The term 'By the Book' refers to acting in a very rigid manner, according to pre-established written guidelines and regulations. It often represents a criticism implying a lack of flexibility and responsiveness within an organization.
An open operating system (OS) is a computer operating system that is designed to run on multiple hardware platforms and processors, thereby providing flexibility and portability for application software and computer data.
The term 'reschedule' refers to the rearrangement of an activity, meeting, or event to a different time or date than originally planned. This can be due to various unforeseen circumstances that make the original schedule impractical or impossible.
