Basically phase is an angle of line joining the origin and the any point on the wave with $x$ axis of our reference frame and the word phase is defined for the single wave function. But the phase difference is defined for two waves.
To become a Certified Construction Manager (CCM), you must have a requisite amount of experience and/or education. ONE of the following: An undergraduate (4-year BA/BS level) or graduate qualifying degree. A 2-year undergraduate qualifying degree (AA/AS level) AND 4 years experience in general design/construction.
Construction Manager Education. It is becoming increasingly important for construction managers to have a bachelorâs degree in construction science, construction management, architecture, or engineering. As construction processes become more complex, employers are placing greater importance on specialized education.