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System Development Submodel  
SSD23 - Supporting Subsystem Modeling  

  LSE23 - Subsystemmodellierung unterstützen

Contents  
  • 1 Allocation to V-Model and Methods Allocation
  • 2 Brief Characteristics
  • 3 Requirements
  •       3.1 Requirements for Interfaces
  •       3.2 Requirements for the Methods Support
  •       3.3 Requirements for Functions
  •       3.4 Other Requirements
  • 1 Allocation to V-Model and Methods Allocation

    V-Model

    SD1.2 - Description of Application System

  • User Requirements.Preliminary System Description
  • SD1.5 - User-Level System Structure

  • User Requirements.Description of the Functionality
  • SD2.1 - Technical System Design

  • System Architecture.Representation of the Technical System Architecture
  • System Architecture.Solution Proposals
  • Technical Requirements.Technical Requirements for the Interfaces
  • Interface Overview.System-Internal Interfaces
  • SD2.5 - Interface Description

  • Interface Description.Description of the Interfaces
  • SD4.1 - SW Architecture Design

  • SW Architecture.Solution Proposals
  • SW Architecture.Modularization/Database Design
  • SW Architecture.Interfaces
  • Interface Overview.System-Internal Interfaces
  • Method

    SSM - Subsystem Modeling

    2 Brief Characteristics

    This service unit defines the requirements for tools used to support the object-oriented method SSM - Subsystem Modeling.

    3 Requirements

    3.1 Requirements for Interfaces

    SSD23.I.1 Granularity The exchange of control parameters with SWFM01 - Workflow Management is possible for individual closed function packages of the tool by means of a disclosed, documented interface.
    SSD23.I.2 Input Interface to SSD22 - Supporting Class/Object Modeling It is possible to access information about the class/object structure defined with SSD22 via the object management.
    SSD23.I.3 Input Interface to SSD24 - Supporting Module Diagrams It is possible to access information about the physical system structure defined with SSD24 via the object management.
    SSD23.I.4 Input Interface to SSD29 - Formal Specification It is possible to access information about specifications defined with SSD29 via the object management.
    SSD23.I.5 Input Interface to SSD30 - Formal Verification It is possible to access information about verifications realized with SSD30 via the object management.
    SSD23.I.6 Input Interface to SSD31 - Analysis of Covert Channels It is possible to access information about the analysis of covert channels realized with SSD31 via the object management.

    3.2 Requirements for the Methods Support

    SSD23.M.1 SSM - Subsystem Modeling
    SSD23.M.1.1 Symbols
    SSD23.M.1.1.1 Subsystems Symbols are available for the representation of subsystems.
    SSD23.M.1.1.2 Relationships Symbols are available for the representation of relationships between subsystems.
    SSD23.M.1.2 Names It is possible to allocate identifying names for subsystems and relationships between subsystems.
    SSD23.M.1.3 Additional descriptions It is possible to specify subsystems and relations between subsystems in more detail by additional text descriptions.
    SSD23.M.1.4 Links with Class/Object Information It is possible to link subsystems with class and object information.
    SSD23.M.1.5 Linking Class/Object Information It is possible to link class/object information from various systems with each other.
    SSD23.M.1.6 Hierarchical decomposition It is possible to decompose subsystems hierarchically into subsystems.
    SSD23.M.1.7 Navigation
    SSD23.M.1.7.1 Improved level It is possible to navigate from a subsystem diagram to a subsystem diagram on an improved level.
    SSD23.M.1.7.2 Next higher level It is possible to navigate from a subsystem diagram to a subsystem diagram of the next higher level.
    SSD23.M.1.8 Subsystem diagrams It is possible to distribute the representation of subsystems and their relations to several diagrams.

    3.3 Requirements for Functions

    none

    3.4 Other Requirements

    SSD23.O.1 Upward Compatibility It must be possible to process objects that were generated with an older release of the tool with the later release of that tool, without loss of information and functionality.
    SSD23.O.2 Procedural Command Language The tool has a procedural command language that can be applied by the user to generate and run macros or procedures.
    SSD23.O.3 Complexity There is no limitation of the complexity caused by the tool itself.

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