A REVIEW OF PROBLEMS AND CHALLENGES OF USING MULTIPLE CONCEPTUAL MODELS

Conceptual models are used to visualise, envisage, and communicate the requirements, structure, and behaviour of a system. Particularly, during design and analysis phases, a model can serve as a tool to recognise different components, elements, actors, and relationships involved in a system. However, as a domain becomes complex, multiple models are needed to capture different aspects of a system. Further, each conceptual model develops using different grammars, methods, and tools. Therefore, using multiple models to represent a complex system may result in several problems, and challenges. This research aims to identify, analyse, and classify the different problems and issues encountered when using multiple models during information systems analysis and design through a structured literature review. Several problems are identified and are classified into seven main categories based on their common characteristics. The results of this study may serve as a baseline information for researchers in further understand-ing different modelling approaches and how multiple models can be used in harmony and reduce risks and issues. Also, the list of problems gathered will give insights to professionals on which issues they may possibly encounter when inter-relating various models

An Extension Proposition for the Agent-Based Language Modeling Ontology for the Representation of Supply Chain Integrated Business Processes

The recent introduction of supply chain systems has redefined the way organizations perceive collaboration. Although characterized as a human driven process by which people communicate, share knowledge, and cooperate internally; collaboration also extends outside the organization and across the supply chain by interacting with both suppliers and customers. While human driven collaboration is fundamental in operating certain business processes, they are usually depicted in models such as high-level abstracts or implicitly integrated in exception related mechanisms. This creates the need for an ontology capable of representing human-driven collaboration. The Agent Lab Language (TALL) ontology was selected as a possible solution to the research problem given its emphasis on agent/ business collaborations. A Bunge-Wand-Weber ontological representation analysis was further used to evaluate the ontological completeness of the Agent Language Lab (TALL). From this analysis, a set of propositions were elaborated in accordance with human-driven collaboration requirements. Following these propositions and the results of the analysis, additional constructs were proposed to the TALL ontology as a solution to the research problem

A framework for the analysis and evaluation of enterprise models

Bibliography: leaves 264-288.The purpose of this study is the development and validation of a comprehensive framework for the analysis and evaluation of enterprise models. The study starts with an extensive literature review of modelling concepts and an overview of the various reference disciplines concerned with enterprise modelling. This overview is more extensive than usual in order to accommodate readers from different backgrounds. The proposed framework is based on the distinction between the syntactic, semantic and pragmatic model aspects and populated with evaluation criteria drawn from an extensive literature survey. In order to operationalize and empirically validate the framework, an exhaustive survey of enterprise models was conducted. From this survey, an XML database of more than twenty relatively large, publicly available enterprise models was constructed. A strong emphasis was placed on the interdisciplinary nature of this database and models were drawn from ontology research, linguistics, analysis patterns as well as the traditional fields of data modelling, data warehousing and enterprise systems. The resultant database forms the test bed for the detailed framework-based analysis and its public availability should constitute a useful contribution to the modelling research community. The bulk of the research is dedicated to implementing and validating specific analysis techniques to quantify the various model evaluation criteria of the framework. The aim for each of the analysis techniques is that it can, where possible, be automated and generalised to other modelling domains. The syntactic measures and analysis techniques originate largely from the disciplines of systems engineering, graph theory and computer science. Various metrics to measure model hierarchy, architecture and complexity are tested and discussed. It is found that many are not particularly useful or valid for enterprise models. Hence some new measures are proposed to assist with model visualization and an original "model signature" consisting of three key metrics is proposed.Perhaps the most significant contribution ofthe research lies in the development and validation of a significant number of semantic analysis techniques, drawing heavily on current developments in lexicography, linguistics and ontology research. Some novel and interesting techniques are proposed to measure, inter alia, domain coverage, model genericity, quality of documentation, perspicuity and model similarity. Especially model similarity is explored in depth by means of various similarity and clustering algorithms as well as ways to visualize the similarity between models. Finally, a number of pragmatic analyses techniques are applied to the models. These include face validity, degree of use, authority of model author, availability, cost, flexibility, adaptability, model currency, maturity and degree of support. This analysis relies mostly on the searching for and ranking of certain specific information details, often involving a degree of subjective interpretation, although more specific quantitative procedures are suggested for some of the criteria. To aid future researchers, a separate chapter lists some promising analysis techniques that were investigated but found to be problematic from methodological perspective. More interestingly, this chapter also presents a very strong conceptual case on how the proposed framework and the analysis techniques associated vrith its various criteria can be applied to many other information systems research areas. The case is presented on the grounds of the underlying isomorphism between the various research areas and illustrated by suggesting the application of the framework to evaluate web sites, algorithms, software applications, programming languages, system development methodologies and user interfaces

Typology and built environment

This thesis examines and seeks to validate typology - the study and/or listing of types - in the comprehension and design of the built environment, particularly public urban space. It addresses typological thinking as a way of indexing knowledge in post -Enlightenment and post- Renaissance thought and presents a critical analysis of the application of type and typology in architecture, including rule -driven approaches to building design. The thesis demonstrates that urban space in western cities is primarily generated by systems of movement and access, and (through examination of the spatial structure of Edinburgh, Scotland and Winnipeg, Canada) that, once created, it has greater permanence than the buildings that front onto it. The thesis argues that typology, including the identification of archetypes and ideal types, remains a common approach to human comprehension of complex phenomena. The thesis notes, however, that typology has gone in- and -out of fashion in architecture - particularly as a basis for the design of buildings - but has been applied more consistently in urban design, both as a vehicle for comprehension and to inform design decisions. The study culminates with a series of quasi -experimental exercises, undertaken with design students, in categorizing space types in Edinburgh and Winnipeg on the basis of their suffix names (odonyms). This includes an examination of the denotations of the 27 space / name types common to both cities and identification of nine distinctive space / name types - gardens, square, park, bridge, promenade, avenue, path / pathway / walk, boulevard, street - that are proposed as constituents of a common vocabulary for urban designers

Information technology and military performance

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Political Science, 2011.Cataloged from PDF version of thesis.Includes bibliographical references (p. 519-544).Militaries have long been eager to adopt the latest technology (IT) in a quest to improve knowledge of and control over the battlefield. At the same time, uncertainty and confusion have remained prominent in actual experience of war. IT usage sometimes improves knowledge, but it sometimes contributes to tactical blunders and misplaced hubris. As militaries invest intensively in IT, they also tend to develop larger headquarters staffs, depend more heavily on planning and intelligence, and employ a larger percentage of personnel in knowledge work rather than physical combat. Both optimists and pessimists about the so-called "revolution in military affairs" have tended to overlook the ways in which IT is profoundly and ambiguously embedded in everyday organizational life. Technocrats embrace IT to "lift the fog of war," but IT often becomes a source of breakdowns, misperception, and politicization. To describe the conditions under which IT usage improves or degrades organizational performance, this dissertation develops the notion of information friction, an aggregate measure of the intensity of organizational struggle to coordinate IT with the operational environment. It articulates hypotheses about how the structure of the external battlefield, internal bureaucratic politics, and patterns of human-computer interaction can either exacerbate or relieve friction, which thus degrades or improves performance. Technological determinism alone cannot account for the increasing complexity and variable performances of information phenomena. Information friction theory is empirically grounded in a participant-observation study of U.S. special operations in Iraq from 2007 to 2008. To test the external validity of insights gained through fieldwork in Iraq, an historical study of the 1940 Battle of Britain examines IT usage in a totally different structural, organizational, and technological context.(cont.) These paired cases show that high information friction, and thus degraded performance, can arise with sophisticated IT, while lower friction and impressive performance can occur with far less sophisticated networks. The social context, not just the quality of technology, makes all the difference. Many shorter examples from recent military history are included to illustrate concepts. This project should be of broad interest to students of organizational knowledge, IT, and military effectiveness.by Jon Randall Lindsay.Ph.D

Transforming relations: Anishnawbe Natural Law in the “Ring of Fire”

This multiple manuscript dissertation project contributes to a larger case study research project examining Matawa First Nation experiences of negotiating a proposed mining project known as the “Ring of Fire.” Nine independent First Nations located in the Treaty 9 territory in Northern Ontario, comprise a collective regional organization called Matawa First Nations. These First Nations have a long history of living their Ancestral ways of trapping, fishing, and gathering from the lands. During the early 20th century, the southern Matawa communities began to have contacts with forestry development, but a chromite deposit with an estimated value of 65 billion dollars on Matawa’s traditional territory in 2008 gave rise to interest in mineral extraction across the entire region. In 2012, active communications began with Matawa First Nations to secure access to these lands for development. As a critical Indigenous doctoral student involved in this case study, my interest was to capture first-hand experiences of Matawa Peoples as they contemplate development on their traditional territory. This multiple manuscript dissertation shares three specific areas of interest: the challenge of conducting Indigenous research on lands and culture different than my own, Matawa’s knowledge of Anishnawbe Natural Laws and inherent rights and the communities’ priorities in the face of this proposed development, and lastly the knowledge gained by visiting with Matawa Knowledge Holders to learn the perspectives of leaders and Elders on the proposed development and what they see as future directions for the generations to come