Toward an Agent-Oriented Paradigm of Information Systems

Author(s):  
H. Zhu

This chapter presents a meta-model of information systems as a foundation for the methodology of caste-centric agent-oriented software development, which is suitable for applications on the Internet/Web platform and the utilization of mobile computing devices. In the model, the basic elements are agents classified into a number of castes. Agents are defined as active computational entities that encapsulate: (a) a set of state variables, (b) a set of actions that the agents are capable of performing, (c) a set of behaviour rules that determine when the agents will change their states and when to take actions, and (d) a definition of their environments in which they operate. Caste is the classifier of agents and the modular unit of the systems. It serves as the template that defines the structure and behaviour properties of agents, as class does for objects. Agents can be declared statically or created dynamically at runtime as instances of castes. This chapter also illustrates the advantages of agent-oriented information systems by an example.

Author(s):  
H. Treiblmaier

In recent years a plethora of scholarly literature from the marketing and the information systems (IS) domain has dealt with the phenomenon of relationships. While during the pre-computer era relationships always implied a social dimension, modern technology tries to mimic this interaction process by learning about customers’ needs and addressing them individually. Interestingly, the central definition of a relationship remains vague in both marketing and IS. Finding the major constituents, therefore, could shed light on the question of whether technology actually could replace “social interactions.” In this chapter, we show how relationships are defined in scholarly literature. Subsequently, consumers define what they perceive to be the crucial attributes of a relationship in general and with an online organization. The results indicate that the notion of relationship has to be redefined for online communication and interaction and offer practical implications for designing the interaction process with online users.


2014 ◽  
Author(s):  
Sofia Larissa Da Costa ◽  
Valdemar Vicente Graciano Neto ◽  
Juliano Lopes De Oliveira ◽  
Bruno dos Reis Calçado

This paper presents a model-based approach to build Information Systems User Interfaces (ISUI). In this approach, UI presentation and behavioral aspects are modeled as UI Stereotypes, which are high level abstractions of UI appearance and interaction features. A taxonomy of ISUI elements is proposed as the basis for definition of UI stereotypes. These elements are orchestrated on a software architecture which manages model-based UI building and integration with the IS applications. The proposed approach reduces software development efforts and costs, facilitating maintenance and evolution of ISUI. Moreover, UI stereotypes improve usability, consistency, reuse and standardization of both presentation and behavior of ISUI.


Author(s):  
Andreas Opdahl ◽  
Brian Henderson-Sellers

The chapter reviews and augments a previously proposed template for defining enterprise and information systems (IS) modelling constructs. The purpose of the template is to provide clear and precise definitions of modelling constructs in a common format and, thereby, to facilitate intra- and inter-language integration. The template is based on the Bunge-Wand-Weber (BWW) model of information systems and has been used on several existing modelling languages and frameworks. It is defined by a meta-model expressed as a UML class diagram. The purpose of this chapter is to clarify the template further by formalising the meta-model through semi-formal constraints expressed in the object constraint language (OCL) and by populating the meta-model with definitions of example constructs from the UML version 1.4. The purpose is to make the template easier to understand, to validate it, to pave the way for stronger tool support for the template and to further our work on providing a complete template-based definition of the UML.


Author(s):  
Olga De Troyer

Today Web-related software development seems to be faced with a crisis not unlike the one that occurred a generation ago when in the 1970s. Computer hardware experienced an order of magnitude increase in computational power. This made possible the implementation of a new class of applications larger both in size and complexity, the methods for software development available at that time were not able to scale up to such large projects. The “software crisis” was a fact with its legendary stories of delays, unreliability, maintenance bottlenecks and costs. Now we seem to be starting to deal painfully with a corresponding “web site crisis”. Over the last few years, the Internet has boomed and the World Wide Web with it. Web browsers are the basic user platform of the Internet. Because of the immense potential audience, and because publishing on the web is in principle very easy, the number of web applications has exploded. Most of the web sites are created opportunistically without prior planning or analysis. Moreover, even large mission-critical intranet projects are being started without any regard for methodology. The resulting problems of maintenance and development backlog, so well-known in “classical” information systems, can easily be predicted and will happen on a much larger scale. Because web sites are almost by definition required to adapt and grow, and have to interact with other sites and systems unknown at the moment of creation, these problems will also be much more complex and severe. In addition to the predictable maintenance and development problems, a new problem unknown in classical information systems has emerged: competition for the user’s attention. Especially for commercial web sites it is important to hold the interest of the user and to keep them coming back to the site. If for some reason visitors are not satisfied with the site or cannot find (fast enough) the information they are looking for, there is a high chance that they will leave the site and not return. Much more than in “classical” software systems, the usability of web applications are primordial for their success.


2009 ◽  
pp. 1442-1455
Author(s):  
Horst Treiblmaier

In recent years a plethora of scholarly literature from the marketing and the information systems (IS) domain has dealt with the phenomenon of relationships. While during the precomputer era relationships always implied a social dimension, modern technology tries to mimic this interaction process by learning about customers’ needs and addressing them individually. Interestingly, the central definition of a relationship remains vague in both marketing and IS. Finding the major constituents, therefore, could shed light on the question of whether technology actually could replace “social interactions.” In this chapter, we show how relationships are defined in scholarly literature. Subsequently, consumers define what they perceive to be the crucial attributes of a relationship in general and with an online organization. The results indicate that the notion of relationship has to be redefined for online communication and interaction and offer practical implications for designing the interaction process with online users.


Author(s):  
Vasila Abasova

Component technology is currently considered the most advanced approach to software development. The use of ready software components, especially in the construction of large-volume and complex software (such as information systems), is highly effective. The article is of an overview nature and key concepts and principles of component technology, application of component technology in dispersed systems and the Internet, known component-oriented programming technologies are considered in the article.


Author(s):  
José Eduardo Fernandes ◽  
Ricardo J. Machado ◽  
João Álvaro Carvalho

This chapter focuses on design methodologies for pervasive information systems (PIS). It aims to contribute to the efficiency and effectiveness of software development of ubiquitous services/applications supported on pervasive information systems. Pervasive information systems are comprised of conveniently orchestrated embedded or mobile computing devices that offer innovative ways to support existing and new business models. Those systems are characterized as having a potentially large number of interactive heterogeneous embedded/mobile computing devices that collect, process, and communicate information. Also, they are the target of technological innovations. Therefore, changes in requirements or in technology require frequent modifications of software at device and system levels. Software design and evolution for those require suitable approaches that consider such demands and characteristics of pervasive information systems. Model-driven development approaches (which essentially centre the focus of development on models, and involve concepts such as Platform-Independent Models, Platform-Specific Models, model transformations, and use of established standards) currently in research at academic and industrial arenas in the design of large systems, offer potential benefits that can be applied to the design and evolution of these pervasive information systems. In this chapter, we raise issues and propose strategies related to the software development of PIS using a model-driven development perspective.


Author(s):  
Jose Eduardo Fernandes ◽  
Ricardo J. Machado ◽  
Joao Alvaro Carvalho

This chapter focuses on design methodologies for pervasive information systems (PIS). It aims to contribute to the efficiency and effectiveness of software development of ubiquitous services/applications supported on pervasive information systems. Pervasive information systems are comprised of conveniently orchestrated embedded or mobile computing devices that offer innovative ways to support existing and new business models. Those systems are characterized as having a potentially large number of interactive heterogeneous embedded/mobile computing devices that collect, process, and communicate information. Also, they are the target of technological innovations. Therefore, changes in requirements or in technology require frequent modifications of software at device and system levels. Software design and evolution for those require suitable approaches that consider such demands and characteristics of pervasive information systems. Model-driven development approaches (which essentially centre the focus of development on models, and involve concepts such as Platform-Independent Models, Platform-Specific Models, model transformations, and use of established standards) currently in research at academic and industrial arenas in the design of large systems, offer potential benefits that can be applied to the design and evolution of these pervasive information systems. In this chapter, we raise issues and propose strategies related to the software development of PIS using a model-driven development perspective.


Author(s):  
Fernando Molina ◽  
Francisco J. Lucas ◽  
Ambrosio Toval Alvarez ◽  
Juan M. Vara ◽  
Paloma Cáceres ◽  
...  

Recent years have seen the arrival of the Internet as the platform that supports most areas within organizations, a fact which has led to the appearance of specific methodologies and tools for the construction of Web information systems (WIS). However, an absence of functionalities for the verification and validation (V&V) has been detected in the methodologies and tools of the models which have been built. This chapter presents one of these methodologies for WIS development (MIDAS) and shows how it has been completed with the definition of a strategy for the formal specification of its models with V&V objectives. This will contribute to increasing the quality of the models used in WIS development. The plug-in architecture which integrates this formal approach within CASE tools for WIS development is also shown.


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