The main purpose of this study was to identify and analyze factors affecting development of entrepreneurship in complementary and processing industries of citrus products at Khouzestan province, Iran. The Statistical population of this study consisted of all managers in processing and complementary industries of citrus products in Khouzestan province (N=89). By census method all managers were s...

A novel indexing structure, join index hierarchy, is proposed to handle the \goto's on disk" problem in object-oriented query processing. The method constructs a hierarchy of join indices and transforms a sequence of pointer chasing operations into a simple search in an appropriate join index le, and thus accelerates navigation in object-oriented databases. The method extends the join index str...

A novel indexing structure, join index hierarchy, is proposed to handle the \goto's on disk" problem in object-oriented query processing. The method constructs a hierarchy of join indices and transforms a sequence of pointer chasing operations into a simple search in an appropriate join index le, and thus accelerates navigation in object-oriented databases. The method extends the join index str...

The introduction of a Service-Oriented Architecture (SOA) can affect performance in a negative way. This exacerbates the application of SOA to systems for bulk data processing. This paper describes specific aspects of Service-Oriented Architectures that impact performance particularly. It discusses several approaches to these issues that are currently established and motivates the need for a fr...

We examine the main practical issues concerning load balancing in distributed systems. Two complementary orientations are examined: an application oriented approach for High Performance Transaction Processing, and a low level process oriented approach.

A new semantic query processing technique in an object-oriented database system is presented. Issues related to the query processing in object-oriented database systems arc discussed. The query processing technique takes advantage of semantic data integrity constraints to generate more efficient access plans. Semantic information related to the target objects of a given query is utilized in a s...

This work presents a rule-based approach for declarative query optimizer generation considering parallel execution in object-oriented databases. The main goal of this work is to provide a framework that can capture relevant aspects of parallel query optimization in a declarative way, combining procedural techniques with the advantages of rule processing. One of those techniques was used for det...

Despite the rapid advances i n development of parallel processing sys tems in recent years, the progress i n software development t o effectively utilize the parallel processing sys tems has been relatively slow. I n this paper, a n object-oriented approach t o software development for parallel processing sys tems i s presented. T h i s approach i s based o n a computat ion model which incorpor...

Object-oriented database systems began developing in the mid-80’s out of a necessity to meet the requirements of applications beyond the data processing applications which were [are] served by relational database systems. This paper serves as an overview on the achievements of object-oriented database technology so far, and also discusses the weaknesses that have to be yet resolved by the objec...

Dynamic query processing in a parallel object-oriented database system / Carel Arie van den Berg.-Amsterdam : Stichting Mathematisch Centrum.-Ill. Thesis Enschede.-With index, ref.-With summary in Dutch. ISBN: 90-6196-434-2 NUGI 852 Subject headings: parallel database systems. Cover: (Man carrying a load up the mountain to nd new horizons) PROEFSCHRIFT ter verkrijging van de graad van doctor aa...