The word process denotes the organized movement by which states of existence change over time.

The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. defines a process as:

NOUN : 1. A series of actions, changes, or functions bringing about a result: “the process of digestion; the process of obtaining a driver's license.” 2. A series of operations performed in the making or treatment of a product: “a manufacturing process; leather dyed during the tanning process.” 3. Progress; passage: “the process of time; events now in process.”

8. Computer Science a. A running software program or other computing operation. b. A part of a running software program or other computing operation that does a single task.

A process can be described as a series or sequence of events that correlate to changes in the state of existence of a particular area of matter and/or energy over a linear and irreversible interval of time.

Suppose we designate an area of matter and energy and determine that it consists of several interactive, interconnected units. Let's say we want to observe and describe the behavior of this area over an interval of time by describing how the units interact and change over this interval. The state of all the units changes over an interval of time, or some units may not change state over a period of time while others do. Within the system, different process may occur according to different constraints. For instance, lets say our designated area of matter and energy resembles a non-uniform meshwork of interconnected wires. Each point of intersection is a node. one electrical current X could pulse through node every five econds, while an electrical current Y may pulse through a node every two seconds and process Z may cycle every 0.5 seconds with a current of 20 watts. If these two processes use the same physical structures (at the same time??) then **.

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