Editing High Level Architecture (section)

=== HLA 1516-2000 ===
HLA IEEE 1516-2000 was published in 2000 by IEEE. It consists of:
* IEEE Std 1516–2000 – Standard for Modeling and Simulation High Level Architecture – Framework and Rules
* IEEE Std 1516.1–2000 – Standard for Modeling and Simulation High Level Architecture – Federate Interface Specification
* IEEE 1516.1–2000 Errata (2003-oct-16)
* IEEE 1516.2-2000 – Standard for Modeling and Simulation High Level Architecture – Object Model Template (OMT) Specification

Major improvements in IEEE 1516-2000 included an XML-based FOM with detailed data type specifications, as well as an improved DDM design.

The IEEE 1516-2000 standard was also complemented by a recommended development process as well as a recommended VV&A process:
* IEEE 1516.3-2003 – Recommended Practice for High Level Architecture Federation Development and Execution Process (FEDEP). This standard would later become IEEE Std 1730-2010 Distributed Simulation Engineering and Execution Process ([[DSEEP]])
* IEEE 1516.4-2007 – Recommended Practice for Verification, Validation, and Accreditation of a Federation an Overlay to the High Level Architecture Federation Development and Execution Process

It was soon found that the 1516-2000 standard had APIs that were slightly different for each RTI implementation. SISO produced a standard with alternate, dynamic link compatible (DLC) C++ and Java APIs:

* SISO-STD-004.1-2004: Standard for Dynamic Link Compatible HLA API Standard for the HLA Interface Specification (IEEE 1516.1 Version)
* SISO-STD-004-2004: Standard for Dynamic Link Compatible HLA API Standard for the HLA Interface Specification (v1.3)

The DLC APIs were later merged into the main standard.