Agile manufacturing systems can beneet signiicantly from a database support. This paper describes AMDS, an agile manufacturing database system designed for capturing and manipulating the operational data of a manufacturing cell. AMDS is a continuous data gathering , real-time DBMS (Data Base Management System), and it can be logged either locally or remotely and used for oo-line analysis as wel...

A Computer database is a collection of logically related data that is stored in a computer system, so that a computer program or person using a query language can use it to answer queries. An operational database (OLTP) contains up-to-date, modifiable application specific data. A data warehouse (OLAP) is a subject-oriented, integrated, time-variant and non-volatile collection of data used to ma...

This paper describes a number of approaches to the development of more intelligent and more adaptable software. The paper introduces the notion of reeection and surveys two major styles: task and programming reeection. The paper then introduces a new form, viz operational reeection, based on the integration of these styles. This form of reeection is applied to cooperative environments and enabl...

E-Business have a variety of on-line transaction processing (OLTP) systems and operational database. Data Warehouse is different from operational database. A data warehouse is a subject-oriented, integrated, time-variant, and non-volatile collection of data in support of management's decision-making process. The features of Data Warehouse cause the its design process and strategies to be differ...

Construction organizations are critically dependent on data. But data must be available in suitable forms for use. Timely access to useful and meaningful information can enable construction companies gain competitive edge, increase client satisfaction, expand market share and enhance profitability. Vast amounts of construction operational data are scattered across multiple, dispersed and fragme...

Mathematics is forcing towards a consistent framework of theory development. Computer Science is an engineering discipline and sometimes suffers from ad-hoc definitions. Transactions are a concept that is commonly used in the database area. It is often defined in the form: given a syntactic construct in an abstract form and declare a number of properties an engine should support which is not sp...

We propose a language to define data update during schema versioning in a temporal object-oriented database. With this language, a user can express multi-schema modifications involving extensional data from different schema versions at the same time, improving the database environment with temporal and versioning features concerning database modification. We also provide the first steps towards...

The development of a server database system for monitoring and operational evaluation of remote Renewable Energy Sources (RES) plants is presented. Meteorological and operational parameters of multiple RES systems are measured and transmitted in real-time to a database (DB) server. An integrated data management system, comprised of programs running on the DB server, displays the received data o...

Due to severe performance penalties associated with synchronous replication, there is an increasing interest in asynchronous replica management protocols in which database transactions are executed locally, and the effects of these transactions are incorporated asynchronously on remote database copies. However, the asynchronous protocols currently in use either do not guarantee consistency and ...

in the same representation, and hence their results can be readily merged. To compile the result of query (5) into a set of cargo entities in the ight database, we need a rule: mapping the rst attribute domain to the other attribute domains. These functions are interpretations of the fact that attribute a 1 is the key of entity O. Applying this rule, every pair in the result of query (5) is bou...