Overview
EN ISO 19116:2025 - Geographic information - Positioning services (ISO 19116:2025) defines a standardized interface and data model that permits communication between position‑providing device(s) and position‑using device(s). The standard specifies the structure and content needed so a position‑using device can obtain, unambiguously interpret, and evaluate position information - including a measure of the reliability (degree of confidence) - to determine whether that position meets the requirements of the intended use. ISO 19116:2025 (third edition) supersedes earlier 2019/2021 editions and is published as EN ISO 19116:2025.
Key technical topics and requirements
- Positioning services model: static data structures and service-level models describing how positioning results are represented and exchanged.
- Basic and extended information: definitions for system, session and observation information, including instrument identification, referencing methods and measurement types.
- Quality and reliability: standardized representations of positioning quality, reliability models, and requirements for reporting confidence and performance indicators.
- Observation and offset handling: observation modes, coordinate offsets and transfer values for accurate interpretation of results.
- Technology‑specific information: operating and computational conditions, position fix and processing modes, raw measurement data support (e.g., for GNSS).
- Conformance and interoperability: conformance clauses, normative requirements and annexes that guide implementation and testing.
- Informative annexes: guidance on implementing accuracy reports, GNSS operating conditions, reliability evaluation methods, extension examples and use cases.
Practical applications and typical users
This positioning services standard is useful wherever reliable, interoperable position information is needed:
- Surveying and geodesy - exchange of high‑precision positioning and raw measurements.
- Navigation and intelligent transportation systems (ITS) - consistent position and quality reporting for road, rail and airborne systems.
- Location‑based services (LBS) - unified position interface for consumer and enterprise apps that need to assess positional reliability.
- Device and software manufacturers - implement standard interfaces in GNSS receivers, sensors, and positioning middleware to ensure interoperability.
- System integrators and GIS developers - integrate heterogeneous positioning technologies into geospatial workflows.
- Standards bodies and QA teams - use conformance rules and annex guidance for certification and testing.
Related standards and context
ISO 19116:2025 is part of the ISO geographic information/geomatics family (ISO/TC 211) and complements other ISO 191xx standards that address geospatial data models, reference systems and metadata. Implementers should consider these related standards when designing end‑to‑end positioning and geospatial solutions.
Keywords: ISO 19116:2025, EN ISO 19116:2025, positioning services, geographic information, positioning interface, positioning reliability, GNSS, positioning data model, ITS, LBS.