Foreword
Introduction
1. Scope
2. Definitions
3. Symbols and abbreviations
3.1 Symbols
3.2 Abbreviations
4. Data management Requirements
4.1 Purpose
4.2 Information systems
4.2.1 Context of Data Management in an Information System
4.3 Database and schema
4.4 Data Modelling Facility
4.5 Data management services
4.6 Data management services
4.7 Processors and interfaces
4.8 Access control
4.8.1 Definition and modification of access control privileges
4.8.2 Enforcement of access control
4.8.3 Security external to data management
4.9 Operational requirements to support data management
4.9.1 Information systems life cycle support
4.9.2 Configuration management, version control and variants
4.9.3 Concurrent processing
4.9.4 Database transaction management
4.9.5 Performance engineering
4.9.6 Referencing data
4.9.7 Extensible Data Modelling Facility
4.9.8 Support for different Data Modelling Facilities at
user interface
4.9.9 Audit trails
4.9.10 Recovery
4.9.11 Logical data restructuring
4.9.12 Physical storage reorganisation
4.10 Additional operational requirements to support data
management in distributed information system
4.10.1 Distribution control
4.10.2 Database transaction management
4.10.3 Communications
4.10.4 Export/import
4.10.5 Distribution independence
4.10.6 System autonomy
4.10.7 Recovery of a distributed database
4.11 Dictionary systems
5. Concepts for data level pairs and related processes
5.1 Purpose
5.2 Level pairs
5.2.1 Interlocking level pairs
5.2.2 Recursive use of level pairs
5.2.3 Operations on level pairs
5.3 Dependence of level pairs on a Data Modelling Facility
5.3.1 Level pairs and data structuring rules
5.3.2 Level pairs and data manipulation rules
5.4 Level pairs and associated processes
5.5 Access control for level pairs
5.6 Schema modification
6. Architectural model
6.1 Purpose
6.2 Modelling concepts
6.2.1 Characteristics of Reference Model processors
6.2.2 Levels of abstraction
6.2.3 Notation for processors
6.3 The generic model of data management
6.3.1 Generic Database Controller
6.3.2 User Processor
6.3.3 User
6.4 Specialization of the model in different environments
6.5 Data base environment
6.6 Distributed data management
6.6.1 Distribution controller
6.6.2 Role of Distribution Controller and level pairs
6.7 Export/Import model
6.8 Access Control for Data Management
7. Objectives and principles for data management
standardization
7.1 Purpose
7.2 Technical objectives associated with data management
standardization
7.2.1 Support for all distributed scenarios
7.2.2 Location independence
7.2.3 Standardized database transaction management
7.2.4 Export and import of databases
7.2.5 Reduced complexity of handling data
7.2.6 Overall performance in distributed scenarios
7.2.7 Data independence
7.2.8 Application portability
7.2.9 Extensible Data Modelling Facility
7.2.10 Flexible presentation of data to users
7.3 Means of achieving objectives
7.3.1 Same data modelling facility for each level pair
7.3.2 Same interchange mechanism for all level pairs
7.3.3 Same processors usable for all level pairs
7.3.4 Standardized services at Database Controller interface
7.3.5 Standardized approach to access control
7.3.6 Standardized representation of data needed to facilitate
interoperability
7.3.7 Support data fragmentation
7.3.8 Separation of logical and physical structures
7.3.9 Access to schema during execution
7.3.10 User data modelling facility different from interchange
data modelling facility
7.4 Aspects of data management standards
7.4.1 Categories of data management standard
7.4.2 Role of a data modelling facility in standardization
7.4.3 Standardization styles
Annex A (informative) Related International Standards
Annex B (informative) Relationship of existing and developing
database standards to the architecture of the Reference
Model of Data Management
B.1 Purpose
B.2 Database Languages
B.2.2 NDL
B.3 Information Resource Dictionary System, IRDS
B.3.1 IRDS Framework
B.3.2 IRDS Services Interface
B.4 Remote Database Access, RDA
B.5 Export/Import
B.6 Candidates for standardization
Annex C (informative) Index of terms
Figures
1. Position of Data Management System within an Information
System
2. Level pair construct
3. Interlocking level pair
4. Generalized interlocking level pairs
5. Creation of an empty database
6. Binding and data manipulation
7. Example processor diagram
8. The generic model of data management
9. Example of access to a database environment
10. Example of access to many database environments
11. Distributed data management
12. The model of export/import
13. Access control in a distributed environment
B.1 Generic model of data management specialized for SQL
B.2 Model of distributed data management specialized for SQL
B.3 Position of an NDL Database Controller
B.4 Generic model of data management specialized for IRDS
B.5 Model of distributed data management specialized for
RDA SQL
B.6 Export/Import for an SQL database
B.7 Position of RDA for distributed data management
Tables
B.1 Relation of terms: SQL/RMDM clause 6
B.2 Relation of terms: SQL/RMDM clause 5
B.3 Relation of terms: IRDS/RMDM
B.4 Relation of terms: IRDS/RMDM clause 5