Final answer:
The process of identifying the specific version of a system program is termed system version identification, a vital step in the field of computers for ensuring compatibility and security.
Step-by-step explanation:
The process of determining the underlying version of the system program being used is best described as system version identification or software versioning. This analytical step is crucial in various fields, particularly in Computers and Technology, to ensure compatibility and security of applications and to make informed decisions about updates and maintenance.
In physics, whilst not directly related, the choice of a system is similarly a vital step to solve problems and to thoroughly understand the situation at hand. Although the principles behind these two contexts differ, each represents the importance of analytical steps in problem-solving and in depth understanding their respective fields.