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• ITU-T Rec. X.500 (11/1988) – THE DIRECTORY – OVERVIEW OF CONCEPTS, MODELS AND SERVICES
• CONTENTS
• 0 Introduction
• 1 Scope and field of application
• 2 References
• 3 Definitions
  • 3.1 OSI reference model definitions
  • 3.2 Basic directory definitions
  • 3.3 Directory model definitions
  • 3.4 Distributed operation definitions
• 4 Abbreviations
• 5 Overview of the Directory
• 6 The Directory Information Base (DIB)
• 7 The Directory service
  • 7.1 Introduction
  • 7.2 Service qualification
  • 7.3 Directory interrogation
  • 7.4 Directory modification
  • 7.5 Other outcomes
• 8 The distributed Directory
  • 8.1 Functional model
  • 8.2 Organizational model
  • 8.3 Operation of the model
• 9 Directory protocols
• ANNEX A – Applying the Directory
• A.1 The Directory environment
• A.2 Directory service characteristics
• A.3 Patterns of use of the directory
• A.4 Generic applications