Robustness and applications of the developed model - Iaccarino Thesis

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Chapter 7 - a model developed in a company of the production field and maintenance radar.

7.1.8 Robustness and applications of the developed model.

For the stocastica nature of the input relati you to the obsolescence, the developed model is subject to one sure uncertainty.
The made hypotheses to mount, therefore, are times to reduce, in the limits of the possible one, the possibilities of substantial errors in turn out to you: it has been assumed, in fact, like described in the Par.7.1.2, of posizionare the participation moment, for the resolution of the members who will go in obsolescence between much time, to half of the marked interval of obsolescence from the tool trades them CAPS Expert©.
Moreover it has been previewed a monitoring activity, to lead every other year, to the aim to control that the made projections correspond to the real course of the facts, and, in scostamento case, to correct the strategy so as to to diminish of the effects; the costs of this type of activity, like already specified, have been included in the resolution costs.
As far as the uncertainty tied to the prices of the members in the time, as it has been made in the Par.7.1.6, it has been believed to use the pointer

CostiLB
------------
CostiRD
like decisional instrument: when this relationship, in fact, is approximately 100% has been believed to choose the redesign punctual like resolutive action.
The range within which to make this modification, depends on the sensibility and the experience of the utilizzatore of the model.
In the worse one of the cases, that is if all the LRU introduce costs of Last Buy and similar costs of Redesign, if, as an example, s chooses to modify the resolutive action for all the LRU that introduce a relationship CostiLB/CostiRD = (100%-25%), the worsening of the solution will be = to 25%: I say = in how much, after to have chosen the resolutive action for every LRU, must put into effect the optimization in the time.
From the point of view of the applicabilità, the developed model draft the LRU like objects composed from other objects, of which forecasts are had on the obsolescence date, obtained by means of the sale data: the logic on which it is based, therefore, does not hold in consideration the particular nature of the objects deals to you.
Projecting the speech towards other requirements, moreover, if it were succeeded to having a forecast of the date of obsolescence of the COTS, the model other constituted part could be applied also for the esteem of the costs of sopportabilità for this a complex system.

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