1,720,991 research outputs found
IT failure and the collapse of One.Tel
No full textPreface. Programme Committee. A Language Based Combined Requirements Engineering Approach; J. Barjis. Support Structure of Knowledge Management in Software Process Improvement; Wan Jiangping, et al. IT Failure and the Collapse of One.Tel; D. Avison, D. Wilson. Active Models for Digitally Enabled Creative Business Networks; J. Krogstie, et al. Modeling of e-Business Brokerage Systems Using UML and Petri Net; B. Shishkov, J. Barjis. Trust and Virtual Organizations; E. Rossen. Identifying Communities of Practice; K. O'Hara, et al. The Role Of Culture In the Development of Global E-Commerce Systems; J. Slay, G. Quirchmayr. Online One-Stop Government; M.A. Wimmer, E.Tambouris. Designing Collaborative Business Systems; I. Hawryszkiewycz. Video-based Customer Consulting via Internet Using Videoconferencing Standard H.323; U. Zschuckelt, et al. A System For Secure Mobile Payment Transactions; T. Halonen, T. Virtanen. A User Centred Website Development Approach; M. J. Taylor, et al. Designing a Web Application Using an Ethnographic Research Approach; N.C. Surendra. A Framework for Facilitating Higher-order Strategic Thinking in Online Management Development; P. Nicholson, G.White. An Evaluation of the Web Presence of a Nonprofit Organization; A. Abuhamdieh, et al. Auctions with Buyer Preferences; C. Bandela, et al. From Vision to Reality; J. Gunnarsson, G. Sigurdardóttir. Design: How Can We Cope with Change? R. Traunmüller. Index
Bringing social and organisational issues into information systems: the story of multiview
No full text
The evaluation of information systems in the organisational context of the National Health Service. Available in 2 volumes.
Full text linkThis thesis describes a project which has investigated the evaluation of information systems. The work took place in, and is related to, a specific organisational context, that of the National Health Service (NHS). It aims to increase understanding of the evaluation which takes place in the service and the way in which this is affected by the NHS environment. It also investigates the issues which surround some important types of evaluation and their use in this context. The first stage of the project was a postal survey in which respondents were asked to describe the evaluation which took place in their authorities and to give their opinions about it. This was used to give an overview of the practice of IS evaluation in the NHS and to identify its uses and the problems experienced. Three important types of evaluation were then examined in more detail by means of action research studies. One of these dealt with the selection and purchase of a large hospital information system. The study took the form of an evaluation of the procurement process, and examined the methods used and the influence of organisational factors. The other studies are concerned with post-implementation evaluation, and examine the choice of an evaluation approach as well as its application. One was an evaluation of a community health system which had been operational for some time but was of doubtful value, and suffered from a number of problems. The situation was explored by means of a study of the costs and benefits of the system. The remaining study was the initial review of a system which was used in the administration of a Breast Screening Service. The service itself was also newly operational and the relationship between the service and the system was of interest
Rules for mapping a conceptual model onto various data base management systems. Available in 2 volumes.
Full text linkThe design and implementation of data bases involve, firstly, the formulation of a conceptual data model by systematic analysis of the structure and information requirements of the organisation for which the system is being designed; secondly, the logical mapping of this conceptual model onto the data structure of the target data base management system (DBMS); and thirdly, the physical mapping of this structured model into storage structures of the target DBMS. The accuracy of both the logical and physical mapping determine the performance of the resulting systems. This thesis describes research which develops software tools to facilitate the implementation of data bases. A conceptual model describing the information structure of a hospital is derived using the Entity-Relationship (E-R) approach and this model forms the basis for mapping onto the logical model. Rules are derived for automatically mapping the conceptual model onto relational and CODASYL types of data structures. Further algorithms are developed for partly automating the implementation of these models onto INGRES, MIMER and VAX-11 DBMS
The implementation of a functional query language front-end to a relational database system. Available in 2 volumes.
Full text linkDatabase systems have a user interface one of the components of which will normally be a query language which is based on a particular data model. Typically data models provide primitives to define, manipulate and query databases. Often these primitives are designed to form self-contained query languages. This thesis describes a prototype implementation of a system which allows users to specify queries against the database in a query language whose primitives are not those provided by the actual model on which the database system is based, but those provided by a different data model. The implementation chosen is the Functional Query Language Front End (FQLFE). This uses the Daplex functional data model and query language. Using FQLFE, users can specify the underlying database (based on the relational model) in terms of Daplex. Queries against this specified view can then be made in Daplex. FQLFE transforms these queries into the query language (Quel) of the underlying target database system (Ingres). The automation of part of the Daplex function definition phase is also described and its implementation discussed
- …
