Snowball sampling is a non-probability sampling technique that is used by researchers to identify potential subjects in studies where subjects are hard to locate.nowball sampling is a non-probability sampling technique that is used by researchers to identify potential subjects in studies where subjects are hard to locate.
In configuration management, a baseline is an agreed description of the attributes of a product, at a point in time, which serves as a basis for defining change. A change is a movement from this baseline state to a next state. The identification of significant changes from the baseline state is the central purpose of baseline identification.
A baseline is the key to staying on top of where your project is compared to where it should be. When you set a baseline in Project (you can set up to 11), the program takes a snapshot of schedule and cost values, which you can then use to see how current values compare to what you originally planned.