CONTENTS Title Page Copyright Page Preface 1 Introduction 2 The Enterprise Management Challenge Enterprise Network Characteristics Costs of Enterprise Network Ownership Requirements of an Enterprise Management System Scope Functionality Integration Scale Summary 3 Digital's Management Strategy ISO/OSI Management Foundation Management Philosophy and Strategy Embedded Management Open Management Platform Architecture for Enterprise Management Summary 4 EMA Director/Entity Framework Basic Management Model Director/Entity Framework Overview Levels of Management Summary 5 EMA Entity Model Entity Structure Management Information Attributes Attribute Groups Directives Events Subordinate Entities Global Entities Summary 6 EMA Director Model Management Modules Presentation Modules (PMs) Functional Modules (FMs) Access Modules (AMs) Management Information Repository Entity Class Data Entity Instance Data Entity Attribute Data Private Data EMA Executive Module Distribution Management of Directors Summary 7 Management Domains Domain Definitions Single Domain Management Hierarchical Multidomain Management Distributed Multidomain Management Summary 8 Glossary FIGURES 2-1 Growth of Digital's EASYnet 2-2 Corporate Network Cost Structure 2-3 Enterprise Environment 3-1 Foundations of Enterprise Management 4-1 Basic Management Model 4-2 Director/Entity Framework 4-3 Levels of Management 5-1 Entity Internal Interface 5-2 Entity Agent-Director Interaction 5-3 Entity Information Structure 6-1 Director Components 6-2 Intermodule Communication 6-3 Distributed Modules 6-4 Single PM Accessing Multiple AMs 6-5 Single PM Supporting Multiple FMs 6-6 Multiple PM Accessing Centralized FMs 7-1 Sample Domains 7-2 Multiple Directors Access in Single Domain 7-3 Overlapping Domains 7-4 Domain Within a Domain 7-5 Domain "ENET" 7-6 Single Director, Single Domain 7-7 Multiple, Hierarchical Domains 7-8 Distributed, Multidomain Management