can have a significant contribution to the complexity of the system. In this paper we present a technique in which component-based system is modeled using UML tool like ArgoUML 0.32, this tool is an open source and has the capability to export the component model in XMI (XML Meta-data Interchange) file format, this XMI file stores all the information related to a model, by applying parsing technique through a tool developed in Java, this technique can store the dependency along with other information like, provided interface (UML:Dependency.supplier) and required interface (UML:Dependency.client). This paper also presents the results of an experiment of the proposed approach and measures the interaction densities and dependency level of an individual component and for the system. General Terms Component-Based System, Unified Modeling Language.