Chapter the 1 - evolution of the logistics.
The three are made of the logistics described in the paragraph precede unificano and reassume in the term Integrated Logistic Support (ILS) that it begins with the planning of the acquisition of an item and continues along all its operating life.
In other words the ILS is that discipline that unifica the management of the logistic activities for the support of a system or item, any is its complexity, from beginning to end of its cycle of life.
One becomes necessary, to this point, to shortly stop the attention on the cycle of life of a whichever product: this evolutionary process, in fact, is same for any object, any is its nature, that it is devised and produced for a usefull6.
The cycle of life of a product commonly is divided in two makes that to they time is subdivided in other under phase:
- Gathering phase (Acquisition Phase), subdivided in its turn in following step:
- Preconcept: in this phase the necessities for the new system are defined. or Concept in which the possible alternatives are winnowed all in order to make forehead to the necessities characterized in the previous phase. The result of this phase is the choice of the most suitable alternative, or more of one, to subject to ulterior studies.
- Demostration/Validation in which the alternative or the alternatives characterized in the previous phase, come examined in depth in order to estimate how much and as they answer to the requirements to satisfy. The scope of this phase is to create a prototype from the ideas that has passed the previous phase, to demonstrate that this effectively works and to validate that effectively they answer to the requirements characterized in the phase of preconcept.
- Engineering and manufacturing development: in this phase a ingegneristico plan is gained that allows to realize the prototype of the previous phase so that he is reliable, manutenibile, producibile and supportable.
- Production and deployment in which the plan developed to the step is come true materially previous. Once ready, then, it comes prepared for being used from the final customer.
- Phase of use (Utilization Phase) subdivided in its turn in:
- Operation and support: to this point, the system or product begins to satisfy the necessities for which it has been realized. In order to maintain its unchanged functionalities in the time, but, necessary that it is continuously manutenuto and is supported.
- Disposal: to a sure point, new requirements come to the light, or simply it is not more convenient or possible to continue to support the old system or product; it begins therefore the phase of phase-out for the old object, but, at the same time the acquisition cycle begins for a new product: the described process fin'ora, in fact, does not have never fine, but it comes iterativamente repeated in the time.
In the light of said how much fin'ora, is interesting to see like the three is made of the logistics is decreased on the cycle of acquisition of the product. In the successive figure exactly the superimposition of these is shown two aspects of the industrial world.
Figure 1.1: It is made of the logistics applied to the cycle of life of a product/arranges.
- Notes 6: James V. Jones, Integrated Logistic Support, Mc Graw-Hill.