EN 14160:2001

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
  3.1 Terms and definitions
  3.2 Abbreviated terms
4 Space system software engineering
  4.1 Introduction
  4.2 Organisation of this standard
  4.3 Space system software engineering processes
      4.3.1 General
      4.3.2 Software requirements engineering process
      4.3.3 Software design engineering process
      4.3.4 Software verification and validation
            (qualification) process
      4.3.5 Software operations engineering process
      4.3.6 Software maintenance process
  4.4 Relation to space project management and space product
      assurance standards
      4.4.1 General
      4.4.2 Software product assurance
      4.4.3 Software project management
  4.5 Verification engineering
5 General requirements
  5.1 Introduction
  5.2 System engineering processes related to software
      5.2.1 Introduction
      5.2.2 System requirements analysis
      5.2.3 System partitioning
      5.2.4 System level requirements for software verification
            and validation
      5.2.5 System level integration of software
      5.2.6 Software operations
  5.3 Software management
      5.3.1 Introduction
      5.3.2 Software life cycle
      5.3.3 Interface management
      5.3.4 Technical budget and margin management
  5.4 Software requirements engineering process
      5.4.1 Introduction
      5.4.2 Software requirements analysis
      5.4.3 Software top-level architectural design
      5.4.4 Software verification and validation
  5.5 Software design engineering process
      5.5.1 Introduction
      5.5.2 Design of software items
      5.5.3 Coding and testing
      5.5.4 Integration
  5.6 Software verification and validation (qualification)
      process
      5.6.1 Introduction
      5.6.2 Milestones
      5.6.3 Verification and validation processes
      5.6.4 Verification process implementation
      5.6.5 Validation process implementation
      5.6.6 Verification process
      5.6.7 Validation process
      5.6.8 Joint technical review process
  5.7 Software operations engineering process
      5.7.1 Introduction
      5.7.2 Operation process
      5.7.3 Process implementation
      5.7.4 Operational testing
      5.7.5 System operation
      5.7.6 User support
  5.8 Software maintenance process
      5.8.1 Introduction
      5.8.2 Process implementation
      5.8.3 Problem and modification analysis
      5.8.4 Modification implementation
      5.8.5 Maintenance review and acceptance
      5.8.6 Software migration
      5.8.7 Software retirement
6 Special requirements
  6.1 Introduction
  6.2 Space segment software
      6.2.1 General
      6.2.2 Critical functions
      6.2.3 System interfaces
      6.2.4 Inflight software modifications
  6.3 Ground segment software
  6.4 Software re-use
      6.4.1 General
      6.4.2 Developing software for intended re-use
      6.4.3 Re-using software from other projects
  6.5 Man-machine interfaces
  6.6 Critical software
Annex A (normative) Software documentation
      A.1 Introduction
      A.2 The requirements baseline (RB)
          A.2.1 General
          A.2.2 Requirements baseline contents at SRR
          A.2.3 Interface requirements document (IRD)
      A.3 Technical specification (TS)
          A.3.1 General
          A.3.2 Interface control document (ICD)
          A.3.3 Software maintenance plan
          A.3.4 Operations manual
      A.4 Design justification file (DJF)
      A.5 Design definition file (DDF)
      A.6 System level documentation
          A.6.1 Introduction
          A.6.2 Operations, maintenance, migration and
                retirement documentation
Annex B (informative) Requirement cross references
Annex C (informative) References to other space standards
Bibliography

This European Standard defines the space software engineering process and its interfaces with the space project management standards (EN 13290) and space product assurance standards (EN 13291) and explains how they apply in the software engineering process.This Standard is applicable to all the elements of a space system, including the space segment, the launch service segment and the ground segment.This Standard covers all aspects of space software engineering including requirements definition, design, production, verification and validation, and transfer, operations and maintenance.The scope of this Standard is the software developed as part of a space project, i.e. "Space system product software". It is not intended to cover software developments out of scope with the system of space standards. An example is the development of commercial software packages, where software is developed for a (large) volume market and not just for a single customer, and the main requirement analysis consists of market analysis, combined with a marketing strategy.Other classes of software products not covered are: management information systems (e.g. finance, planning), technical information systems (e.g. CAD/CAM, analysis packages) and supporting software products for documentation systems, database systems, spread­sheets. These usually result from the procurement or adaptation of existing commercial products, and not part of the space system development. Such software products are, however, often part of a supporting infrastructure for space systems.When viewed from the perspective of a specific project context, the requirements defined in this Standard should be tailored to match the genuine requirements of a particular profile and circumstances of a project.