System analysis and design Article Example | Topics and Well Written Essays - 750 words

System analysis and design - Article Example On this basis, this paper focuses on analysis and critique of the functional and non-functional features of a sample information system via an account of petrol station sales management system. A water flow and entity relationship diagram used in the development of the proposed system has provided the basis of the whole analysis process (Shelly & Rosenblatt, 2012). The second phase, requirements specification, is clearly a very positive move in the strategic presentation of the system since it aided in ensuring that the right functional requirements were gathered. This information is highly fundamental in ensuring that this information system is efficient enough in performing the expected functionalities. The design process was about creation of graphical presentations of the targeted system. Implementation phase engrosses development of small independent modules of code that offered unique but related functionalities. In testing and integration, the individual modules were put together into one coherent component and then tested against the design diagrams. Lastly but certainly not the least, the operations and maintenance phase proved to be very important in the development of the Information system. Not only did this phase aid in delivering the final system but also played a huge in adding and removing features that had been spotted as erroneous (Shelly & Rosenblatt, 2012). It is vital to note that, although, the waterfall model offered a clear view and presentation of the system development process; it still delivered a considerable set of challenges. One of the most crucial challenges is that all the errors and omissions can only be rectified at the operations and maintenance phase (Shelly & Rosenblatt, 2012). For any system development process to be successful, users have to be widely involved in the whole development process. However, in this methodology (waterfall), users are only involved