PRELIMINARY REPORT: LIMITED ANALYSIS AND COMMENTS ON DESIGN.
Added on - 30 Sep 2019
PRELIMINARY REPORT: LIMITED ANALYSIS AND COMMENTS ON DESIGN1. IS2: Full Online Shopping System1.1Structure approach to system analysis and design mainly work on processes and on logicalstructure. After that data is required for the processes. It is basically follow the top to downapproach. It has fixed specifications. It uses a list of instructions to get work completed. In thisprocess programs are divided in to various small processes. It has more function dependencies aswell as less reusability properties. Structure approach have also less flexibility in nature. Datahiding facilities is also not available in this approach.Whereas in object oriented approach all the works are mainly dependupon data. It divides the whole requirements in to object which carries the methods and datatogather. It follows the bottom to top approach. It has properties of data encapsulation as well aspolymorphism. It has more reusability and have less function dependencies properties. Here inonline shopping system design we are going to use the object oriented approach. Object orientedapproach can solve any complex program as well as having data hiding feature. Oops is morefamous than structure approach it provide facilities of dynamic binding and multi-threading as wellas objects,class etc.1.2The most general approach in SDLC is structure approach which is based upon waterfall model. Itfollow step by step process to complete the phase. In this we see that work of one phase mustcompleted before moving to another one. Planning, analysis, design and implementation are themain phase of structure approach. It uses set of diagram which repersent functionality of system ismainly termed as DFD. Whereas in object oriented approach have several phases like inception,elaboration, construction and transition. It has no logical process for SDLC . During iterartion itrepeated every phases. In this approach we uses different models to repersent the differentfunctionality of the system is also known as UML (unified modeling language). This process followmainly increamental and iterative approach for the development of the system.(Waterfall Method)
(Iterative and Incremental Model of SDLC )1.3Functional Requirements for online shopping systema) Stores the record of customers on daily basisb) Stores the records of products availablec) Stores the record of daily sell and feedback provides by the customerd) Update or stores the details of deliverable products.e) Keep the product in temporary storage which is selected by the customerNon Functional Requirements for online shopping systema) Secure access of customer confidential details.b) 24 * 7 online system availabilityc) Design of better component and architecture for flexible serviceVarious other non-functional requirements are reusability, extensibility as well as applicationcompatibility and utilization of resources.1.4(Conceptual Model )
1.5use case for the scenario Customer checking out and paying for their basket.1.6( Context Diagram )
1.7Admin Side ( 1stlevel DFD)