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.
The Certified Construction Manager (CCM) is the âgold standardâ in personnel credentials for the Construction Management profession. It is the only CM certification accredited by the American National Standards Institute (ANSI) under the International Organization for Standardizationâs ISO-17024 standard.