Newton publishes his Mathematical Principles of Natural Philosophy.

The pyramid of Djoser is completed at Saqqara, Egypt.

Charles Babbage describes the Analytical Engine.

The Zuse Z3 is completed in Berlin, Germany.

The first NATO Conference on Software Engineering is held in Garmisch, Germany.

That of the domain which serves the synchronization and communication of cooperating sequences of activities.

Something that can be done to one or more entities, e.g. opening an account for a person.

That of the domain which will, in a software design, best be represented by (global or member) functions.

A type of "thing" in the domain that usually has attributes.

An instance in time when an action starts or ends, e.g. the movie-goer has just decided on the movie to watch.

That of the domain which will, in a software design, best be represented by instances of classes.

A sequence of several events and actions (possibly seen together with another such sequence of events and actions).

That of the domain which will, in a software design, best be represented by threads or processes.

In the domain of coastal conservationism, "nest discovery" has been abstracted as "the moment when a conservationist has just seen and identified a nest in his/her vicinity". What is "nest discovery" best classified as?

In the domain of coastal conservationism, a "nest" has been abstracted as "a structure animals build to hold their eggs and/or offspring for breeding and protection while they mature". What is "nest" best classified as?

In the domain of coastal conservationism, "egg counting" has been abstracted (in a more detailed view) as "the process of opening the nest, so its content can be observed, followed by the measuring, weighing, counting, etc. of each individual egg, followed by a careful replacement of the eggs, followed by covering the eggs with the material with which they were initially covered". What is this notion of "egg counting" best classified as?

In the domain of coastal conservationism, "egg counting" has been abstracted as "determining the number of eggs in a given nest at a given instance in time". What is "egg counting" best classified as?