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SD 3: SW/HW Requirements Analysis  

  SE3 - SW-/HW-Anforderungsanalyse

  • Product Flow
  • Handling
  • Roles
  • Sub-activities
  • Tools Requirements
  • External Norms
  • Links to the V-Model Mailinglist
  • Product Flow

    From Product to Methods Tool Req. Ext. Norms
    Activity State Chapter Title Activity State
    SD1 accepted All User Requirements - -      
    SD2 accepted All System Architecture - -    
    SD2 being proc. Existing Interface Description - -    
    SD2 being proc. Existing Operational Information:
    User Manual
    Diagnosis Manual
    Operator Manual
    Other Application Information
    being proc.    
    SD2 being proc. Existing Technical Requirements SD4-SW
    submitted COM (2)
    CFM (1)
    CRC (2)
    DIAL (4)
    DTAB (8)
    ELH (7)
    ER (6)
    FNET (5)
    IAM (2)
    SBM/ (5)
    STM (9)
    STMO (3)

    + "Chapter" are extra columns from the original printed version of GD 250


    Figure 4.3

    Figure 4.4: SD3 - SW/HW Requirements Analysis

    Within the scope of activity SD3 - SW/HW Requirements Analysis, the Technical Requirements and the Operational Information (User Manual, Diagnosis Manual, Operator Manual, Other Application Information) are upgraded with regard to one Software Unit or one HW Unit. The User Requirements, the System Architecture and the previously derived Technical Requirements are the starting point of this activity. On this basis the general requirements, the requirements for interfaces, functionality, quality characteristics, SW development environment and SWMM environment have to be analyzed and defined.

    The Operational Information generated on system level must be completed by SW/HW-related information. Based on the Technical Requirements all information must be obtained that are required for the user documentation.


    Role Participation
    SD Supervisor cooperating (SD3.5)
    System Designer responsible (SD3.1, SD3.2, SD3.3, SD3.4, SD3.5)
    Technical Author cooperating (SD3.5)


    SD3.1 - Definition of General Requirements from SW/HW Unit Point of View
    SD3.2 - Specification of Requirements for External Interfaces of SW/HW Unit
    SD3.3 - Definition of Requirements for the Functionality
    SD3.4 - Definition of Requirements for the Quality of the SW/HS Unit
    SD3.5 - Definition of Requirements for the Development and SWMM Environment

    Tools Requirements

    Being defined

    External Norms

    Being defined

    Links to the V-Model Mailinglist

    Mail 0637 - Re: Prüf-Grundsatz (637)
    Mail 0524 - Mehrere Fragen zum V-Modell (524)
    Mail 0178 - Re: Technische Anforderungen (178)


    (1) Method CFM is to be applied for event-driven systems in case it is required for the representation of the control flow based on a high complexity.

    (2) The methods have to be applied in object-oriented developments.

    (3) Method STMO is to be applied for the dynamic system modeling in object-oriented procedures.

    (4) Method DIAL is to be applied for dialogue functions with screen masks.

    (5) Method SBM is to be applied for realtime applications or respectively distributed systems with a high level of criticality. Method FNET is to be applied for information systems.

    (6) Method ER is to be applied for information systems.

    (7) Method ELH is to be applied for information systems.

    (8) Method DTAB is to be applied for the description of complex facts and circumstances.

    (9) Method STM is to be applied if complex situations have to be considered during the run of the function or the process.

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