Why elicitation and analysis is difficult process in requirement engineering process? Explain.

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 Requirement elicitation and analysis or eliciting and understanding requirements from system stakeholders is a difficult process in requirement engineering for several reasons:-

  • Stakeholders often don't know what they want from a computer system except in the most general terms. They may find it difficult to articulate what they want the system to do, they may make unrealistic demands because they don't know what is and isn't feasible.
  • Stakeholders in a system naturally express requirements in their own terms and with implicit knowledge of their own work. Requirements engineers without experience in their customer's domain may not understand these requirements.
  • Different stakeholders with diverse requirements may express their requirements. Requirement engineers have to discover all potential sources of requirements & discover commonalities and conflicts.
  • Political factors may influence the requirements of a system. Managers may demand specific system requirements because these will allow them to increase their influence in the organization.
  • The economic & business environment in which the analysis takes place is dynamic. It inevitably changes during the analysis process. The importance of particular requirements may change. New requirements may emerge from new stakeholders who were not originally consulted.

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