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System Development Submodel  
SSD05 - Supporting Function Structure  

  LSE05 - Funktionsstrukturierung 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

    SD1.1 - Recording of Actual Status and Analysis

  • User Requirements.Actual Status and Current Analysis
  • 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

  • Technical Requirements.Overall Function of Element
  • SD3.3 - Definition of Requirements for the Functionality

  • Technical Requirements.Overall Function of Element
  • Method

    FCTD - Functional Decomposition

    2 Brief Characteristics

    This service unit defines the requirements for tools used to The hierarchical relationship between functions is represented in the sense of a "Consists-of" relationship.

    3 Requirements

    3.1 Requirements for Interfaces

    SSD05.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.
    SSD05.I.2 Output interface to SSD06 - Supporting Function Specification It is possible to transmit collected functions via the object management to SSD06 as reference points for the specification.
    SSD05.I.3 Output interface to SSD07 - Supporting Modeling of Information Flows It is possible to transmit collected functions via the object management without further transformation to SSD07 in order to be automatically integrated into data flow diagrams.
    The functions defined in SSD05 correspond to the processes used in the data flow diagrams.
    SSD05.I.4 Output interface to SSD08 - Supporting Modeling of Function Dynamics It is possible to transmit collected functions via the object management without further transformation to SSD08 in order to be automatically integrated into sequence models.
    The functions defined in SSD05 correspond to the functions used in the sequence models.
    SSD05.I.5 Output interface to SSD09 - Supporting Information Structuring It is possible to transmit collected functions via the object management to SSD09 as reference points for the generation of information structures.

    3.2 Requirements for the Methods Support

    SSD05.M.1 Functional Decomposition (FCTD)
    SSD05.M.1.1 Symbol Symbols are available for the representation of functions.
    SSD05.M.1.2 Tree structure In the representation of the diagram elements a tree structure is enforced.

    3.3 Requirements for Functions

    SSD05.F.1 Display options
    SSD05.F.1.1 Depth of the display It is possible to limit the depth of the display of a function tree according to the presetting.
    SSD05.F.1.2 Form of the function tree It is possible to transform the function tree into an indented or horizontal form of representation.

    3.4 Other Requirements

    SSD05.O.1 Upward compatibility It must be possible to process objects generated with an older release of the tool with the later release of that tool, without loss of information and functionality.
    SSD05.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.
    SSD05.O.3 Complexity There is no limitation of the complexity caused by the tool itself.

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