Health Information Systems - Architectures and Strategies

von: Alfred Winter, Reinhold Haux, Elske Ammenwerth, Birgit Brigl, Nils Hellrung, Franziska Jahn

Springer-Verlag, 2011

ISBN: 9781849964418 , 340 Seiten

2. Auflage

Format: PDF

Kopierschutz: DRM

Windows PC,Mac OSX für alle DRM-fähigen eReader Apple iPad, Android Tablet PC's

Preis: 90,94 EUR

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Mehr zum Inhalt

Health Information Systems - Architectures and Strategies


 

Health Information Systems: Architectures and Strategies

2

Foreword from the 1st Edition in 2004

6

Series Preface

8

Preface for the 2nd Edition

9

Acknowledgements for the 2nd Edition

11

Acknowledgements for the 1st Edition

12

Annotation to the Figures

13

Contents

14

List of Figures

21

Figure Credits

31

List of Tables

33

About the Authors

35

1: Introduction

38

2: Health Institutions and Information Processing

40

2.1Introduction

40

2.2 Significance of Information Processing in Health care

40

2.2.1 Information Processing as Quality Factor

40

2.2.2Information Processing as Cost Factor

41

2.2.3Information as Productivity Factor

43

2.2.4Holistic View of the Patient

43

2.2.5Hospital Information System as Memory and Nervous System

44

2.3 Progress in Information and Communication Technology

45

2.3.1Impact on the Quality of Health Care

45

2.3.2Impact on Economics

47

2.3.3Changing Health care

48

2.4 Importance of Systematic Information Management

49

2.4.1Affected People and Areas

49

2.4.2Amount of Information Processing

50

2.4.3Sharing the Same Data

51

2.4.4Integrated Information Processing to Satisfy Information Needs

52

2.4.5Raising the Quality of Patient Care and Reducing Costs

53

2.4.6Basis of Systematic Information Processing

53

2.5 Examples

54

2.5.1Knowledge Access to Improve Patient Care

54

2.5.2Nonsystematic Information Processing in Clinical Registers

55

2.5.3The WHO eHealth Resolution15

56

“The Fifty-Eighth World Health Assembly …

57

2.5.4Estimated Impact of eHealth to Improve Quality and Efficiency of Patient Care

58

2.6 Exercises

59

2.6.1Amount of Information Processing in Typical Hospitals

59

2.6.2Information Processing in Different Areas

59

2.6.3Good Information Processing Practice

60

2.7 Summary

60

3: Information System Basics

61

3.1 Introduction

61

3.2 Data, Information, and Knowledge

61

3.3 Information Systems and Their Components

62

3.3.1Systems and Subsystems

62

3.3.2Information Systems

62

3.3.3Components of Information Systems

63

3.3.4Architecture and Infrastructure of Information Systems

65

3.4 Information Management

66

3.5 Exercises

66

3.5.1On the Term Information System

66

3.5.2On Enterprise Functions

67

3.5.3On Application Components

67

3.5.4On Architectures and Infrastructures

67

3.5.5On Information Management

67

3.6 Summary

67

4: Health Information Systems

69

4.1 Introduction

69

4.2 Hospital Information Systems

69

4.3 Transinstitutional Health Information Systems

72

4.4 Electronic Health Records as a Part of Health Information Systems

74

4.5 Challenges for Health Information Systems

74

4.6 Example

76

4.6.1 Architecture of a Hospital Information System

76

4.7 Exercises

77

4.7.1 Hospital Information System as a System

77

4.7.2 Buying a Hospital Information System

77

4.7.3 Transinstitutional Health Information Systems

77

4.8 Summary

78

5: Modeling Health Information Systems

79

5.1 Introduction

79

5.2 On Models and Metamodels

79

5.2.1Definitions

79

5.2.2Types of Models

81

5.2.2.1Functional Models

81

5.2.2.2Technical Models

82

5.2.2.3Organizational Models

82

5.2.2.4Data Models

84

5.2.2.5Business Process Models

85

5.2.2.6Information System Models

87

5.3 A Metamodel for Modeling Health Information Systems on Three Layers: 3LGM²

87

5.3.1UML Class Diagrams for the Description of 3LGM²

88

5.3.23LGM²-B

91

5.3.2.1Domain Layer

91

5.3.2.2Logical Tool Layer

94

5.3.2.3Physical Tool Layer

96

5.3.2.4Interlayer Relationships

98

5.3.33LGM²-M

102

5.3.43LGM²-S

103

5.4 On Reference Models

104

5.5 A Reference Model for the Domain Layer of Hospital Information Systems

106

5.6 Exercises

107

5.6.1Typical Implementation of Hospital Functions

107

5.6.23LGM² as a Metamodel

107

5.6.3Modeling with 3LGM²

108

5.6.3.1HIS Components

108

5.6.3.2Create the Model

108

5.6.3.3Interlayer Relationships

108

5.6.3.4New Enterprise Function

108

5.7 Summary

109

6: Architecture of Hospital Information Systems

110

6.1 Introduction

110

6.2 Domain Layer: Data to Be Processed in Hospitals

110

6.2.1 Entity Types Related to Patient Care

111

6.2.2 Entity Types About Resources

112

6.2.3 Entity Types Related to Administration

113

6.2.4 Entity Types Related to Management

113

6.3 Domain Layer: Hospital Functions

114

6.3.1 Patient Care

114

6.3.1.1 Patient Admission

114

Appointment Scheduling

116

Patient Identification and Checking for Recurrent

116

Administrative Admission

116

Medical Admission

118

Nursing Admission

118

Visitor and Information Service

118

6.3.1.2 Decision Making, Planning, and Organization of Patient Treatment

118

Decision Making and Patient Information

120

Medical and Nursing Care Planning

120

6.3.1.3 Order Entry

121

Preparation of an Order

121

Appointment Scheduling

123

6.3.1.4 Execution of Diagnostic, Therapeutic and Nursing Procedures

123

Execution of Diagnostic and Therapeutic Procedures

124

Execution of Nursing Procedures

125

6.3.1.5 Coding of Diagnoses and Procedures

125

6.3.1.6 Patient Discharge and Transfer to Other Institutions

126

Administrative Discharge and Billing

127

Medical Discharge and Medical Report Writing

127

Nursing Discharge and Nursing Report Writing

128

6.3.2 Supply and Disposal Management, Scheduling, and Resource Allocation

128

6.3.2.1 Supply and Disposal Management

128

Catering

128

Material and Medication Management

128

Laundry Management

128

Management of Medical Devices

130

6.3.2.2 Scheduling and Resource Allocation

130

6.3.2.3 Human Resources Management

130

6.3.3 Hospital Administration

131

6.3.3.1 Patient Administration

132

6.3.3.2 Archiving of Patient Information

132

Opening of a Patient Record

133

Administration and Allocation of Patient Records

133

Long-Term Archiving

134

6.3.3.3 Quality Management

134

Internal Quality Management

134

Performance of Legal Notification Requirements

135

6.3.3.4 Cost Accounting

135

6.3.3.5 Controlling

135

6.3.3.6 Financial Accounting

136

6.3.3.7 Facility Management

136

6.3.3.8 Information Management3

136

Strategic Information Management

136

Tactical Information Management

139

Operational Information Management

139

6.3.4 Hospital Management

139

6.3.5 Research and Education

139

6.3.5.1 Research Management

141

6.3.5.2 Execution of Clinical Trials and Experiments

141

6.3.5.3 Knowledge Retrieval and Literature Management

141

6.3.5.4 Publishing and Presentation

141

6.3.5.5 Education

141

6.3.6 Clinical Documentation: A Hospital Function?

141

6.3.7 Domain Layer: Exercises

142

6.3.7.1 Differences in Hospital Functions

142

6.3.7.2 Different Health Care Professional Groups and Hospital Functions

142

6.3.7.3 Support of Hospital Functions

142

6.3.7.4 The Patient Entity Type

143

6.3.8 Domain Layer: Summary

143

6.4 Logical Tool Layer: Application Components

145

6.4.1 Patient Administration System

146

6.4.2 Medical Documentation System

148

6.4.3 Nursing Management and Documentation System

150

6.4.4 Outpatient Management System

151

6.4.5 Provider or Physician Order Entry System (POE)

153

6.4.6 Patient Data Management System (PDMS)

155

6.4.7 Operation Management System

157

6.4.8 Radiology Information System

159

6.4.9 Picture Archiving and Communication System (PACS)

160

6.4.10 Laboratory Information System

162

6.4.11 Enterprise Resource Planning System

163

6.4.12 Data Warehouse System

164

6.4.13 Document Archiving System

166

6.4.14 Other Computer-Based Application Components

168

6.4.15 Clinical Information System and Electronic Patient Record System as Comprehensive Application Components

169

6.4.16 Typical Non-Computer-Based Application Components

170

6.4.16.1 The Paper-Based Patient Chart System

170

6.4.16.2 The Paper-Based Patient Record System

172

6.5 Logical Tool Layer: Integration of Application Components

172

6.5.1 Taxonomy of Architectures at the Logical Tool Layer

173

6.5.1.1 Number of Databases: Central Versus Distributed

173

DB1 Style

174

DBn Style

174

Mixed DB1/DBn Style

175

6.5.1.2 Number of Application Components: Monolithic Versus Modular

175

6.5.1.3 Number of Software Products and Vendors: All-in-One Versus Best-of-Breed

176

6.5.1.4 Communication Pattern: Spaghetti Versus Star

177

6.5.2 Integrity

179

6.5.2.1 Object Identity

179

6.5.2.2 Referential Integrity

180

6.5.2.3 Consistency

180

6.5.3 Types of Integration

181

6.5.3.1 Data Integration

181

6.5.3.2 Semantic Integration

181

6.5.3.3 Access Integration

182

6.5.3.4 Presentation integration

182

6.5.3.5 Contextual Integration

183

6.5.3.6 Functional integration

183

6.5.3.7 Process Integration

183

6.5.4 Standards

184

6.5.4.1 Health Level 7 (HL7) Version 2

184

6.5.4.2 Health Level 7 (HL7) Version 3

186

6.5.4.3 Digital Imaging and Communications in Medicine (DICOM)

187

6.5.4.4 ISO/IEEE 11073

188

6.5.4.5 Standard for Contextual Integration

188

6.5.4.6 Integrating the Healthcare Enterprise (IHE)

188

6.5.4.7 Electronic Data Interchange for Administration, Commerce, and Transport (EDIFACT)

189

6.5.4.8 Clinical Document Architecture (CDA)

189

6.5.5 Integration Technologies

190

6.5.5.1 Federated Database System

190

6.5.5.2 Transaction Management: 2-phase commit protocol and master application components

190

6.5.5.3 Middleware

191

Message Exchange by Communication Servers

192

Remote Function Calls

194

Service-Oriented Architectures (SOAs) and Portals

195

6.5.6 Logical Tool Layer: Example

196

6.5.6.1 Typical Realizations: Centralized, Monolithic and All-in-One HIS

196

6.5.7 Logical Tool Layer: Exercises

198

6.5.7.1 Data Distribution Style at the Logical Tool Layer

198

6.5.7.2 HIS Infrastructures

198

6.5.7.3 A Paperless Hospital

201

6.5.7.4 Introducing a Departmental Computer-Based Application Component

201

6.5.7.5 Loose and Close Coupling

202

6.5.7.6 Integrating Nursing Documentation

202

6.5.8 Logical Tool Layer: Summary

202

6.6 Physical Tool Layer: Physical Data-Processing Systems

203

6.6.1 Servers and communication networks

204

6.6.2 Clients

204

6.6.3 Storage

205

6.6.4 Typical Non-computer-Based Physical Data-Processing Systems

205

6.6.5 Infrastructure

206

6.7 Physical Tool Layer: Integration of Physical Data-Processing Systems

207

6.7.1 Taxonomy of Architectures at the Physical Tool Layer

207

6.7.1.1 Distribution of Computing Power: Mainframes vs. Client-Server

208

6.7.2 Physical Integration

209

6.7.3 Computing Centers

210

6.7.4 Physical Tool Layer: Example

211

6.7.4.1 The Amount of Data to Be Processed at a Hospital’s Computing Center

211

6.7.5 Physical Tool Layer: Exercises

212

6.7.5.1 HIS Infrastructure

212

6.7.6 Physical Tool Layer: Summary

212

6.8 Summarizing Example

213

6.8.1 Health Information Systems Supporting Clinical Business Processes

213

Patient Treatment at a Physician’s General Practice

213

Sec154_6

213

Arrival at ward

213

Nursing Admission

213

Medical Admission

214

Medical Care Planning and Order Entry

214

Execution of Diagnostic, Therapeutic, and Nursing Procedures

214

Review of Findings

215

Decision Making

215

Sec162_6

215

Transfer to Another Department

215

Discharge from Hospital and Aftercare

216

6.9 Summarizing Exercises

216

6.9.1 Hospital Functions and Processes

216

6.9.2 Application Components and Hospital Functions

216

6.9.3 Multiprofessional Treatment Teams

217

6.9.4 Information Needs of Different Health Care Professionals

217

6.9.5 HIS Architectures

217

6.9.6 Communication Server

217

6.9.7 Anatomy and Physiology of Information Processing

217

6.10 Summary

218

7: Specific Aspects for Architectures of Transinstitutional Health Information Systems

219

7.1 Introduction

219

7.2 Domain Layer

220

7.2.1 Specific Aspects for Hospital Functions

220

7.2.1.1 Patient Admission

220

7.2.1.2 Decision Making, Planning, and Organization of Patient Treatment

221

7.2.1.3 Execution of Diagnostic and Therapeutic Procedures

221

7.2.2 Additional Enterprise Functions

222

7.3 Logical Tool Layer

222

7.3.1 Integration of Application Components

222

7.3.2Strategies for Electronic Health Record Systems

224

7.3.2.1The Provider-Centric Strategy

225

7.3.2.2The Patient-Centric Strategy

225

7.3.2.3The Regional- or National-Centric Strategy

226

7.3.2.4The Strategy of Independent Health Banks

226

7.4 Physical Tool Layer

226

7.5 Examples

227

7.5.1“Gesundheitsnetz Tirol (GNT)”: The Tyrolean Health Care Network

227

7.5.1.1Background and Overall Functionality

227

7.5.1.2System Architecture and Workflows

227

7.5.1.3 Important Lessons Learned

229

7.5.2 Veterans Health Information Systems and Technology Architecture (VISTA)7

230

7.5.3 The Hypergenes Biomedical Information Infrastructure9, 10

230

7.5.4 The National Health Information System in Korea11, 12

231

7.6Exercises

232

7.6.1Challenges of Transinstitutional Health Information Systems

232

7.6.2Strategies for Transinstitutional Electronic Health Records

232

7.6.3 The Term “Electronic Health Record”

233

7.6.4 Transinstitutional Information Systems in other Sectors

233

7.7 Summary

233

8: Quality of Health Information Systems

234

8.1 Introduction

234

8.2 Quality of Structures

235

8.2.1 Quality of Data

235

8.2.2 Quality of Computer-Based Application Components and Their Integration

236

8.2.3 Quality of Physical Data Processing Systems

238

8.2.4 Quality of the Overall HIS Architecture

239

8.2.5 Exercises

239

8.2.5.1 Quality Criteria in 3LGM² Models

239

8.2.5.2 Quality of Computer-Based Application Components

240

8.2.5.3 Usability of Software Products

240

8.2.5.4 Quality of HIS Architectures

240

8.2.6 Summary

240

8.3 Quality of Processes

241

8.3.1 Single Recording, Multiple Usability of Data

241

8.3.2 No Transcription of Data

241

8.3.3 Leanness of Information Processing Tools

241

8.3.4 Efficiency of Information Logistics

243

8.3.5 Patient-Centered Information Processing

243

8.3.6 Exercises

244

8.3.6.1 Quality of Processes in an Intensive Care Unit

244

8.3.6.2 Transcription of Data

244

8.3.6.3 Leanness of Information Processing Tools

244

8.3.6.4 Quality of Processes

244

8.3.7 Summary

245

8.4 Quality of Outcome

245

8.4.1 Fulfillment of Hospital’s Goals

246

8.4.2 Fulfillment of the Expectations of Different Stakeholders

246

8.4.2.1 Patients and Relatives

247

8.4.2.2 Health Care Professionals

247

8.4.2.3 Administrative Staff

247

8.4.2.4 Hospital Management

248

8.4.3 Fulfillment of Information Management Laws

248

8.4.4 Exercises

249

8.4.4.1 Expectation of Patients and Relatives

249

8.4.4.2 National Laws for Information Processing

249

8.4.5 Summary

249

8.5 Balance as a Challenge for Information Management

249

8.5.1 Balance of Homogeneity and Heterogeneity

250

8.5.2 Balance of Computer-Based and Non-Computer-Based Tools

250

8.5.3 Balance of Data Security and Working Processes

251

8.5.4 Balance of Functional Leanness and Functional Redundancy

252

8.5.5 Balance of Documentation Quality and Documentation Efforts

252

8.5.6 Exercises

253

8.5.6.1 Best-of-Breed Versus All-in-One

253

8.5.7 Summary

253

8.6 Evaluation of Health Information Systems Quality

254

8.6.1 Typical Evaluation Phases

254

8.6.1.1 Study Exploration

255

8.6.1.2 First Study Design

256

8.6.1.3 Operationalization of Methods and Detailed Study Plan

256

8.6.1.4 Execution of Study

257

8.6.1.5 Report and Publication of Study

257

8.6.2 Typical Evaluation Methods

257

8.6.2.1 Quantitative Evaluation Methods

257

Time Measurements

257

Event Counting

258

Quantitative Questionnaires

258

8.6.2.2 Qualitative Evaluation Methods

258

Qualitative Interviews

259

Qualitative Observations

259

Qualitative Content Analysis

259

8.6.2.3 Special Evaluation Studies

259

8.6.3 Exercises

260

8.6.3.1 Selection of Evaluation Criteria

260

8.6.3.2 Planning of an Evaluation Study

260

8.6.3.3 The Baby CareLink Study

261

8.6.4 Summary

261

8.7 Summarizing Examples

261

8.7.1 The Baldrige Health Care Information Management Criteria

261

8.7.2 Information Management Standards of the Joint Commission

262

8.7.3 The Baby CareLink Study18

263

8.7.4 In-Depth Approach: The Functional Redundancy Rate

263

8.8 Summarizing Exercises

268

8.8.1 Evaluation Criteria

268

8.8.2 Joint Commission Information Management Standards

268

8.9 Summary

268

9: Strategic Information Management in Hospitals

270

9.1 Introduction

270

9.2 Strategic, Tactical and Operational Information Management

271

9.2.1Information Management

271

9.2.2Information Management in Hospitals

274

9.2.3Strategic Information Management

275

9.2.4Tactical Information Management

276

9.2.5Operational Information Management

277

9.2.6Relationship Between IT Service Management and Information Management

279

9.2.7Example

281

9.2.7.1Typical Projects of Tactical Information Management

281

9.2.8Exercises

281

9.2.8.1Influences on HIS Operation

281

9.2.8.2Typical Projects of Tactical Information Management

281

9.2.8.3Diagnostics and Therapy of HIS

281

9.2.9Summary

282

9.3 Organizational Structures of Information Management

282

9.3.1Chief Information Officer

282

9.3.2Information Management Department

284

9.3.3Example

284

9.3.3.1Organizational Structures for Information Management

284

9.3.4Exercises

285

9.3.4.1Information Systems Managers as Architects

285

9.3.4.2Organizational Structures for Information Management in a Hospital

286

9.3.4.3Centralization of Organizational Structures

286

9.3.4.4Organizational Structures for Information Management at PMC

286

9.3.5Summary

286

9.4 Strategic Planning

287

9.4.1Tasks

287

9.4.1.1Aligning Business Plans and Information Management Plans

287

9.4.1.2Long-Term HIS Planning

288

9.4.1.3Short-Term HIS Planning

288

9.4.2Methods

289

9.4.2.1Strategic Alignment

289

9.4.2.2Portfolio Management

289

9.4.3The Strategic Information Management Plan

290

9.4.3.1Purpose of Strategic Information Management Plans

290

9.4.3.2Structure of Strategic Information Management Plans

292

Strategic Goals of the Hospital and of Information Management

292

Description of the Current State of the Hospital Information System

293

Analysis and Assessment of the Current State of the Hospital Information System

293

Description of the Planned State of the Hospital Information System

293

Migration Path from the Current to the Planned State

293

9.4.4Example

294

9.4.4.1Structure of a Strategic Information Management Plan

294

9.4.5Exercises

294

9.4.5.1Life Cycle of a Strategic Information Management Plan

294

9.4.5.2Deviation from a Strategic Information Management Plan

294

9.4.5.3Strategic Information Management and Strategic Hospital Management

294

9.4.5.4Establishing a Strategic Information Management Plan

296

9.4.6Summary

296

9.5 Strategic Monitoring

296

Root

296

9.5.1Tasks

297

9.5.1.1Permanent Monitoring Activities

297

9.5.1.2Ad Hoc Monitoring Activities

298

9.5.1.3Certification of HIS

299

9.5.2Methods

300

9.5.2.1HIS Benchmarking

300

9.5.2.2HIS Certification

300

9.5.3Examples

301

9.5.3.1A HIS Benchmarking Report

301

9.5.3.2COBIT

301

Plan and Organize

303

Acquire and Implement

303

Deliver and Support

303

Monitor and Evaluate

303

9.5.3.3CCHIT Functional Quality Criteria

304

9.5.4Exercises

305

9.5.4.1An Information Processing Monitoring Report

305

9.5.4.2COBIT

305

9.5.4.3Most Relevant Key Performance Indicators

305

9.5.4.4Organizing User Feedback

305

9.5.5Summary

305

9.6 Strategic Directing

306

Sec75_9

306

9.6.1Tasks

306

9.6.2Methods

306

9.6.3Example

307

9.6.3.1Project Management Boards at PMC

307

9.6.4Exercise

307

9.6.4.1A Project Management Board at PMC

307

9.6.5Summary

307

9.7Last But Not Least: Education!

308

9.8 Summarizing Examples

308

9.8.1Deficiencies in Information Management

308

9.8.2Computer Network Failures14

309

9.8.3Information Management Responsibilities15

310

9.8.4Safely Implementing Health Information and Converging Technologies

311

9.8.5Increased Mortality After Implementation of a Computerized Physician Order Entry System17

312

9.9 Summarizing Exercises

312

9.9.1Management of Other Information Systems

312

9.9.2Beginning and End of Information Management

312

9.9.3Cultivating Hospital Information Systems

313

9.9.4Hospital Information System Failure

313

9.9.5Increased Mortality

313

9.9.6Relevance of Examples

313

9.9.7Problems of Operational Information Management

313

9.10 Summary

314

10: Strategic Information Management in Health Care Networks

316

10.1 Introduction

316

10.2 Description of Health Care Networks

317

10.3 Organizational Structures of Information Management in Health Care Networks

317

10.3.1Centrality of Information Management in Health Care Networks

317

10.3.2Intensity of Information Management in Health Care Networks

319

10.4 Types of Health Care Networks

319

10.5 Example

320

10.5.1Regional Health Information Organizations

320

10.6Exercise

321

10.6.1The Plötzberg Health Care Network

321

10.7 Summary

321

11: Final Remarks

323

Thesaurus

325

Recommended Further Readings

358

Index

361