Answer:
Chronological
Explanation:
Chronology can be defined as an arrangement of data, items or documents in the order in which they occurred or happened (in time) such as steps, from the earliest (first) to the most recent or latest.
Simply stated, ordered events are organized in order of time or steps and this process is known as chronology.
Generally, a chronology can be used as a filing process in various areas such as schools, hospitals, hotels, and business firms to help put data (informations) in order by time or date.
In this scenario, at work, you are asked to explain the office step-by-step opening process to a new employee. Thus, the pattern of development which would be most effective to explain the process to the new employee is a chronological order.
The steps are then written in ascending order, usually from step one (1), step two (2), three, four, etc.