A rapid IoT application and its technology nowadays allowed the needs analyse of requirements elicitation to ensure the application product developed is consistent, correctness and complete. However, improper to elicit requirements is lead the failure of Arduino and IoT development. As requirements engineer, they must know how to elicit the requirements before proceeds to software development. Therefore, this paper provides a gap of study for existing work requirements elicitation that exist in market for commercial and for research purposes. We report our findings from review and analysis of different studies. The strengths and weaknesses of the features and utility are also presented to provide further understanding of the gaps and weaknesses of each research. We conclude that these researches are still immature and need further improvements...

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