SD 2: System Design



		SD 2: System Design

SE2 - System-Entwurf

Contents
Product Flow
Handling
Roles
Sub-activities

Tools Requirements
External Norms
Links to the V-Model Mailinglist

Contents		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	Methods	Tool Req.	Ext. Norms
External	-	All	Product Information	-	-
PM2	accepted	All	Offer Evaluation ⁽¹⁾	-	-
PM5	accepted	All	Cost/Benefit Analysis	-	-
SD1	accepted	Existing	User Requirements	-	-
-	-	Existing	System Architecture	SD1 ⁽²⁾ , SD3 SD4-SW PM4 PM5	submitted	BA COM CRC ER FCTD IAM PRODIAG SIMU SSM
-	-	Existing	Technical Requirements	SD3	being proc.	COM CRC PRODIAG SSM
-	-	Existing	Operational Information: User Manual Diagnosis Manual Operator Manual Other Application Information	SD3	being proc.
-	-	Existing	Interface Overview	SD4-SW CM4	being proc.	COM DFM SSM
-	-	Existing	Interface Description	SD3 SD4-SW CM4	being proc.	ACC COM DVER FS IAM SSM STMO
-	-	Existing	Integration Plan	SD4-SW QA3	being proc.	BAR DTAB NPT/

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

* Setting up the System Architecture

Based on the user-level requirements and the marginal conditions (User Requirements) a solution proposal is generated for a possible technical system structure (System Architecture).⁽³⁾ The appropriate use of off-the-shelf-product must be given special attention.

This solution proposal is evaluated with the help of the feasibility studies that are based on the User Requirements and the available product information. The result of this evaluation with regard to the possible use of off-the-shelf-products has to be taken into consideration in the possibly following update of the System Architecture.

The solution proposal is refined and the allocation of User Requirements to the elements of the System Architecture is realized. Details for the Technical Requirements must be generated, as far as this is possible.

The definition of the System Architecture ends with the identification of the interfaces (system interfaces to the environment [e. g. to the user and other systems] and interfaces between elements of the System).

Each interface identified in the System Architecture must be entered into the Interface Overview and be documented in the Interface Description.

* Setting up the Integration Plan

As soon as the System Architecture is selected the specification of the system integration must be started. The integration strategy has to be defined in the Integration Plan and must explain which elements, which measures, and which resources are required for the integration of the System.

* Documentation of already recognizable Operational Information

At this point, information may already be available that is relevant for Operational Information (User Manual, Diagnosis Manual, Operator Manual, Other Application Information). Therefore, all that information should be used in the present documents that might be of interest for the user documentation.

---------- The following part is an extension of the original printed version of GD 250 -----------

Roles

Role	Participation
IT Representative	cooperating (SD2.1, SD2.3)
IT Security Representative	cooperating (SD2.3 responsible (SD2.2)
Project Leader	cooperating (SD2.1, SD2.3)
System Analyst	cooperating (SD2.3)
System Designer	responsible (SD2.1, SD2.3, SD2.4, SD2.5, SD2.6)
Technical Author	cooperating (SD2.1, SD2.6)

Mail 0595 - Re: Unterstützung der Betriebseinführung (595)
Mail 0524 - Mehrere Fragen zum V-Modell (524)
Mail 0246 - Re: Umfang von SE 1.2 bei inkrementeller Entwicklung (246)
Mail 0178 - Re: Technische Anforderungen (178)
Mail 0148 - SE 2, Systemarchitektur (149)

Notes:

(1) In case off-the-shelf products are to be used.

(2) In case a requirements controlling is to be realized on the basis of an actual architecture proposal.

(3) If necessary, several competing solution proposals can be set up and realized.

This page online • GDPA Online • Last Updated 10.Sep.2002 by C. Freericks