Consider the sequence diagram given below and answer the following questions.         (Figure below in the image please Thankyou)   Questions    a.      List all input messages and  return values in above diagram. b.      How many actors and objects exist in above diagram. Name them. c.      Explain the functionality shown in above sequence diagram in your own words.

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Requirement Analysis

A process that determines the user expectations for a software product is called requirement analysis. In software engineering, requirement analysis is known as requirement engineering. It involves communication with end-users and stakeholders to determine whether the system or software requirements are validated, conflicts are solved, and key requirements are documented. The first activity of the Software Development Life Cycle (SDLC) is requirement analysis.