Open Interoperability Framework Vocabulary Terms

Term	Definition	Reference
Audit Trail	An Audit Trail is a security mechanism that registers all messages exchanged from external interfaces. It serves to ensure resilience against various threats including natural disasters, war, terrorism, fraud, criminal behavior, and system failures.
Boundaryless Information Flow	Boundaryless Information Flow is a mission concept and trademark of The Open Group that enables seamless exchange of information across organizational and system boundaries through effective interoperability. It is achieved through collaborative efforts with customers and suppliers to understand requirements and develop standards. The concept emphasizes enhancing consortia efficiency and establishing certification services to ensure reliable information exchange.
Checksum	A checksum is a standard technique for validating message veracity and protecting the integrity of messages being exchanged as part of interoperability requirements. It can be generated and verified by the technical gateway to ensure data integrity across different systems.
Cloud Computing Interoperability	Cloud Computing Interoperability is the ability of various components hosted on cloud to interface and work together seamlessly irrespective of the hosting cloud environment. It enables applications, services, and systems to communicate and exchange data regardless of their underlying infrastructures.
Commerce Interoperability Column	The Commerce Interoperability Column is a collection of use cases where enterprises interoperate for service provision or product delivery between provider and consumer organizations. It requires transaction integrity and non-repudiation across boundaries, typically implementing security measures and protocols like Two Phase Commit or reversing transactions for state integrity.
Constitutional Permissibility	Constitutional permissibility is the state where an interoperability objective is allowed under a domain's constitution. It is a fundamental requirement for implementing legislative interoperability, though permissibility alone does not guarantee that interoperability will be permitted under all conditions.
Demarcation Of Responsibility	Demarcation of Responsibility is the precise definition of boundaries between interoperating organizations' duties and functions. It ensures that all issues have clear ownership, and where responsibilities overlap, there is agreement on which organization performs specific functions. This is fundamental to establishing effective federated service interoperability.
Ecosystems Architecture	An Ecosystems Architecture is an architectural approach where no single organization governs the overall architecture, necessitating open interfaces to achieve interoperability between participating systems.
Enterprise Architects	Enterprise Architects are professionals who guide organizations in making decisions about system interoperability and use frameworks like the interoperability cube to achieve connectivity between multiple systems.
Federated Service Interoperability	Federated Service Interoperability is the delivery of a service that crosses borders of jurisdiction, language, governance, or technical domain, where participating organizations are qualified and responsible for their part but cannot control each other. This involves precise demarcation of responsibilities between organizations. The concept requires addressing security and compliance due to confidentiality requirements. It applies to both public services and commercial interactions across domains.
Governance Interoperability	Governance Interoperability is a framework component that ensures compliance with legal requirements and policies in interoperability solutions, particularly regarding data protection, privacy, and domain-specific regulations. It follows a layered model structure incorporating constitutional, legislative, and jurisdictional aspects. The framework manages security and ethical considerations while mitigating interoperability risks. It serves as a crucial element in designing architectural building blocks for interoperable systems.
Interface Response Scenarios	Interface Response Scenarios are the three possible ways a receiving system may respond to a message across an external interface: providing a business level reply, abandoning the message without reply, or acknowledging with a postponed reply. Each scenario requires specific handling procedures to maintain business continuity.
Interoperability	Interoperability is the capability of different systems and functional units to communicate, exchange data, and work together seamlessly without requiring users to understand their underlying complexities. This collaboration requires establishing common protocols, standards, and rules of engagement. Technical interoperability is complemented by organizational and legal frameworks that enable smooth cross-system operations. The end goal is to create a unified experience where diverse systems function as an integrated whole.
Interoperability Architecture	Interoperability Architecture is the framework that addresses security and compliance requirements in federated services. It specifically focuses on maintaining confidentiality as required by legislation or service objectives while enabling cross-border or cross-domain service delivery.
IoT Network Interoperability	IoT Network Interoperability is the capability of IoT devices to communicate within a network while considering device constraints. It requires careful consideration of simultaneous communication capabilities, data rate requirements, and power requirements due to the limited size and power capacity of IoT devices.
Jurisdictional Interoperability Layer	The Jurisdictional Interoperability Layer is a governance framework that manages and enforces legal, regulatory, and security requirements for information exchange between systems across different domains. It implements policies and principles that determine the constitutional and legal permissibility of interoperability actions between systems. The framework ensures compliance with jurisdictional mandates while maintaining secure data exchange. It also serves as a tool for analyzing compatibility and feasibility of interoperability across different constitutional and legal boundaries.
Legislative Interoperability	Legislative Interoperability is a framework that enables and governs legal interactions between different domains while ensuring compliance with their respective constitutional and jurisdictional requirements. The framework consists of specific rule sets that must be followed when establishing collaborative relationships between governance domains. These rules can both enable and restrict how interoperability objectives are implemented in practice. When legal barriers prevent straightforward solutions, alternative approaches or legislative changes may be necessary to achieve the desired interoperability.
Malignant Data Filtering	Malignant data filtering is a security process that prevents harmful data from reaching destination systems by detecting, quarantining, or destroying data containing potentially dangerous binary logic patterns.
Master Data Management	Master Data Management is a governance strategy that determines the master/slave relationship of information elements involved in collaboration between systems. It is implemented as part of an organization's overall information governance.
Network & Media Layer	The Network & Media Layer is a foundational infrastructure component that enables data exchange and communication between different systems through standardized networking protocols and physical media. It supports interoperability across diverse platforms and domains by implementing common protocols like TCP/IP and HTTP/S. The layer allows systems to maintain their independent networking standards while still communicating through technical gateways.
Network Topology	Network Topology is the arrangement of communication infrastructure that defines how systems connect and interact. It includes specifications for communicating infrastructure, DNS naming conventions, IoT requirements, and security requirements including firewalls, routers, DMZ, access rights and authentication.
O-DEF	The Open Data Element Framework (O-DEF) is a standard that enables basic units of data to be classified, so that equivalences and similarities between them can be easily determined.
O-DF	The Open Data Format (O-DF) is a standard that provides a structured approach for including metadata to relate different objects to each other, such as connecting a temperature sensor to a specific room or wall.
O-MI	The Open Messaging Interface (O-MI) is a standardized approach for enabling automatic synchronization of information between systems. It provides methods for setting up subscriptions to receive information updates, supports one-time pull and push operations, and allows querying of past information.
Object Class	An object class is a set of ideas, abstractions, or things in the real world that are identified with explicit boundaries and meaning, whose properties and behavior follow the same rules. Object classes represent categories of items sharing common characteristics, such as substances or products, and any property of the class applies to all its instances. They differ from roles in that they represent inherent classifications rather than contextual functions.
Open Interoperability Framework Cube	The Open Interoperability Framework Cube is a three-dimensional structured approach that defines and organizes the components, decisions, and modes of operation needed to achieve interoperability across systems, organizations, and governance domains. It consists of three main vertical slices addressing Systems, Organizational, and Governance (Legal) Interoperability. The framework provides flexibility to accommodate different operational modes and future additions. It serves as a comprehensive guide for enterprise architects to implement and manage interoperability across multiple dimensions.
Organizational Interoperability	Organizational Interoperability is a set of structured arrangements that enable different organizations to work together effectively to achieve common or compatible objectives. These arrangements are typically governed within business or administrative contexts and can involve various modes of operation between organizations. The concept is a key component of broader interoperability frameworks, particularly the Open Interoperability Framework. Organizations can include private businesses, public institutions, and administrative bodies, all operating under defined frameworks and protocols.
Procedural Interoperability Layer	The Procedural Interoperability Layer is a component that enables mutual benefit through compatible business processes in information exchange. It requires a fully implemented Semantic Layer and handles process adaptations necessary for coordinated business state changes across different enterprise systems. This includes deadlock prevention, conflict resolution, and error handling.
Property	A property is a characteristic applicable to all members of an object class, similar to an attribute in data modeling. Properties define common characteristics like date of birth that apply uniformly across object class members.
RESTful APIs	RESTful APIs (Representational State Transfer Application Programming Interface) is a popular standard that allows web-based applications to exchange data.
Regional Classifications	Regional classifications are systematic differences in how object classes and properties are categorized across different geographical regions. For example, vehicle license plate classifications vary between European countries, and age-based classifications of minors versus adults differ across regions.
Relationship	A relationship is a connection between object classes or object subclasses within a specific domain, such as when a person object performs the role of manager within an enterprise object.
Representation	A representation is the explicit format requirement for any given object class and property pair. For example, a date might have a required numerical format like mm/dd/yyyy.
Security Requirements	Security requirements are explicitly defined and enforced read and/or write access restrictions that apply to object class and property pairs.
Semantic Interoperability Layer	The Semantic Interoperability Layer is a capability that ensures the precise meaning and format of data is preserved and correctly understood when exchanged between different systems or organizations. This is achieved through either shared data models or semantic transposition mechanisms. The layer builds upon technical interoperability foundations to enable consistent interpretation of information across different contexts. It acts as a crucial bridge that transforms data syntax into meaningful, actionable information that all parties can understand in the same way.
Shadow System Environment	A Shadow System Environment is an exact replica of a production environment that operates using copied real data while requiring full undo capabilities. This environment differs from training and development environments by maintaining production-level fidelity. It enables testing and simulation without affecting the actual production system. The requirement for undo capabilities is crucial to prevent unintended duplication of production results.
Simulation Interoperability	Simulation Interoperability is a cooperation between organizations where all state changes in the interoperating system must be reversible, leaving no permanent changes in the domain of interoperability. This type of interoperability is particularly important when different governance domains have varying policies regarding information systems implementation.
Standardized Vocabularies	Standardized vocabularies are domain-specific data standards that are suitable for enabling interoperability between different domains. These include standards managed by organizations like the United Nations and ISO, which can be utilized as plug-ins when the O-DEF Standard is adopted.
Subclass	A subclass is a specialized category within an object class that inherits all properties of its parent class while maintaining its own distinct identity. For example, carbon is a subclass of substances, inheriting all substance properties while having its own specific characteristics. Subclasses represent permanent classifications rather than temporary roles or uses.
Systems Interoperability Slice	The Systems Interoperability Slice is a layered architectural framework that enables different enterprise systems to collaborate and exchange information effectively to achieve common business goals. It operates as a component of the Framework Cube, specifically addressing interoperability challenges in information systems. The framework is structured into four interdependent layers, each building upon the capabilities of the layer below. This layered approach facilitates the implementation of mechanisms and protocols necessary for meaningful system-to-system cooperation within an Information and Communications Technology context.
Technical Gateway	A Technical Gateway is a common interface that performs data conversions between different systems, handling tasks such as character encoding conversion, time zone adjustments, currency conversions, and message reformatting. It serves as a trusted intermediary that can process encrypted data and ensure secure data exchange between multiple enterprises.
Technical Interoperability Layer	The Technical Interoperability Layer is a system capability that resolves technical differences between interoperating systems exchanging data, handling aspects like syntactical differences, unit conversions, and format transformations. It requires a fully implemented Network & Media Interoperability Layer and operates independently of the data's semantic meaning.
Test System Environment	A Test System Environment is a non-production system that mirrors a related production environment for development and testing purposes without generating binding operational data. It enables controlled testing of interoperability scenarios with reproducible results. The environment maintains a separation from production systems to ensure safety and reliability. It serves as a crucial platform for validating changes before they are implemented in the production environment.
Value Constraints	Value constraints are explicitly defined rules for object class and property pairs that specify allowable values. These can include restrictions like minimum and maximum values, months in a year, country names, marital state, and IP addresses.
Vocabulary	A Vocabulary is a sum or stock of words employed by a language, group, individual, or work or in a field of knowledge.