Stratified sampling is a method of sampling from a population in statistics. When sub-populations vary considerably, it is advantageous to sample each subpopulation (stratum) independently. Stratification is the process of grouping members of the population into relatively homogeneous subgroups before sampling.tratified sampling is a method of sampling from a population in statistics. When sub-populations vary considerably, it is advantageous to sample each subpopulation (stratum) independently. Stratification is the process of grouping members of the population into relatively homogeneous subgroups before sampling.
Hardening (computing) In computing, hardening is usually the process of securing a system by reducing its surface of vulnerability, which is larger when a system performs more functions; in principle a single-function system is more secure than a multipurpose one.
@ raulcid: I would say yes. Scope baseline clearly indicates what is to be developed and delivered (not more not less). Quality planning would say how to plan for and manage quality-QA and QC. Quality plan details out various quality processes and procedures. QA assists us in how to use and apply those processes to get the desired outcome. QC assists us in ensuring we are only delivering that outcome as mentioned in Scope Baseline (not more not less). Scope baseline would help us to focus more on the QC aspect. Hence it is very much a valid input to Quality planning.