6 Part 6: V-Modell Reference Activities

6.3 Activities

6.3.12 Logistic Conception

6.3.12.2 Preparing Logistic Support Concept

Purpose

On the basis of the »Logistic Support Specification, the logistic support concept shall be developed iteratively. Logistic support and the logistic elements shall be designed and represented. Major influencing factors will be the expected life cycle costs and the impact on system availability. The establishment of logistic supportability, the clearance of the system for service use and the »Disposal of the system shall be planned.

Logistic support will be planned in the activity »Planning Project of the »Process Module »Project Management.

6.3.12.2.1 Defining Directives and General Conditions

The requirements and framework conditions, in particular the logistic outline concept, shall be prepared together with the acquirer. If it is not possible to prepare concrete information, assumptions shall be made that will make sense for the system to be delivered or that can be derived from already existing similar systems.

6.3.12.2.2 Analyzing System Architecture

The architecture of the system shall be analyzed. For each element of the architecture logistically relevant data, such as part number (identification number, order number) and reliability (see »Logistic Calculations and Analyses), shall be obtained and prepared so that they will be clearly arranged.

6.3.12.2.3 Developing, Evaluating and Selecting Alternatives

Several alternatives for logistic support shall be developed and presented. For each alternative logistic elements shall be determined. Then the alternatives that were developed shall be compared with regard to how they meet the requirements, in particular concerning the expected system availability and the life cycle costs. These indicators shall be determined for each alternative on the basis of identical framework conditions (which frequently will be assumptions) and shall be presented explicitly. The selection of an alternative will be made in close coordination with the acquirer, since this decision will influence the availability and the life cycle costs.

6.3.12.2.4 Preparing Logistic Support Concept

The starting point will be the selected alternative. Logistic support shall be developed on the basis of the demand for support and the logistic resources required for this purpose. Major factors in this context will be the interfaces of the system to the operating environment, the interplay between the logistic resources and the organizational conditions at the location of the acquirer.

The logistic support documentation shall be described together with the other logistic resources (such as standard/special tooling, measuring and test equipment, training equipment, spare parts) that exist or will have to be procured or prepared.

Depending on the logistic framework concept that is taken as a basis for the system, further support services may be necessary that will go beyond service use, maintenance and repair and additional system maintenance activities. Those services shall be determined and also presented.

6.3.12.2.5 Describing Interaction of Logistic Resources

In addition to the general outline of logistic support, a summary overview of the interfaces shall be prepared in which the interaction between the system, the »Enabling System and the logistic elements will be described, taking into account the following connections:

• Internal connections between the logistic elements
• Interfaces between the logistic resources that emerge as enabling systems
• Interfaces with the system
• External interfaces of the system, the enabling systems and the logistic elements to elements in its environment that will be logistically relevant (for example materiel management system, transport system, logistic facility).

Logistic requirements, such as availability, can be met only when these elements will interact. Regulations concerning organizational and technical measures for maintenance and repair and system maintenance during operations shall be described and coordinated with the acquirer.

6.3.12.2.6 Establishing Logistic Supportability and Transfer to In-Service Use

The establishment of logistic supportability and the clearance for service use shall be planned and presented. They will be carried out in close coordination with the acquirer, since the acquirer also will have to provide services. Those services may include the following:

• Providing infrastructure for the integration of logistic resources
• Providing logistic resources that are already available at the acquirer
• Providing personnel for operation, maintenance/repair and spare parts supply for training on the system
• Providing personnel for operation, maintenance/repair and spare parts supply for conducting operations or service trials (operational testing)

The establishment of logistic supportability and the clearance for service use will be planned in the activity »Planning Project of the »Process Module »Project Management.

6.3.12.2.7 Preparing Disposal

»Disposal will include decommissioning (for a return to service) and final disposal of the system.

The conceptual preparation of the decommissioning of a system has to be made near the time the system will be prepared, because this will be the only time the technical knowledge will be on hand. If for a system, which has been in service use for 30 years, decommissioning is prepared just when the system is decommissioned, this may mean a great expense, because details of the technology and material used will no longer known.

The conceptual preparation of the disposal also shall be made near the time the system is prepared. Details of harmful substances will be analyzed during development and form the best basis for the preparation of disposal. In some cases the disposal will also influence the design of the system, because in case there will be an obligation to take back a specific substance, disposal may become expensive for the manufacturer. Therefore the manufacturer will select a design of his system whose disposal is easier. Materials whose disposal will be difficult or that will be ecologically harmful shall be documented.