International Business Machines Corporation

Friedrich Beichter

Charles E Shapley

Ravi Ranjan

James R Urquhart

John J Hughes

Brian K Zerba

Thomas Pohl

Juergen Baumann

Jochen Hoffman

Martina Weidler

The present invention relates to a system and a method performed in a client-server computing environment for managing the access requested by user applications () to a central, non-standard database type data repository () having proprietary access and data structures, in which data repository () the data integrity is controlled and checked by a further 'mature' application running independently of the user applications (). In order to provide an improved, cost-effective multiple-user access method, the following steps are proposed:

Providing multi-user access in a single-user based client-server environment with distributed repositories

A data management method includes accessing data objects in an application written in C/C++ for change-logging and multi-step redo/undo, wherein the data objects are organized in a binary format and are devoid of self-describing information, and wherein the accessing the data objects is structured in a plurality of layers, the plurality of layers including a semantic layer, a change log layer, and a repository layer, dynamically analyzing the data objects to recognize all changes made by any of a plurality of users for all data types used by the application, the dynamically analyzing the data including using semantic analysis to track changes and identifying any changes in any of the data objects, and using generated wrapper classes to convert between C/C++ data structures and generic data format, wherein the wrapper classes are generated from developer provided annotations with C/C++ data structure declarations.

Method and system for automatically adding generic change log to legacy application

Configuring of a communications environment is facilitated. A mapping tool is provided that aids in the configuring of various components of a communications environment, such as an input/output (I/O) subsystem of the environment. Data generated from an order process and a logical configuration definition are used as input to the mapping tool. The tool performs mapping and generates as output a physical configuration definition, and optionally, one or more reports. The mapping tool has a manual function, as well as an automatic function.

Mapping tool for configuring communications environments

Facilitating the configuring of communications environments

The present invention relates to a method for reducing a data repository with a plurality of sequentially ordered records. Each record is characterized by an identifier and comprises one or more data attributes and/or one or more links. The method includes the step of choosing a first record as base record and verifying whether the identifier of the sequentially next record can be generated from the base record by applying an identifier generating function. As a next step it is verified whether the data attributes and/or the links of the sequentially next record are identical with the data attributes and/or the links of the base record or can be generated from the base record by applying an attribute generating function and/or link generating function. If the above conditions are satisfied, a counter in the base record is incremented and the sequentially next record is deleted. The above steps are repeated for the subsequent records until the above conditions and are not satisfied for any record.

Method for reducing a data repository

Growing community of inventors

Altbach, Germany

Friedrich Beichter