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Presales is a process or a set of activities/sales normally carried out before a customer is acquired, though sometimes presales also extends into the period the product or service is delivered to the customer. There are many job titles associated with presales which largely overlap in responsibilities, e.g. Sales Engineer, Solution Engineer ...
Pre-order. A pre-order is an order placed for an item that has not yet been released. The idea for pre-orders came because people found it hard to get popular items in stores because of their popularity. Companies then had the idea to allow customers to reserve their personal copy before its release, which has been a huge success.
In the music industry, pre-production is a process whereby a recording artist spends time creating and refining their musical ideas. The artist thus produces a song's demo recording, or rough draft, in order to establish the song's creative premise. This reduces the time and money spent in expensive studios. The goal is to enter into the major ...
Equivalence classes (sets of elements such that x R y and y R x) are shown together as a single node. The relation on equivalence classes is a partial order. In mathematics, especially in order theory, a preorder or quasiorder is a binary relation that is reflexive and transitive. The name preorder is meant to suggest that preorders are almost ...
The lexicographical order is one way of formalizing word order given the order of the underlying symbols. The formal notion starts with a finite set A, often called the alphabet, which is totally ordered. That is, for any two symbols a and b in A that are not the same symbol, either a < b or b < a. The words of A are the finite sequences of ...
Preemption (computing) In computing, preemption is the act of temporarily interrupting an executing task, with the intention of resuming it at a later time. This interrupt is done by an external scheduler with no assistance or cooperation from the task. [1]: 153 This preemptive scheduler usually runs in the most privileged protection ring ...
Purchase order request. A purchase order request or purchase requisition is a request sent internally within a company to obtain purchased goods and services, including stock. The request is a document which tells the purchasing department or manager exactly what items and services are requested, the quantity, source and associated costs.
The reverse side of the Great Seal of the United States (1776). The Latin phrase novus ordo seclorum, appearing on the reverse side of the Great Seal since 1782 and on the back of the U.S. one-dollar bill since 1935, translates to "New Order of the Ages", [1] and alludes to the beginning of an era where the United States of America is an independent nation-state; conspiracy theorists claim ...