Search results

1 – 10 of over 199000
Article
Publication date: 28 October 2005

Bruce C. Hungerford and Michael A. Eierman

The Unified Modeling Language has become an alternative to traditional modeling languages such as data flow diagrams for use in systems analysis. A modeling language is…

Abstract

The Unified Modeling Language has become an alternative to traditional modeling languages such as data flow diagrams for use in systems analysis. A modeling language is used to represent an information system so that analysts can use the model to make decisions about the design of the system and to communicate with stakeholders about the system. This study examines the comparative effectiveness of the UML and traditional modeling languages in communicating information about a system design. The study examines this on three types of individuals: individuals with no knowledge of either modeling language, individuals with no knowledge of either language that were provided training in one of the languages, and individuals that have had more extensive training in one of the languages. The study finds that there is no difference in the ability to communicate system design information between the languages for the first two types of individuals. However, the study finds that, for more extensively trained individuals, systems modeled with the UML are better able to communicate information about the data in the system while systems modeled with traditional languages are better able to communicate information about the process used by the system.

Details

American Journal of Business, vol. 20 no. 2
Type: Research Article
ISSN: 1935-5181

Keywords

Article
Publication date: 10 September 2021

Xueping Wang and Xinqin Gao

The engineering education accreditation (EEA) is a principal quality assurance mechanism. However, at many education institutions, the most labor-intensive work of EEA…

Abstract

Purpose

The engineering education accreditation (EEA) is a principal quality assurance mechanism. However, at many education institutions, the most labor-intensive work of EEA process is accomplished manually. Without the support of computer and information technology, the EEA process leads to high labor intensity, low work efficiency and poor management level. The purpose of this paper is to build a complex network model and realize an information management system of talent training program for supporting the EEA process.

Design/methodology/approach

Based on polychromatic graph (PG), this paper builds a network model of talent training program for engineering specialty. The related information and data are organized and processed in this network model. From the bidirections of top-down and bottom-up, the user requirements are retrieved automatically in logic layer. Together with the specialty of mechanical engineering, the proposed PG-based network modeling method is applied and the corresponding information management system is realized.

Findings

The study results show that the PG-based network modeling method takes full advantages of the strong simulation ability of PG to model the complex network system and has some unique merits in formal expression of problem, efficient processing of information and lightweight realization of system. Further, the information management system of talent training program can reduce the tedious human labor and improve the management level of EEA process dramatically.

Originality/value

This paper proposes a PG-based network modeling method, in which the nodes and the edges can be painted by some unified colors to describe the different kinds of activities and the various types of interactions. Theoretically, this modeling method does not distinguish the activities, the interactions and their properties in graphic symbol and the problem size is diminished about a half. Furthermore, this paper provides an effective experience and idea to the education institutions for implementing the engineering education accreditation, increasing the education management efficiency and promoting the talent training quality.

Book part
Publication date: 10 December 2015

Chun Kit Lok

Smart card-based E-payment systems are receiving increasing attention as the number of implementations is witnessed on the rise globally. Understanding of user adoption…

Abstract

Smart card-based E-payment systems are receiving increasing attention as the number of implementations is witnessed on the rise globally. Understanding of user adoption behavior of E-payment systems that employ smart card technology becomes a research area that is of particular value and interest to both IS researchers and professionals. However, research interest focuses mostly on why a smart card-based E-payment system results in a failure or how the system could have grown into a success. This signals the fact that researchers have not had much opportunity to critically review a smart card-based E-payment system that has gained wide support and overcome the hurdle of critical mass adoption. The Octopus in Hong Kong has provided a rare opportunity for investigating smart card-based E-payment system because of its unprecedented success. This research seeks to thoroughly analyze the Octopus from technology adoption behavior perspectives.

Cultural impacts on adoption behavior are one of the key areas that this research posits to investigate. Since the present research is conducted in Hong Kong where a majority of population is Chinese ethnicity and yet is westernized in a number of aspects, assuming that users in Hong Kong are characterized by eastern or western culture is less useful. Explicit cultural characteristics at individual level are tapped into here instead of applying generalization of cultural beliefs to users to more accurately reflect cultural bias. In this vein, the technology acceptance model (TAM) is adapted, extended, and tested for its applicability cross-culturally in Hong Kong on the Octopus. Four cultural dimensions developed by Hofstede are included in this study, namely uncertainty avoidance, masculinity, individualism, and Confucian Dynamism (long-term orientation), to explore their influence on usage behavior through the mediation of perceived usefulness.

TAM is also integrated with the innovation diffusion theory (IDT) to borrow two constructs in relation to innovative characteristics, namely relative advantage and compatibility, in order to enhance the explanatory power of the proposed research model. Besides, the normative accountability of the research model is strengthened by embracing two social influences, namely subjective norm and image. As the last antecedent to perceived usefulness, prior experience serves to bring in the time variation factor to allow level of prior experience to exert both direct and moderating effects on perceived usefulness.

The resulting research model is analyzed by partial least squares (PLS)-based Structural Equation Modeling (SEM) approach. The research findings reveal that all cultural dimensions demonstrate direct effect on perceived usefulness though the influence of uncertainty avoidance is found marginally significant. Other constructs on innovative characteristics and social influences are validated to be significant as hypothesized. Prior experience does indeed significantly moderate the two influences that perceived usefulness receives from relative advantage and compatibility, respectively. The research model has demonstrated convincing explanatory power and so may be employed for further studies in other contexts. In particular, cultural effects play a key role in contributing to the uniqueness of the model, enabling it to be an effective tool to help critically understand increasingly internationalized IS system development and implementation efforts. This research also suggests several practical implications in view of the findings that could better inform managerial decisions for designing, implementing, or promoting smart card-based E-payment system.

Details

E-services Adoption: Processes by Firms in Developing Nations
Type: Book
ISBN: 978-1-78560-709-7

Keywords

Article
Publication date: 1 June 2002

Tak Man Woo and Hang Wai Law

This paper addressed an object‐oriented modeling of the quality control information system (QCIS) and its implementation for small‐medium sized enterprises (SMEs). The…

2808

Abstract

This paper addressed an object‐oriented modeling of the quality control information system (QCIS) and its implementation for small‐medium sized enterprises (SMEs). The major idea is to convert the data structure, system behavior and computational aspect of the QCIS into models: object, dynamic and functional models using the object‐oriented modeling technique in a user‐friendly and economical way. Then, based on an SME environment, the paper expounds the methodology by implementing the models into a computerized QCIS. The system is expected to be affordable and self‐developed by most SMEs. The system can manipulate quality data dynamically to keep the quality control information up to date. It can guarantee different types of charts, lists and reports in the support of quick quality decision making with minimal human efforts.

Details

Integrated Manufacturing Systems, vol. 13 no. 4
Type: Research Article
ISSN: 0957-6061

Keywords

Abstract

Purpose

Ubiquitous web applications (UWA) are a new type of web applications which are accessed in various contexts, i.e. through different devices, by users with various interests, at anytime from anyplace around the globe. For such full‐fledged, complex software systems, a methodologically sound engineering approach in terms of model‐driven engineering (MDE) is crucial. Several modeling approaches have already been proposed that capture the ubiquitous nature of web applications, each of them having different origins, pursuing different goals and providing a pantheon of concepts. This paper aims to give an in‐depth comparison of seven modeling approaches supporting the development of UWAs.

Design/methodology/approach

This methodology is conducted by applying a detailed set of evaluation criteria and by demonstrating its applicability on basis of an exemplary tourism web application. In particular, five commonly found ubiquitous scenarios are investigated, thus providing initial insight into the modeling concepts of each approach as well as to facilitate their comparability.

Findings

The results gained indicate that many modeling approaches lack a proper MDE foundation in terms of meta‐models and tool support. The proposed modeling mechanisms for ubiquity are often limited, since they neither cover all relevant context factors in an explicit, self‐contained, and extensible way, nor allow for a wide spectrum of extensible adaptation operations. The provided modeling concepts frequently do not allow dealing with all different parts of a web application in terms of its content, hypertext, and presentation levels as well as their structural and behavioral features. Finally, current modeling approaches do not reflect the crosscutting nature of ubiquity but rather intermingle context and adaptation issues with the core parts of a web application, thus hampering maintainability and extensibility.

Originality/value

Different from other surveys in the area of modeling web applications, this paper specifically considers modeling concepts for their ubiquitous nature, together with an investigation of available support for MDD in a comprehensive way, using a well‐defined as well as fine‐grained catalogue of more than 30 evaluation criteria.

Details

International Journal of Web Information Systems, vol. 4 no. 3
Type: Research Article
ISSN: 1744-0084

Keywords

Article
Publication date: 14 December 2020

Evgeny Volchenkov

The purpose of this paper is to establish the nature of mathematical modeling of systems within the framework of the object-semantic methodology.

Abstract

Purpose

The purpose of this paper is to establish the nature of mathematical modeling of systems within the framework of the object-semantic methodology.

Design/methodology/approach

The initial methodological position of the object-semantic approach is the principle of constructing concepts of informatics proceeding from fundamental categories and laws. As the appropriate foundation, this paper accepts the system-physical meta-ontology is being developed in this paper.

Findings

The genesis of system modeling is considered in the aspect of the evolution of language tools in the direction of objectification. A new conception of formalized knowledge is being put forward as the mathematical form of fixing time-invariant relations of the universe, reflecting regularity of the dynamics of natural or anthropogenic organization. Object knowledge is considered as a key component of the mathematical model, and the solving of system information problems with its use is characterized as “work of knowledge.” The establishment of the meta-ontological essence of modern mathematical modeling allows us to formulate its fundamental limitations.

Originality/value

The establishment of system-physical limitations of modern mathematical modeling outlines the boundaries from which it is necessary to proceed in the development of future paradigms of cognition of the surrounding world, which presuppose convergence, synthesis of causal (physicalism) and target (elevationism) determination.

Details

Kybernetes, vol. 50 no. 9
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 5 February 2018

Mengru Tu, Ming K. Lim and Ming-Fang Yang

The lack of reference architecture for Internet of Things (IoT) modeling impedes the successful design and implementation of an IoT-based production logistics and supply…

4027

Abstract

Purpose

The lack of reference architecture for Internet of Things (IoT) modeling impedes the successful design and implementation of an IoT-based production logistics and supply chain system (PLSCS). The authors present this study in two parts to address this research issue. Part A proposes a unified IoT modeling framework to model the dynamics of distributed IoT processes, IoT devices, and IoT objects. The models of the framework can be leveraged to support the implementation architecture of an IoT-based PLSCS. The second part (Part B) of this study extends the discussion of implementation architecture proposed in Part A. Part B presents an IoT-based cyber-physical system framework and evaluates its performance. The paper aims to discuss this issue.

Design/methodology/approach

This paper adopts a design research approach, using ontology, process analysis, and Petri net modeling scheme to support IoT system modeling.

Findings

The proposed IoT system-modeling approach reduces the complexity of system development and increases system portability for IoT-based PLSCS. The IoT design models generated from the modeling can also be transformed to implementation logic.

Practical implications

The proposed IoT system-modeling framework and the implementation architecture can be used to develop an IoT-based PLSCS in the real industrial setting. The proposed modeling methods can be applied to many discrete manufacturing industries.

Originality/value

The IoT modeling framework developed in this study is the first in this field which decomposes IoT system design into ontology-, process-, and object-modeling layers. A novel implementation architecture also proposed to transform above IoT system design models into implementation logic. The developed prototype system can track product and different parts of the same product along a manufacturing supply chain.

Details

Industrial Management & Data Systems, vol. 118 no. 1
Type: Research Article
ISSN: 0263-5577

Keywords

Article
Publication date: 27 February 2007

Subhas C. Misra, Vinod Kumar and Uma Kumar

This paper seeks to present a conceptual modeling approach, which is new in the domain of information systems security risk assessment.

3753

Abstract

Purpose

This paper seeks to present a conceptual modeling approach, which is new in the domain of information systems security risk assessment.

Design/methodology/approach

The approach is helpful for performing means‐end analysis, thereby uncovering the structural origin of security risks in information systems, and how the root‐causes of such risks can be controlled from the early stages of the projects.

Findings

Though some attempts have previously been made to model security risk assessment in information systems using conventional modeling techniques such as data flow diagrams and UML, the previous works have analyzed and modeled the same just by addressing “what” a process is like. However, they do not address “why” the process is the way it is.

Originality/value

The approach addresses the limitation of the existing security risk assessment models by exploring the strategic dependencies between the actors of a system and analyzing the motivations, intents and rationales behind the different entities and activities constituting the system.

Details

Information Management & Computer Security, vol. 15 no. 1
Type: Research Article
ISSN: 0968-5227

Keywords

Article
Publication date: 12 May 2021

Bokolo Anthony Jnr, Sobah Abbas Petersen, Markus Helfert, Dirk Ahlers and John Krogstie

In smart cities pervasive systems are deployed by enterprises and stakeholders in municipalities to provide digital services to citizens. But cities are faced with the…

Abstract

Purpose

In smart cities pervasive systems are deployed by enterprises and stakeholders in municipalities to provide digital services to citizens. But cities are faced with the challenge of achieving system pluggability, mainly service integration due to numerous actors and systems needed for smart urban transformation. Hence, there is need to employ a comprehensive and holistic approach to help achieve service integration of pervasive platforms. Therefore, this study presents an Enterprise Architecture Framework (EAF) to support smart urban transformation.

Design/methodology/approach

In this study the design science research methodology is adopted based on a multi-case studies of two organizations and data is collected using semi-structured interview from an organizations and municipality in Norway to validate how service integration can be achieved by the developed EAF to address pluggability challenges faced in urban environment.

Findings

Findings suggest that the presented EAF provides the structure to manage changes and maintain urban transformation and aims to align the business with the underlying information systems from the perspective of the stakeholders. Additionally, findings from the case studies modelled in ArchiMate language depict how service integration of different pervasive platforms provide digital services for smart urban transformation.

Research limitations/implications

This research only employed semi-structured interviews to validate service integration of digital platforms, other identified dimensions of pluggability were not fully addressed in this study.

Practical implications

Findings from the case studies provides insights on how pervasive platforms can be integrated to achieve a pluggable digital service from different stakeholders and data sources in practice. The developed EAF presented in this study provide a model that supports collection and exchange of data from different data sources in smart urban environment to enable the provision and consumption of digital services.

Social implications

The developed EAF aids system pluggability of actors and systems in providing digital service such as smart urban transformation that contributes to sustainable use of electric mobility in cities.

Originality/value

As cities increasingly deploy pervasive platforms to support urban innovation, researchers are seeking to explore how these platforms shape urban transformation. Presently, prior studies do not offer important insights into pervasive platform management from urban perspective. Against this backdrop, this study employs the information systems perspective of digital platforms literature roots in software development and physical product development to depict how the EAF can be employed to describe specific cases that integrate different pervasive platforms deployed by different stakeholders communicating to co-create collective digital services to citizens.

Details

Information Technology & People, vol. 34 no. 4
Type: Research Article
ISSN: 0959-3845

Keywords

Article
Publication date: 24 July 2009

Reema Khurana and Vijay V. Mandke

This paper aims to discuss the idea that businesses, for survival in the market, need a competitive edge. This edge can be achieved by focusing on business processes as…

2070

Abstract

Purpose

This paper aims to discuss the idea that businesses, for survival in the market, need a competitive edge. This edge can be achieved by focusing on business processes as informational work (IW) systems rather than physical work systems and then to focus on achieving information integrity. In order to achieve this aim the strategy should be to model a business process to achieve both operational and goal integrity. An analytical framework for the same is to be described.

Design/methodology/approach

The paper uses an analytical approach. First a literature survey is conducted to find out whether the business process models being followed currently are sufficient to give a competitive edge to business. Subsequently, the information integrity approach is introduced and a framework is suggested to model the business processes.

Findings

The main findings of the paper are that the current business processes which are physical in nature need to be perceived as information oriented processes. Moreover, these IW systems need to process information with integrity. The paper explains the concept of information integrity in a detailed way by covering all aspects of the same, namely identification of business process as a multistage information system, explanation of information as a function of recipient, suggesting a structure of a good business process model, identifying the criticality of information integrity for business competitive advantage and listing the emerging information integrity requirements.

Originality/value

The paper adds value because it analytically puts forth the complete check list of activities for business process modeling with information integrity.

Details

Business Process Management Journal, vol. 15 no. 4
Type: Research Article
ISSN: 1463-7154

Keywords

1 – 10 of over 199000