href="#image2_5936e678ceb54c070058f979_jpg.jpeg"/>Figure 2. 2. Types of systems service the goods
We will explain the figure
System with obvious losses
System, in which if the goods is not sold, then it is removed from the market, is called system with obvious losses
System of service with the expectation
System, in which if the goods is not sold, then it will stand is queued for implementation is called system of service with the expectasion
2.2.2. The types of input flows
The flow of goods is a sequence of goods incoming through any interval or at through any moments of time.
Deterministic flow of events – the order in which events arrive in a certain, strictly fixed non-random moments or in certain, strictly fixed, non-random intervals. For example, sale of products from the conveyor.
The random flow of events differs from the deterministic, those and only, that moments of supply of goods and intervals between deliveries are random variables, but not strictly fixed values. Deterministic flow is a special case of random flows and is rare in practice. Strictly speaking, even in such streams often occurs a random event.
The flow of events can be determined by one or more of the three equivalent ways:
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