Telehealth is a flexible way of working which covers a wide range of health-related activities, all of which entail either working remotely from a traditional healthcare centre for a significant proportion of work tim...
详细信息
Telehealth is a flexible way of working which covers a wide range of health-related activities, all of which entail either working remotely from a traditional healthcare centre for a significant proportion of work time, on either a full-time or part-time basis. The work often involves electronic processing of information and always involves telecommunications to keep the remote healthcare centre and healthcare provider in contact with one another. This paper discusses the ramifications of technology-led change in the commercial healthcare environment, its impact on healthcare organizations, the social aspects of our lives and the shape of the telehealth industry we expect to see in the future.
Information technology (IT) has made a prolific impact, both in sociological and commercial terms. In the commercial world, the pursuit of new technology and working practices has often been at the expense of equal re...
详细信息
Information technology (IT) has made a prolific impact, both in sociological and commercial terms. In the commercial world, the pursuit of new technology and working practices has often been at the expense of equal regard for the correct methods to manage the new technology. Contemporary IT techniques and methods include electronic patient records (EPR) which are normally implemented on a local practice or hospital basis. However EPR implementation has major organisational and cultural implications which will form the main focus of the paper.
Newly emerging spatial applications such as the intelligent transportation system require high-performance access to databases. Although research prototypes and spatial extensions on top of commercial DBMSs have been ...
详细信息
Chiql is a novel Chinese relational database query language for Chinese users. It supports procedural query style in which users can specify a complex database request in multiple simple statements. This facility rend...
详细信息
Chiql is a novel Chinese relational database query language for Chinese users. It supports procedural query style in which users can specify a complex database request in multiple simple statements. This facility renders Chiql simple-to-use and easy-toremember. However, direct execution of multi-statement Chiql queries (i.e. statement by statement) is often inefficient as potential indexbased operations (e.g. join) are by-passed. Furthermore, it often incurs additional database operations, such as scan and projection. To improve this situation, the SMA (Statement Merging Algorithm) is proposed. The goal of SMA is to merge as many dependent statements within a Chiql query as possible to form a more efficient Chiql query. The ability in achieving improved efficiency without sacrificing the simplicity of the language is the major advantage of this algorithm.
Chiql, an unconventional Chinese database Query Language, is specially designed to be easily used by the naive and casual as well as expert users with Chinese background. In order to satisfy the requests of the Chines...
详细信息
Chiql, an unconventional Chinese database Query Language, is specially designed to be easily used by the naive and casual as well as expert users with Chinese background. In order to satisfy the requests of the Chinese user, we first depict the design principles of Chiql. Considering this, the language design and definition are described. Chiql supports restricted natural Chinese expressiveness, procedural query style and relational completeness. This facility renders Chiql simple to use and easy to remember. In order to verify the extent to which these objectives are satisfied by Chiql, we have conducted a series of evaluations to examine the language's expressiveness and ease of use. The result of this experiment is positive and clearly shows that the Chiql language fits the criteria of easy to use, easy to remember and easy to understand.
Chiql is a novel Chinese relational database query language for Chinese users. It supports procedural query style in which users can specify a complex database request in multiple simple statements. This facility rend...
详细信息
Chiql is a novel Chinese relational database query language for Chinese users. It supports procedural query style in which users can specify a complex database request in multiple simple statements. This facility renders Chiql simple-to-use and easy-to-remember. However, direct execution of multi-statement Chiql queries (i.e. statement by statement) is often inefficient as potential index-based operations (e.g. join) are by-passed. Furthermore, it often incurs additional database operations, such as scan and projection. To improve this situation, the SMA (Statement Merging Algorithm) is proposed. The goal of SMA is to merge as many dependent statements within a Chiql query as possible to form a more efficient Chiql query. The ability in achieving improved efficiency without sacrificing the simplicity of the language is the major advantage of this algorithm.
The authors demonstrate that the concept of logical data independence as it is used in conventional databases can be applied beneficially to hypermedia modeling to achieve a clear separation between hypermedia data an...
详细信息
The authors demonstrate that the concept of logical data independence as it is used in conventional databases can be applied beneficially to hypermedia modeling to achieve a clear separation between hypermedia data and applications. They show which aspects of logical data independence can be distinguished in hypermedia databases and describe an architecture which is constructed similar to the architecture of a conventional database. The paper is a continuation of previous work, in which they described how physical data independence can be achieved for hypermedia database management systems.
CHIQL is a new database query language to satisfy the requests of Chinese users and has the features of naturalness and simplicity, procedural and multi-statement query. As a main feature, procedurality enable users t...
详细信息
CHIQL is a new database query language to satisfy the requests of Chinese users and has the features of naturalness and simplicity, procedural and multi-statement query. As a main feature, procedurality enable users to use multi-statements to express a query with 11 templates, especially concerning complex one. In term of its implementation, multi-statement optimization is a special issue in CHIQL. This paper devises a statement merge method to improve the efficiency of CHIQL query and give some qualitative analysis about it.
Active database systems use situation-action rules to define which action has to be taken vt hen a particular situation occurs. Situation diagrams, which are introduced in this paper, provide a high-level graphical re...
详细信息
ISBN:
(纸本)354061656X
Active database systems use situation-action rules to define which action has to be taken vt hen a particular situation occurs. Situation diagrams, which are introduced in this paper, provide a high-level graphical representation of situations for the conceptual design of active object-oriented databases. A situation is specified declaratively as a graphical query with temporal and logical conditions over members of object classes, event classes, and interval classes.
暂无评论