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We have systematically selected and evaluated relevant literature to find out major areas of concern for adapting agile in the development of SCSs. In the paper, we have listed the most used Agile process models and reasons for their suitability for SCS, then we have outlined phases of the software development life cycle (SDLC) where changes are required to make an agile process suitable for the development of SCSs. Thirdly, we have elaborated on problems and other important aspects according to specific domains where agile is used for SCS. 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