Master's Thesis

Aspects of Interrelations in Distributed Component Systems

Stefan Thalauer <sthalau@iicm.edu>

Overview

• Motivation
• Requirements
• Interrelation Concept
• Endpoint
• Interrelation Handler
• Summary

Motivation

• Navigation through information space
• Model relationships between arbitrary chunks of data
• Dangling Link Syndrome
• Interrelations are often part of documents
• Interrelations should be part of the distributed system

Requirements

• Types and Semantics
• Meta-data
• Stability and Consistency
• Logical Structure strictly separated from Addressing Structure

Requirements

• Multidirectional
• Multidimensional
• Interrelations between Interrelations
• Adding Interrelations to Systems which do not support them
• System Immanent and Explicit Interrelations

Interrelation Concept

• Interrelation Objects are Dinopolis Objects
  • Addressable (by GUHs)
  • Typeable
  • Meta-data
  • Provide functionality (dynamic type mechanism)
• Endpoints
• Endpoint Classification Sets

Interrelation Object

Endpoint

• Represents a connection between Interrelation Object and Dinopolis Object
• Distinguish between:
  • Interrelation side Endpoint
  • Dinopolis side Endpoint

Endpoint

• GUH (of corresponding object)
• Endpoint ID

Interrelation Handler

• Provides Interrelation specific functionality needed from Dinopolis Objects
  • Request an Endpoint
  • Request all attached Endpoints
  • Request number of Endpoints

Summary

• Robust against object movement
• Stable against object deletion
• Interrelations should be objects themselves

Finish

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