Hardie plank siding is a premium brand of cement board siding (also known as fiber cement board siding) produced by the James Hardie Company.ardie plank can be purchased with a wood-grain look, a plain smooth look or a stucco type finish. Hardie plank also comes in simulated cedar shingle planks.
activity duration. Period (hours, days, weeks) required to complete an activity. Activities with zero duration are called milestones.
PROJECT MANAGEMENT GLOSSARY OF TERMS PAGE 17. FALL 2007. Actual Duration The time in calendar units between the actual start date of the schedule. activity and either the data date of the project schedule if the schedule. activity is in progress or the actual finish date if the schedule activity is.