A systematic approach to the design of complex systems : application to DBMS design and evaluation

Bibliography: leaves 80-85.R.C. Andreu, S.E. Madnick

Decision rules for the automated generation of storage strategies in data management systems

Thesis. 1975. M.S.--Massachusetts Institute of Technology. Alfred P. Sloan School of Management.Bibliography: leaves 152-155.by Grant N Smith.M.S

A Domain-Specific Conceptual Query System

This thesis presents the architecture and implementation of a query system resulted from a domain-specific conceptual data modeling and querying methodology. The query system is built for a high level conceptual query language that supports dynamically user-defined domain-specific functions and application-specific functions. It is DBMS-independent and can be translated to SQL and OQL through a normal form. Currently, it has been implemented in neuroscience domain and can be applied to any other domain

Data dependent program generation

PhD ThesisWhen information is stored in a computer it can usually be organised in many different ways. If the information is used for a number of different purposes the ideal organisation is not always obvious. It will depend on how often various parts of the data are used, how often they are changed, and the amount of data taking part in each transaction. It may be difficult to predict these parameters in advance, especially in data-base applications where the pattern of use may change as time goes by. Ultimately, one can visualise systems which can automatically choose the optimum can substantially assist in the representation, or choice. A step in which this direction, which could itself find immediate application, is to find a practical way to tailor programs to a particular data organisation. The thesis describes an experimental system which does this for a limited range of programs, and the work which lead up to it. Both data retrieval and simple updates are considered. One prerequisite is a method of writing the program so that it does not depend on the way that the data is stored. A number of data-base systems achieve this independence by describing the data as a collection of relations. These systems and the background to them are reviewed. The experimental system is loosely based on the use of relations, but some modifications have been made to make the processing simpler and so that the characteristics of the data organisation can be described. The system incorporates the representation into the program and produces a tailored version which is expressed in abstract, Algol-like code. The result is intended to be similar to code which a human programmer might write in similar circumstances, but as far as possible ignoring the details of any particular implementation.IBM, Advanced Education Scheme

Semi-algebraic complexity-additive complexity of diagonalization of quadratic forms

Sin resume

Design and implementation of a relational data base system for a minicomputer

Journal ArticleA data base system provides the advantages of centralized control of data including increased data independence. Design specifications for a low level relational data base interface are given in the form of a formal description which separates the implementation details from the description of the functions making up the interface. The formal description may be used by both the user and implementer of the system. The minicomputer implementation of the data base system described is intended to be used directly by application programmers or as a base on which to build a higher level interface. The functions making up the system are FORTRAN callable subroutines making it convenient for minicomputer application programs to use the system. A method of utilizing the low level interface to implement a higher level interface based on the relational algebra is outlined

A Smart XML Access Right Controller for Mobile Applications

International audienceChip-Secured XML Access (C-SXA) is a versatile XML-based Access Right Controller embedded in a smart card. C-SXA can be used either to protect the privacy of on-board personal data or to control the flow of data extracted from an external source. C-SXA addresses a broad range of applications, like secure portable folders, Digital Right Management, parental control or exchange of confidential information among a community of users. We illustrate the effectiveness of this technology through a collaborative agenda application embedded in a cellular phone SIM card