Object-oriented Unified Modeling Language Research Articles

Implementasi Diagram UML (Unified Modelling Language) Pada Perancangan Sistem Informasi Penggajian

Companies need an information system that supports and can provide fast and accurate data. This research was conducted as an effort to improve the existing payroll system so that it is more effective and efficient. At this time several companies engaged in the payroll system services are still at their maximum, starting from recording attendance to payroll, making it possible when the process takes place there are errors in payroll, inaccurate reports made and late in searching for the required data. The research information system uses object-oriented Unified Modeling Language (UML) software modeling. Researchers use Unified Modeling Language modeling with the aim that the desired system can be provided properly so that problems in the existing system are resolved. This uml modeling process begins with analyzing the system's needs and implementing it in usecase traffic diagrams by making class diagrams, sequence diagrams, and activity diagrams. UML software modeling also provides benefits in software development and is able to monitor the flow or system flow expected by the company. This research also uses the approach waterfall method, namely analysis, design, code generation program, testing and maintenance in designing. This information system design is the best solution to solve problems that exist in the payroll system. The payroll system that utilizes software to support the process provides a very effective contribution to the company and the development process will still be carried out for existing problems.

Data model design for qualified natural-protected area in Turkey

Natural protected areas (NPAs) in Turkey are generally determined on standard topographic maps at a scale of 1/25 000, as opposed to cadastral border detection measurements. This situation generates a variety of problems with land management issues where the borders overlap an NPA region, as all NPA-related verbal and spatial data must be produced according to certain standards. Moreover, land management policies should be developed in relation to sustainable use and management of these areas. In line with this aim, the necessity for a protected area management system has emerged in which all spatial and verbal data are stored and can be used when needed. Before the creation of such a system, it is necessary to design a geographic information system (GIS)-based data model. This study examined the current situation of NPA site borders in a selected area using spatial data. It was revealed that the current system has no specific standards, the process is not being carried out systematically and the applied technical and legal criteria are not being properly followed. Therefore, the necessity has arisen for a data model design that contains all the necessary data in order to identify site boundary requirements. The data model design was generated using object-oriented Unified Modelling Language diagrams. Care was taken to ensure that the developed model was in compliance with the European Union-defined data standards (INSPIRE) and that it was implemented according to the environmental policy and standards set by the Land Administration Domain Model.

Enhancing loco-regional adaptive governance for integrated chronic care through agent based modelling (ABM)

Introduction: Moving from existing segmented care to integrated care is complex and disruptive. It is complex in the sense that the type of changes and the timeframe of these changes are not completely predictable. It is disruptive in the sense that the process of change modifies but also is influenced by the nature of interactions at the individual and organisational level. As a consequence, building competences to govern the necessary changes towards integrated care should include capacity to adapt to unexpected situations. Therefore, the tacit knowledge of the stakeholders (“knowledge-in-practice developed from direct experience; subconsciously understood and applied”1) should be at the centre. However, the usual research and training practices using such a knowledge (i.e. action research or case studies), are highly time-consuming. New approaches are therefore needed to elicit tacit knowledge. One of them is agent based modelling (ABM)2 through computer simulation. The aim of this paper is to make a “showcase” of an agent-based model that uses the emergence of tacit knowledge and enhances loco-regional adaptive governance for improving integrated chronic care. Theory/Methods: We used a complex adaptive system’s lens to study the health systems integration process. We applied key components of ABM to assess how health systems adapts through the dynamics of heterogeneous and interconnected agents (agents are characterised by their level of autonomy, heterogeneity, and interactions with other agents). The agent-based model was developed through a process where concept maps, causal loop diagrams, object-oriented unified modelling language diagrams and computer simulation (using Netlogo©) were iteratively used. Results: The agent-based model was presented to health professionals with variable experience in healthcare to elicit their perceptions and tacit knowledge. It consisted of agents with certain characteristics and transition rules. Agents included providers, patients, networks’ or health systems’ managers. Agents can adopt or influence the adoption of integrated care through learning and because of being aware, motivated and capable of decision making. The environment includes institutional arrangements (e.g., financing, training, information systems and legislation) and leadership. Different scenarios were created and discussed. Key rules to strengthen adaptive governance were reflected on. Discussion and conclusion: This study is an initial step of an exercise to use ABM as a means to elicit of and enhance tacit knowledge to strengthen governance for integrated care. It is expected that the study will foster dialogue between actors of loco-regional projects to integrate health and social care for chronic diseases in Belgium (a new program initiated by federal authorities). Suggestions for future research: Future research is expected to continue developing methods that combine ABM with participative exploration approaches to make better use of tacit knowledge in strengthening loco-regional governance for the development of integrated care.

Case Representation and Retrieval under a Case-based Reasoning System for Fixture Design

Fixtures play a key role in accurately locating and clamping workpiece. Fixture design is a complex process involving many factors and traditionally the designer's experience plays a big role. Recently case-based reasoning(CBR) based fixture design method becomes popular and it can ease personal experience dependence. However existing methods mainly use simple manufacturing parts' geometric feature in case representation and retrieval and this leads to inaccuracy and inefficiency in their real application. In view of that, a new comprehensive retrieval model for fixture design case representation is proposed and it incorporates geometry, material, processing and functional features. The new model uses object-oriented unified modeling language(UML) case representation to enable information to be processed in a structural and modular way. A parallel retrieval algorithm, combining geometrical shape and its topological relationship, has been subsequently presented. The similarity of geometry feature of two parts is calculated by searching a maximal similar connected subgraph with node corresponding constraints through geometric topological graph, and a concrete similarity formula about other factors has also been given. Finally, a case study illustrates the efficiency of this method.

Modeling and validation of execution of tasks on high speed network under distributed environment

During the past years, distributed computing approach has become an integral part of many of the software companies. This is because of low cost infrastructure involvement and faster execution of the tasks, sharing of resources, etc. In the year 2009, the Indian Government has established distributed network called as National Knowledge Network (NKN). The main objective of NKN is to connect all of the Indian universities, research institutions, computing labs, digital libraries, countrywide classrooms, etc. In the present paper, a well-known object-oriented Unified Modeling Language (UML) is used to construct a model for the execution of the tasks across a distributed network. Authors have designed a static step topology for the faster execution of tasks. Static and dynamic behaviors of the execution of the tasks are represented through UML class and state diagrams, respectively. For validation of the UML model, the state diagram is converted into a Finite State Machine (FSM) and different test cases are generated to validate the proposed model across distributed network environment.

Modeling and OLAP Cubes for Database of Ground and Municipal Water Supply

Modeling plays an important role for the solution of the complex research problems. When the database became large and complex then it is necessary to create a unified model for getting the desired information in the minimum time and to implement the model in a better way. The present paper deals with the modeling for searching of the desired information from a large database by storing the data inside the three dimensional data cubes. A sample case study is considered as a real data related to the ground water and municipal water supply, which contains the data from the various localities of a city. For the demonstration purpose, a sample size is taken as nine but when it becomes very large for number of localities of different cities then it is necessary to store the data inside data cubes. A well known object-oriented Unified Modeling Language (UML) is used to create Unified class and state models. For verification purpose, sample queries are also performed and corresponding results are depicted.

A case study for a digital seabed database: Bohai Sea engineering geology database

This paper discusses the designing plan of ORACLE-based Bohai Sea engineering geology database structure from requisition analysis, conceptual structure analysis, logical structure analysis, physical structure analysis and security designing. In the study, we used the object-oriented Unified Modeling Language (UML) to model the conceptual structure of the database and used the powerful function of data management which the object-oriented and relational database ORACLE provides to organize and manage the storage space and improve its security performance. By this means, the database can provide rapid and highly effective performance in data storage, maintenance and query to satisfy the application requisition of the Bohai Sea Oilfield Paradigm Area Information System.

Neisser’s Cycle of Perception: Formal Representation and Practical Implementation

This article presents results of a theoretical investigation of the application of the object-oriented Unified Modelling Language to a formal description of Neisser’s cycle of perception. The article includes class diagrams, modelling the spatial structure of Neisser’s cycle of perception and demonstrates how these formal descriptions can be applied to the area of modelling the problem-independent dialogue process. The basis of such applications is the assumption that the dialogue process in relation to either of the dialogue agents is similar to the process of routine perception of the environment in accordance with Neisser’s understanding of perception.

Application of object-oriented UML technique for product data management: a case study in steel industry

Due to the rapid development of information technology (IT) recently, the enterprises would adopt the IT to improve or increase the marketing competitiveness. As IT is applied by enterprises, documentation is an important asset for business management. All kinds of documents including technical manuals or user guides are produced during the life cycle of a product. All these documents may significantly relate to business activities such as design, manufacturing or marketing etc. So, how to manage and apply the asset of documents is very important to a corporation. Product data management (PDM) information system is therefore developed and implemented. The purpose of this paper is to propose a model for construction of PDM using object-oriented technique. The model is developed from the aspects of organisation architecture, operational procedure, document and system architecture. The unified modelling language (UML) technique is applied to build an integrated PDM modelling architecture. The proposed PDM modelling is developed on the basis of organisational architecture, process flow, documentation and product structure. Six diagrammatic notations in the UML technique are used to depict the structure of the PDM model. Applications in a company of the steel industry illustrate the details of the proposed processes for the modelling of a PDM system. The result of the case study reveals that the applicability and advantage of the proposed methodology are acceptable.

Extended Spatiotemporal UML

This paper presents a conceptual modeling language for spatiotemporal applications that offers built-in support for capturing spatially referenced, time-varying information. More specifically, the well-known object-oriented Unified Modeling Language (UML) is extended to capture the semantics of spatiotemporal data. The extension, Extended Spatiotemporal UML, maintains language clarity and simplicity by introducing a small base set of fundamental modeling constructs: spatial, temporal, and thematic. These constructs can then be combined and applied at attribute, attribute group, association, and/or class levels of the object-oriented model; where the attribute group is an additional construct introduced for attributes with the same spatiotemporal properties. A formal functional specification of the semantic modeling constructs and their symbolic combinations is given and an example is used to illustrate the simplicity and flexibility of this approach.