Batch crawl and jump (BCJ) sequential sampling technique: This proposed batch crawl and jump (BCJ) sequential sampling methodology follows from batch sequential sampling procedure and for convenience of understanding is illustrated below, Figure 5.2.

Figure 5.2: Batch crawl and jump (BCJ) sequential sampling technique

The basic notion of this procedure differs from that of batch sequential sampling procedure due to the fact, that for each individual batch we first proceed purely sequentially and then literary jump after a certain number of stages to estimate the values of . In order to explain the scheme of sampling, one first needs to specify , and k, where i = 1, 2,….., k. Here  is the number of batches, which is fixed at the beginning of the experiment depending on the experimenter's choice of the sampling scheme. Now  are the percentages of the total actual sample size, D, which is unknown and which one needs to estimate. As for the values of , they are also specified before the experiment.