“…As compared to Pressman's evolutionary model that can be applied to a real‐life situation, Scharl2 takes a scientific approach to achieve objective in quantifiable terms. He states that engineering in the context of the World Wide Web denotes a systematic, disciplined, quantifiable application of scientific knowledge (i.e., methods, tools, and technical concepts) to development, deployment, operation, and maintenance of Web information systems that meet a particular set of technical, economic, and social objectives3, 4, 5, 6. None of the models has specified risk analysis as an objective of Web‐based systems.…”