ISO/IEC 18023-3 — Transmittal format binary encoding

Introduction

Purpose

This part of ISO/IEC 18023 defines the binary encoding for SEDRIS transmittals that has been termed the SEDRIS Transmittal Format (STF).

<>ISO/IEC 18023 specifies a data representation model (DRM), an abstract transmittal format (ATF), a binary encoding conforming to the ATF given the name SEDRIS transmittal format (STF), and an application program interface (API).  The API supports both the DRM and the transmittal formats by creating and accessing SEDRIS transmittals for interchange of environmental representations. Two other International Standards: ISO/IEC 18025, the Environmental data coding specification (EDCS), and ISO/IEC 18026, the Spatial reference model (SRM), are used by the DRM to completely and unambiguously describe environmental information.

In this manner, the SEDRIS API permits applications to access, and consequently interchange, environmental data independent of any architecture and information storage technologies that a particular environmental data generation system or application uses.

Design goals

The following design goals were followed when designing the STF:

  1. The SEDRIS API can be implemented for this format.
  2. The design should be platform independent.
  3. Everything in the SEDRIS data representation model should be able to be captured, but not necessarily using the same structures.
  4. Lossless compacting of the data should be allowed.
  5. The STF should be as efficient as possible for general purpose use of the API. Efficiency is balanced in that it is not tailored to specific transmittal configurations or API usage.
  6. Existing standards should be used for external resources.