Which charging mechanism could cause the price of a service to change depending on the time of day?

An organization is planning to communicate information about a new improvement initiative by providing information on the IT portal, sending emails, and holding meetings with affected groups.
Which communication principle are they applying?

Which can act as an operating model for an organization?

From the perspective of a service provider how does the digital product lifecycle start?

An organization is designing a survey to assess the needs and expectations of its staff.
What is this an example of?