Welcome to the IT4IT™ Reference Architecture, Version 2.1, an Open Group Standard

Contents

1 Introduction. 1

1.1 Objective. 1

1.2 Overview.. 1

1.3 Conformance. 1

1.4 Normative References. 1

1.5 Terminology. 1

1.6 Future Directions. 2

2 Definitions. 3

2.1 Service Lifecycle Data Object 3

2.2 IT Value Chain. 3

2.3 Value Chain. 3

2.4 Value Stream.. 4

2.5 Functional Component 4

2.6 Service Model Backbone Data Object 4

2.7 Relationship. 4

2.8 System of Record. 4

2.9 IT Service. 5

3 Overview.. 6

3.1 What is the IT Value Chain?. 6

3.2 IT Value Chain and IT4IT Reference Architecture. 8

3.3 IT Value Streams. 10

3.3.1 Strategy to Portfolio. 10

3.3.2 Requirement to Deploy. 12

3.3.3 Request to Fulfill 13

3.3.4 Detect to Correct 14

3.4 IT4IT Reference Architecture. 15

3.4.1 Service Model 16

3.4.2 Information Model 17

3.4.3 Functional Model 19

3.4.4 Integration Model 21

3.5 IT Service. 23

4 IT4IT Core. 25

4.1 Introduction. 25

4.2 IT4IT Abstraction Levels and Class Structure. 25

4.2.1 IT4IT Abstractions. 25

4.2.2 Concepts at Level 1: End-to-End Overview.. 26

4.2.3 Level 1 Reference Architecture Model 31

4.2.4 Concepts at Level 2: Value Stream Documentation. 32

4.2.5 Level 2 Reference Architecture Diagram (Example) 38

4.2.6 Concepts at Level 3: Vendor-Independent Architecture. 39

4.2.7 Level 3 Reference Architecture Diagram (Example) 44

4.2.8 Concepts at Levels 4 and 5 - Vendor Extensions. 45

5 Strategy to Portfolio (S2P) Value Stream 47

5.1 Objectives. 47

5.2 Business Value Proposition. 48

5.3 Key Performance Indicators. 48

5.4 Value Stream Definition. 49

5.4.1 Enterprise Architecture Functional Component 50

5.4.2 Policy Functional Component 51

5.4.3 Proposal Functional Component 53

5.4.4 Portfolio Demand Functional Component 56

5.4.5 Service Portfolio Functional Component 58

5.4.6 IT Investment Portfolio - Auxiliary Functional Component 61

6 Requirement to Deploy (R2D) Value Stream 63

6.1 Objectives. 63

6.2 Business Value Proposition. 64

6.3 Key Performance Indicators. 65

6.4 Value Stream Definition. 66

6.4.1 Project Functional Component 67

6.4.2 Requirement Functional Component 70

6.4.3 Service Design Functional Component 73

6.4.4 Source Control Functional Component 77

6.4.5 Build Functional Component 79

6.4.6 Build Package Functional Component 81

6.4.7 Release Composition Functional Component 82

6.4.8 Test Functional Component 86

6.4.9 Defect Functional Component 89

7 Request to Fulfill (R2F) Value Stream 92

7.1 Objectives. 92

7.2 Business Value Proposition. 93

7.3 Key Performance Indicators. 94

7.4 Value Stream Definition. 95

7.4.1 Engagement Experience Portal (Secondary Functional Component) 96

7.4.2 Offer Consumption Functional Component 99

7.4.3 Offer Management Functional Component 100

7.4.4 Catalog Composition Functional Component 103

7.4.5 Request Rationalization Functional Component 105

7.4.6 Fulfillment Execution Functional Component 108

7.4.7 Usage Functional Component 111

7.4.8 Chargeback/Showback Functional Component 113

7.4.9 Knowledge & Collaboration Supporting Function. 115

8 Detect to Correct (D2C) Value Stream 119

8.1 Objectives. 119

8.2 Business Value Proposition. 120

8.3 Key Performance Indicators. 121

8.4 Value Stream Definition. 122

8.4.1 Service Monitoring Functional Component 124

8.4.2 Event Functional Component 126

8.4.3 Incident Functional Component 128

8.4.4 Problem Functional Component 131

8.4.5 Change Control Functional Component 133

8.4.6 Configuration Management Functional Component 137

8.4.7 Diagnostics & Remediation Functional Component 139

8.4.8 Service Level Functional Component 141

8.4.9 Other IT Operations Areas. 144

A Rationale (Informative) 145

A.1 Introduction. 145

A.2 Definitions. 145

A.3 Overview.. 145

A.3.1 Business Drivers for an Improved IT Operating Model 146

A.3.2 The IT Value Chain. 147

A.4 IT4IT Core. 148

A.4.1 Value Streams. 149

A.4.2 Functional Components. 149

A.5 Strategy to Portfolio Value Stream.. 149

A.5.1 Related Standards, Frameworks, and Guidance. 149

A.6 Requirement to Deploy Value Stream.. 150

A.6.1 Related Standards, Frameworks, and Guidance. 150

A.7 Request to Fulfill Value Stream.. 151

A.7.1 Related Standards, Frameworks, and Guidance. 151

A.8 Detect to Correct Value Stream.. 152

A.8.1 Related Standards, Frameworks, and Guidance. 152



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Downloads

Downloads of the IT4IT™ Reference Architecture, Version 2.1 documentation, are available under license from the IT4IT information web site. The license is free to any organization wishing to use IT4IT entirely for internal purposes (for example, to develop an information system architecture for use within that organization). A book is also available (in pdf) from The Open Group Bookstore as document C171.


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