Aerospace series - Modular and Open Avionics Architectures - Part 005: Software

This European Standard establishes uniform requirements for design and development of software
architecture for modular avionics systems.

Luft- und Raumfahrt - Modulare und offene Avionikarchitekturen - Teil 005: Software

Diese Europäische Norm legt einheitliche Anforderungen an den Entwurf und die Entwicklung von Software¬architekturen für modulare Avioniksysteme fest.

Série aérospatiale - Architectures Avioniques Modulaires et Ouvertes - Partie 005 : Software

Aeronavtika - Modularne in odprte letalske elektronske arhitekture - 005. del: Programska oprema

Ta evropski standard določa enotne zahteve za načrtovanje in razvoj programske opreme arhitekture za modularne letalske sisteme.

General Information

Status
Published
Publication Date
08-Sep-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
02-Sep-2019
Due Date
07-Nov-2019
Completion Date
09-Sep-2019

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SLOVENSKI STANDARD
SIST EN 4660-005:2019
01-oktober-2019
Nadomešča:
SIST EN 4660-005:2011
Aeronavtika - Modularne in odprte letalske elektronske arhitekture - 005. del:
Programska oprema
Aerospace series - Modular and Open Avionics Architectures - Part 005: Software
Luft- und Raumfahrt - Modulare und offene Avionikarchitekturen - Teil 005: Software
Série aérospatiale - Architectures Avioniques Modulaires et Ouvertes - Partie 005 :
Software
Ta slovenski standard je istoveten z: EN 4660-005:2019
ICS:
35.080 Programska oprema Software
49.090 Oprema in instrumenti v On-board equipment and
zračnih in vesoljskih plovilih instruments
SIST EN 4660-005:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 4660-005:2019

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SIST EN 4660-005:2019


EN 4660-005
EUROPEAN STANDARD

NORME EUROPÉENNE

August 2019
EUROPÄISCHE NORM
ICS 49.090 Supersedes EN 4660-005:2011
English Version

Aerospace series - Modular and Open Avionics
Architectures - Part 005: Software
Série aérospatiale - Architectures Avioniques Luft- und Raumfahrt - Modulare und offene
Modulaires et Ouvertes - Partie 005 : Logiciel Avionikarchitekturen - Teil 005: Software
This European Standard was approved by CEN on 2 December 2018.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4660-005:2019 E
worldwide for CEN national Members.

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SIST EN 4660-005:2019
EN 4660-005:2019 (E)
Contents
Page
European foreword . 5
Introduction . 6
1 Scope . 7
1.1 General scope . 7
1.2 Software Architecture Overview . 7
1.3 Software Architectural Components . 7
1.3.1 General . 7
1.3.2 Functional Applications . 8
1.3.3 Application Management (AM) . 8
1.3.4 Operating System (OS) . 8
1.3.5 Generic System Management (GSM). 8
1.3.6 Run-Time Blueprints (RTBP) . 9
1.3.7 Module Support Layer (MSL) . 9
1.3.8 Application to OS Interface (APOS) . 9
1.3.9 Module Support to OS Interface (MOS). 9
1.3.10 System Management to Blueprints Interface (SMBP) . 9
1.3.11 System Management to OS Interface (SMOS) . 9
1.3.12 OS Logical Interface (OLI) . 9
1.3.13 GSM Logical Interface (GLI) . 9
1.3.14 System Management Logical Interface (SMLI) . 9
1.3.15 Module Logical Interface (MLI) . 9
2 Normative references . 10
3 Terms, definitions and abbreviations . 11
3.1 Terms and definitions . 11
3.2 Abbreviations . 11
4 System Functions. 14
4.1 System Management Function. 14
4.1.1 General . 14
4.1.2 GSM Function . 15
4.1.3 AM Function . 18
4.1.4 Error Handling . 19
4.1.5 Built-In Test . 19
4.2 Communication . 21
4.2.1 MOAA Communication Model . 21
4.2.2 Types of Data Transfer . 24
4.2.3 Communication Configuration . 25
4.2.4 Communication Protocols . 26
4.2.5 Multicast . 28
4.2.6 Distributed Multicast . 30
4.2.7 Streaming . 34
4.2.8 Data Representation . 34
4.3 Security Management . 40
4.3.1 Application Security Management . 40
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4.3.2 Generic Security Management . 41
4.3.3 Encryption/Decryption and Authentication . 42
4.3.4 Security Audit . 43
4.3.5 Security Reference Monitoring . 43
4.4 Module Management . 43
4.5 Mass Memory Management . 44
4.5.1 Overview . 44
4.5.2 MMM Local File Management . 44
4.5.3 Application File Access . 45
4.5.4 CFM Download . 45
4.5.5 Application Downloading . 46
4.6 Graphics Management . 47
4.7 Power Management . 47
4.7.1 GSM Controlled Solution . 48
4.7.2 MLI Controlled Solution. 49
4.8 Network Management . 50
4.8.1 Network Definition . 50
4.8.2 Network Configuration . 50
4.8.3 Network Health Monitoring . 51
4.8.4 Network Technology Transparency . 51
4.9 Time Management . 51
4.9.1 Time reference . 52
4.9.2 Clock Hierarchy . 53
4.9.3 Clock Configuration . 54
4.9.4 Clock Management . 54
5 Software Architecture Definition . 55
5.1 MSL . 56
5.1.1 MSL Module Management . 56
5.1.2 MSL Communication Capability . 57
5.1.3 Resident Software . 61
5.2 OSL . 61
5.2.1 GSM . 61
5.2.2 OS Functions . 69
5.3 RTBP . 86
5.3.1 Overview . 86
5.3.2 RTBP tree . 86
5.3.3 SMBP Services to Access the RTBP Tables . 87
5.4 Application Layer. 88
5.4.1 Language Considerations . 89
5.4.2 Application Error Handling . 89
6 Direct Interfaces Definitions . 90
6.1 APOS . 90
6.2 MOS . 93
6.2.1 Generic MOS . 95
6.2.2 Specific Services . 137
6.2.3 MOS Bespoke Extension Services . 152
6.3 SMBP . 170
6.3.1 RTBP Tree Grammar . 171
6.3.2 Services for Retrieving Tables . 177
6.4 SMOS . 187
6.4.1 Process and Thread Management Services . 189
6.4.2 Fault Management Services . 190
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6.4.3 VC Configuration Services . 192
6.4.4 Network Configuration Services . 199
6.4.5 Security Management Services. 202
6.4.6 Built-In Test Management Services . 207
6.4.7 CFM Information Services . 211
6.4.8 CFM Resources Management Services . 214
6.4.9 Time Configuration Services . 217
6.4.10 Logging Management Services . 218
7 Logical Interfaces Definitions . 222
7.1 OLI . 222
7.1.1 VC Header . 222
7.1.2 OLI Services . 222
7.2 GLI . 222
7.2.1 GLI Representation . 222
7.2.2 GLI Services . 222
7.3 SMLI . 230
7.3.1 SMLI Representation . 230
7.3.2 SMLI Services . 230
7.4 MLI . 238
7.4.1 TC Header . 238
7.4.2 MLI Services . 238
7.4.3 Protocol . 259
8 Data Type Definitions . 265
8.1 IDL . 265
8.1.1 General . 265
8.1.2 Basic Types . 265
8.1.3 Name Spaces . 265
8.1.4 Limitations . 266
8.2 Data Types . 266
9 Tailoring . 290
Annex A (normative) RTBP XML Schema . 297
A.1 MOAA Types . 297
A.2 MOAA Type Extensions . 303
A.3 MOAA Runtime Blueprints . 306
Annex B (informative) Standard Evolution Form . 320
Bibliography . 321


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SIST EN 4660-005:2019
EN 4660-005:2019 (E)
European foreword
This document (EN 4660-005:2019) has been prepared by the Aerospace and Defence Industries
Association of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
ASD, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2020, and conflicting national standards
shall be withdrawn at the latest by February 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 4660-005:2011.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
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EN 4660-005:2019 (E)
Introduction
The purpose of this MOAA standard is to define a set of open architecture standards, concepts &
guidelines for Advanced Avionics Architectures (A3).
The three main goals for the MOAA Standards are:
 reduced life cycle costs;
 improved mission performance;
 improved operational performance.
The MOAA standards are organised as a set of documents including:
 a set of agreed standards that describe, using a top down approach, the Architecture overview to all
interfaces required to implement the core within avionics system and
 the guidelines for system implementation through application of the standards.
The document hierarchy is given hereafter: (in Figure 1 the document is highlighted)

Figure 1 — MOAA Standard Documentation Hierarchy
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SIST EN 4660-005:2019
EN 4660-005:2019 (E)
1 Scope
1.1 General scope
This European Standard establishes uniform requirements for design and development of software
architecture for modular avionics systems.
1.2 Software Architecture Overview
The MOAA Software Architecture is based on a three-layer stack as shown by a simplified Figure 2.

Figure 2 — MOAA Three Layer Software Architecture
Each layer is described in terms of it dependency/independency on both the aircraft system and the
underlying hardware.
Table 1 — Software Layer Independence
Software Layer Aircraft Dependency Hardware Dependency
Application Layer (AL) Dependent Independent
Operating System Layer (OSL) Independent Independent
Module Support Layer (MSL) Independent Dependent

1.3 Software Architectural Components
1.3.1 General
Figure 3 provides an overview of the software architectural components and software interfaces.
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Figure 3 — The Software Architecture Model
1.3.2 Functional Applications
The term “Functional Applications” relates to all functions that handle the processing of operational
data, e.g.
 Radar Applications;
 Mission Management;
 Stores Management;
 Vehicle Management System;
 Communication, Navigation and Identification.
1.3.3 Application Management (AM)
AM is responsible for the non-standardised system management, i.e. the AM performs the non-generic
system management. As an example, the AM may perform the mission/moding management. The
interface between the AM and GSM is the System Management Logical Interface (SMLI) (see 4.1.3).
1.3.4 Operating System (OS)
A Real-Time OS provides the part of OSL functionality that controls the real-time behaviour of the
Processing Element and its associated resources (see 5.2.2).
1.3.5 Generic System Management (GSM)
The GSM is responsible for the management of the core processing (see 4.1.2 and 5.2.1). This
functionality is divided into four areas:
 Health Monitoring;
 Fault Management;
 Configuration Management;
 Security Management.
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1.3.6 Run-Time Blueprints (RTBP)
The RTBP contain the information (e.g. process description, routing information, fault management
data) required to configure and manage the core processing on which it is hosted (see 5.3).
1.3.7 Module Support Layer (MSL)
The MSL encapsulates the details of the underlying hardware and provides generic, technology
independent access to low-level resources (see 5.1).
1.3.8 Application to OS Interface (APOS)
The APOS is a direct interface that separates the aircraft dependent software (AL) from the aircraft
independent software (OSL). Its purpose is to provide the processes in the AL with a standardised OS
independent interface to those services provided by the OS, thus promoting the portability and re-use of
application software (see 6.1).
1.3.9 Module Support to OS Interface (MOS)
The MOS is a direct interface that separates the OSL from the hardware dependent software (MSL). Its
purpose is to provide the OS with a hardware independ
...

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