Here of continuation a series of actions apt is listed to resolve the problem of the obsolescences: some rispecchiano the reactive strategy, others that one proattiva3.
It is necessary to emphasize that their implementazione does not preview absolutely one mutual exclusion: in some cases, in fact, it can turn out more effective to put a action in existence plan that it previews a mix of some of they.

• Sources alternatives (aftermarket manufacturer/suppliers): the aftermarket manufacturer they are companies that they have find the production lines and the relative rights from original equipment manufacturer (the OEM) to the aim while still alive to maintain the production of an otherwise obsolete item. Aftermarket suppliers the cone instead obsolete component companies that they choose to acquire and to hold to warehouse and rivender them to an increased price to who of manifest the necessity.
• Substitution of parts (Replacement parts): this alternative, typically reactive, demands the analysis of the characteristics of the obsolete item and the search of a similar device in FFF (Form, Fit, Function) that you do not degrade the performances of the system because of the differences. One can capitare that they find a member perfectly equal, or that has need of some adaptation.
• Emulazione: it is the process through which it is attempted to reproduce a by now obsolete member, maintaining of the qualities in terms Form, Fit, Function, but using the technology available to the state of the art. Also in this case it is spoken about a corrective action of reactive stamp.
• Life of Type (LOT) Buy, also said Lifetime Buy or Last Buy: it previews the purchase of a sufficient amount of the obsolete item in order to already satisfy the productive plan and the support of the systems in operating phase until the end of their cycle of life. To preview the future question of the device in issue is not always one simple what: usually it is based on one esteem of the question and the regarding data the reliability and mortality of the member. An other problematic aspect of the action of last buy is along time of storing, is from the point of view of immobilization of understood them, is for the shelf life of the items. In any case, the resource to such action concurs to avoid the problems of IPR (Intellectual Property Rights) especially for complex members, modules or sottoassiemi. In last analysis, a last buy it is advised in the following cases:
  • When it is famous, thanks to a notification of the producer, or are succeeded to preview the obsolescence date;
  • When the end of the cycle of life of the system to support is not too much far in the time.
  The lifetime buy it is an action numbered between those proattive. Between the actions of last buy, that one of Bridge Buy can be included also with which a purchase of a sufficient amount of item comes true itself in order to support system and productive plan until one action of redesign.
• Redesign: often, rather than to carry out lifetime buy or a substitution of parts FFF, that they need however an adaptive effort, is not preferred to redesign a part, more or less extended of the system, without but altering its functionalities.
• Technological insertion: action with which it is attempted to face the express development of the technology to the aim to place remedy to the inevitable to rebel of the obsolescence. The fundamental element is the introduction of one new technology in a preesistente plan, so as to to improve, at the same time to the resolution problem of DMSMS, the functionalities of the system. If implemented in effective way, the technological insertion and the main proattiva action in order to contrast the obsolescence. Often, beyond to actions of this type in order placing remedy to the imminence of DMSMS, actions of upgrades they come systematically programmed in the course of the cycle of life of the system: it is the case as an example of a midlife-upgrade.
• Reverse Engineering: process for means of which an exact retort of the item is come true originates them, through the study of the effective composition of this last one and I use it of technical data.
• Cannibalizzazione (Reclametion): I use of other analogous systems, and not more economically repairable, to that supporting like source of replacement parts in order to satisfy the necessity of the obsolete members.

• The substitution of parts with other similar not perfectly FFF (Replacement parts);
• Life of type buy;
• Bridge buy/Redesign;
• Emulazione.

Figure 4.2: Percentage with which it is rerun to more you attend solutions for the DMSMS.

• 3: DMSMS Resolution Houses Guides, Air Force Material Command DMSMS Program, 15 July 1998.
• 4: Diminishing Manufacturing Sources and Material Shortage Management Practies, GEB 1, EIA Engeneering Bulletin, 15 July 2000.
• 5: Porter G.Z. (Boeing Commercial Aircraft Company), Strategies for obsolescence management in the new mil-lennium, from the actions of the DMSMS Conference 1999.