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.
Chartered manager for IEng and CEng members. If you're an ICE member and either a chartered engineer (CEng) or incorporated engineer (IEng), with five years or more management experience, you can use the CMI's qualified route.hartered manager for IEng and CEng members. If you're an ICE member and either a chartered engineer (CEng) or incorporated engineer (IEng), with five years or more management experience, you can use the CMI's qualified route.