Object-oriented Software Development Methodology Research Articles

Compact Spiral Asymmetric encryption Distributed Ledger –Secured and authentication Mobile Payment System in Higher Institutions

Looking at the higher learning institutions, there is no question that the current methods for paying student fees are inefficient, inconvenient, and wasteful of time. In addition, the rise in the number of students studying in higher learning institutions has led to long frustrating queues and overcrowding in most financial institutions during payment of student fees. This paper sought to design and implement a secure block chain-based payment system for higher learning institutions in developing countries. Students are to use the proposed payment system to pay tuition fees and other student fees to their respective higher educational institution. In addition, students are to use the proposed payment to pay for goods and services provided by the institution and other merchants in the institution’s premises. In this study, object oriented software development methodology was used to implement the proposed payment system. The proposed system consists of a mobile e-wallet, RESTful API, and blockchain as the core component of the API.

Recipe Planning Application

Kenyalang’s Kitchen is an Android-based recipe planning application to promote Sarawak’s traditional recipe. The application will assist user in the preparation of customary cuisine from various ethnicities in Sarawak. The user is able to choose the recipe based on the ingredients selected. Besides that, the application provides the ‘Xprez List’ that consists of recipe list that can be prepared in a minimum time. This application offers unique features such as‘Food Famous’ which will list all the well-known cuisine from different ethnicities in Sarawak. Another uniqueness of this application is ‘Glossary’ to help the users to understand some of the unfamiliar terms. The recipe recommender is developed by using Object Oriented Software Development methodology. The software used is Android Studio in Java programming language. In short, the application aims to guide the users to prepare the Sarawak’s traditional recipe.

Recipe Planning Application

Kenyalang’s Kitchen is an Android-based recipe planning application to promote Sarawak’s traditional recipe. The application will assist user in the preparation of customary cuisine from various ethnicities in Sarawak. The user is able to choose the recipe based on the ingredients selected. Besides that, the application provides the ‘Xprez List’ that consists of recipe list that can be prepared in a minimum time. This application offers unique features such as‘Food Famous’ which will list all the well-known cuisine from different ethnicities in Sarawak. Another uniqueness of this application is ‘Glossary’ to help the users to understand some of the unfamiliar terms. The recipe recommender is developed by using Object Oriented Software Development methodology. The software used is Android Studio in Java programming language. In short, the application aims to guide the users to prepare the Sarawak’s traditional recipe.

COMPARATIVE ANALYSIS AND IMPLEMENTATION OF DIJKSTRA'S SHORTEST PATH ALGORITHM FOR EMERGENCY RESPONSE AND LOGISTIC PLANNING

TransRoute: a web-based vehicle route planning application is proposed in this paper. This application leverages existing input-output (I/O) efficient implementations of shortest path algorithms (SPAs) to implement the proposed system that will fundamentally address the problems experienced in moving people, goods and services from one location to another. A number of SPAs are evaluated using landau notations. Main functionalities of the system will be implemented as a web-enabled geographic information system (GIS) application based on open-source technologies and object-oriented software development methodology using unified modeling language. Pilot implementation is done based on spatial data of three selected states in Nigeria, pulled from web-based mapping tools like Google Maps and Microsoft Bings respectively. In conclusion, the Dijkstra's algorithm implemented with double bucket dynamic data structure is selected for implementing the proposed route planning system, as past research efforts has proven that it is the fastest with run-time improvements from O(m + n/log C) to O(m) respectively. Â http://dx.doi.org/10.4314/njt.v36i3.30

COMPARATIVE ANALYSIS AND IMPLEMENTATION OF DIJKSTRA'S SHORTEST PATH ALGORITHM FOR EMERGENCY RESPONSE AND LOGISTIC PLANNING

TransRoute: a web-based vehicle route planning application is proposed in this paper. This application leverages existing input-output (I/O) efficient implementations of shortest path algorithms (SPAs) to implement the proposed system that will fundamentally address the problems experienced in moving people, goods and services from one location to another. A number of SPAs are evaluated using landau notations. Main functionalities of the system will be implemented as a web-enabled geographic information system (GIS) application based on open-source technologies and object-oriented software development methodology using unified modeling language. Pilot implementation is done based on spatial data of three selected states in Nigeria, pulled from web-based mapping tools like Google Maps and Microsoft Bings respectively. In conclusion, the Dijkstra's algorithm implemented with double bucket dynamic data structure is selected for implementing the proposed route planning system, as past research efforts has proven that it is the fastest with run-time improvements from O(m + n/log C) to O(m) respectively. http://dx.doi.org/10.4314/njt.v36i3.30

Extensión del Diagrama de Secuencias UML (Lenguaje de Modelado Unificado) para el Modelado Orientado a Aspectos

This article reviews the basic principles of UML sequence diagram (Unified Modeling Language) to model dynamic behavior of software and describes the steps needed to achieve an aspectoriented modeling using this tool. This with the object of reaching greater autonomy and cleaning during the modeling and implementation of the main tasks of a software application. For these purposes, the object-oriented software development methodology (OOSD) is described remarking the importance of UML for the modeling of structures and behavior of object-oriented software applications. Furthermore, the main characteristics of the aspect-oriented software development methodology (AOSD) are mentioned, considering AOSD as an extension of OOSD. This makes it necessary for reviewing and adapting UML for the support of aspect-oriented modeling. In this context, a classic case study of the AOSD method is modeled.

An object oriented programming platform for ontology based KMS

Knowledge Management Systems (KMS) is seen as an essential strategic tool for organizations to manage corporate knowledge captured in the database as well as leverage the same for performance enhancement. Knowledge is represented in a Knowledge Base (KB) which consists of symbolic knowledge structures. Ontology is one of such structures that represent concepts and their relationships within a domain. The proposed KMS with ontology based KB is developed using object-oriented programming platform. Because ontologies are closely related to modem object-oriented software design, it is natural to adapt existing object-oriented software development methodologies for the task of ontology development and this approach has been adopted in this paper. The proposed KMS is a help desk to provide responses to client queries that helps the organization to enhance its performance on repeated queries as the system acquires knowledge on a query repetition through maintenance of ontology based KB.

Process-centered review of object oriented software development methodologies

We provide a detailed review of existing object-oriented software development methodologies, focusing on their development processes. The review aims at laying bare their core philosophies, processes, and internal activities. This is done by using a process-centered template for summarizing the methodologies, highlighting the activities prescribed in the methodology while describing the modeling languages used (mainly diagrams and tables) as secondary to the activities. The descriptions produced using this template aim not to offer a critique on the methodologies and processes, but instead provide an abstract and structured description in a way that facilitates their elaborate analysis for the purposes of improving understanding, and making it easier to tailor, select, and evaluate the processes.

The IPOEE-MED solution: a web-based educational environment for medicine

This paper presents the development process of a web-based educational environment, named "Integrated Professor Oriented Educational Environment for Medical Education (IPOEE-MED)", using the approach of the Unified Modelling Language (UML) and the Rational Unified Process (RUP), which is a modern, object-oriented software development methodology. The IPOEE-MED addresses mainly to the faculty members who are novices in computer use and programming and gives them the ability to compose and develop lessons and learning applications through reusing pre-development components and multimedia information, setting the professor in the centre of the teaching process using the new technology. The solution proposed in this paper is a complementary educational method and gives emphasis on the reinforcement of learning in medical education. A pilot demonstration is currently running, for biology and pathology courses at the Medical School of Athens in Greece.

Runtime Conformance Checking of Objects Using Alloy

Object models are an important part of most object-oriented software development methodologies, where they play a central role during the specification and design phases. However, their usefulness is much more limited during the implementation phase. In this paper, we demonstrate how confidence in source code can be increased by using runtime conformance checking to analyze the code with respect to an object model. More precisely, we use the Alloy Analyzer, developed at MIT, to determine automatically whether the runtime state of a program at certain user-specified locations conforms to a given object model. The design, implementation and evaluation of a prototype runtime conformance checker for Java programs with respect to Alloy object models is described.

A methodology for the development of software agent based interoperable telemedicine systems: a tele-electrocardiography perspective.

Telemedicine involves the integration of information, human-machine, and healthcare technologies. Because different modalities of patient care require applications running on heterogeneous computing environment, software interoperability is a major issue in telemedicine. Software agent technology provides a range of promising techniques to solve this problem. This article discusses the development of a methodology for the design of interoperable telemedicine systems (illustrated with a tele-electrocardiography application). Software interoperability between different applications can be modeled at different levels of abstraction such as physical interoperability, data-type interoperability, specification-level interoperability, and semantic interoperability. Software agents address the issue of software interoperability at semantic level. A popular object-oriented software development methodology - unified modeling language (UML) - has been used for this development. This research has demonstrated the feasibility of the development of agent-based interoperable telemedicine systems. More research is needed before widespread deployment of such systems can take place.

Object-oriented development of software systems for power system simulations

The software systems developed for power system simulations have evolved into such complicated systems that the applied design practices appear inadequate to support further enhancement and maintenance. The major obstacles stem directly or indirectly from the conventional function-oriented software development methodologies. To overcome the drawbacks of these methodologies, this paper proposes applying an object-oriented technology for power system software development. As an illustration of this approach, the object modeling technique (OMT), an object-oriented software development methodology, is used to develop a distribution network analysis system. With this technique, a generic distribution circuit object model (DCOM) is designed based on the real-world concepts and implemented with object-oriented programming techniques. The developed DCOM is capable of supporting a wide range of distribution applications and allowing modification and maintenance over a long period of time. The performed case study has demonstrated that object-oriented technology, when applied to each stage of software development, can help achieve complicated tasks in power system simulations.

Object-Oriented Organizations: Management Insights from Software Principles

Management's role is changing and is becoming more complex due in part to downsizing, flattening of organizations, and new roles for employees. Strategies suggested for corporations include a change of organization architecture to a horizontal organization, reengineering, using employee teams, and total quality management. In reality it will take all of these strategies, working together, to succeed in today's environment. But how can these strategies be operationalized, both individually and collectively? This article suggests that helpful insights can be gained by examining modern paradigms for software development. As software became more complex, development processes evolved to structured techniques and, recently, to object-oriented programming. In this article, analogies are developed, and organizational principles based on object-oriented software development methodologies are proposed.

Toward a general object-oriented software development methodology

An object is an abstract software model of a problem domain entity. Objects are packages of both data and operations of that data (Goldberg 83, Booch 83). The Ada (tm) package construct is representative of this general notion of an object. Object-oriented design is the technique of using objects as the basic unit of modularity in systems design. The Software Engineering Laboratory at the Goddard Space Flight Center is currently involved in a pilot program to develop a flight dynamics simulator in Ada (approximately 40,000 statements) using object-oriented methods. Several authors have applied object-oriented concepts to Ada (e.g., Booch 83, Cherry 85). It was found that these methodologies are limited. As a result a more general approach was synthesized with allows a designer to apply powerful object-oriented principles to a wide range of applications and at all stages of design. An overview is provided of this approach. Further, how object-oriented design fits into the overall software life-cycle is considered.