Product service history

A. 3. Product/service history (main markets, how many sold, use in pharmaceutical sector)... 

Product Service Experience Service experience (i.e., previous or current usage of the component) may be used to substantiate Development Assurance for previously developed hardware and for COTS components, where change is not introduced within this application. Note that in this context, this is direct product service history evidence, and not colloquial here say evidence. Data from non-airborne applications is not specifically excluded under RTCA/DO-254, although often these applications lack the necessary failure reporting data in order to be able to assess the product service experience. RTCA/DO-254 defines criteria on how to evaluate product service history. It should be noted that this is an onerous process, and many product service history cases do not have sufficient data in order to successfully evaluate product service history. Therefore, the architectural mitigation or advance verification methods must be used. 

Product service history Historical data generated by activities at the interface between the supplier and the customer and by supplier internal activities to meet the customer needs regarding the quality, reliability and safety trends of the product or service. 

Most plastic components are designed on the basis of experience, and that experience should be the first source of information. However, the exact conditions of service history are rarely known and are generally less harsh that the extremes for which the product has been designed. The materials are likely to have changed in the time between the design of a product and its successor. Past failures are important, but could have been for reasons unconnected with the material. In spite of these cautions, predictions based on experience are no more likely to be uncertain than those based on accelerated trials. 

Sodium hexamethylene-l,6-bisthiosulflde dihydrate, when added to the vulcanization system, breaks down and inserts a hexamethylene-1,6-dithiyl group within a disulfide or polysulfide crosslink. This is termed a hybrid crosslink. During extended vulcanization periods or accumulated heat history due to product service, polysulfidic-hexamethylene crosslinks shorten to produce thermally stable elastic monosulfidic crosslinks. At levels up to 2.0 phr, there is little effect on compound induction or scorch times, nor on other compound mechanical properties (Rubber Chemicals, 1998). 

The notifications about a customer interested in buying products/services include the customer s options, some infonnation about the navigation history, what product/service is selected and several suggestions. The communication session is established and the sales agent s virtual assistant provides with demo films and booklets, statistics or other information. 

Lost opportunities - This category of quality cost is impossible to quantify accurately. It refers to the rejection of a company product due to a history of poor quality and service, hence the company is not invited to bid for future contracts because of a damaged reputation. 

The number and severity of failures experienced by the equipment under study must be related to the operations of the facility. It would be inappropriate to assign the same operating histories to a continuously operating system and a system that operates intermittently. The number of hours in different operating modes (for example, 100% production versus shutdown) affect failure rate calculation and service description for taxonomy definition. 

In this method appropriate values of such time-dependent properties as the modulus are selected and substituted into the standard equations. It has been found that this approach is sufficiently accurate if the value chosen for the modulus takes into account the projected service life of the product and/or the limiting strain of the plastic, assuming that the limiting strain for the material is known. Unfortunately, this is not just a straightforward value applicable to all plastics or even to one plastic in all its applications. This type of evaluation takes into consideration the value to use as a safety factor. If no history exist a high value will be required. In time with service condition inputs, the SF can be reduced if justified. 

Plastics are no different in this respect than other materials. If steel, aluminum, and ceramics were to be made into a different complex shapes and no prior history on their behavior for that processing shape existed, a period of trial and error would be required to ensure their meeting the required measurements. If relevant processing information or experience did exist, it would be possible for these metallic (or plastic) products to meet the requirements with the first product produced. Experience on new steel shapes always took trial and error time that included different shaped high pressure hydraulic steel cylinders that failed in service when used in a new injection molding hydraulically operating machine (author s experience). 

Types of wood and their chemical resistance and physical characteristics are reviewed, including examples showing the manufacture of typical tank and pipe construction. In-service case histories are included. While this coverage takes you from the Forest to the plants making acetic acid, that is beyond the need for most users it is hoped that the reader becomes aware that this product family is the only MOC for several CPI applications and is a competitive choice over some quite exotic materials, e.g., titanium, in others. 

Provide an organogram of your company. Provide a brief history of the company, the products and services offered by the company, and the departments responsible. 

Inhalant abuse is a financial drain on society as well. Indian Health Services estimates a cost of 1.6 million to treat a young adult with a history of inhalant abuse and all its associated physical, mental, legal, occupational, and social problems. The Office of National Drug Control Policy (ONDCP) estimates that illegal drugs cost the U.S. economy 160 billion in the year 2000, an annual increase of 5.8% between 1998 and 2000. That estimate includes 14.8 billion in healthcare costs and 110.4 billion in lost productivity from drug-related illness, incarceration, and death. 

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