Programming And Introduction Of Software Application Report

PROGRAMMING
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INTRODUCTION
UML diagrams are type of diagrams that are used for modelling and documenting
software’s, applications etc. These diagrams help in understanding a system, its processes and
functionalities in a better manner. UML diagrams helps in understanding a system in a better
manner and if there are any kind of flaws or errors within the system then it can be understood in
a better manner. These diagrams also help the programmer to understand all the functionalities of
the system and the way in which they interact with each other. This assignment will help in
describing various kinds of UML diagrams based on a case study in which a retail store wants to
implement an online retail store for their customer’s where customers will be able to place orders
through website. This assignment will also focus on java programs which will help in
understanding inheritance concept, interaction between class methods, abstract class and
interface implementation in java.
TAKS 1
Use case diagram
Use case diagram can be defined as a simplest way of representation of system and user’s
interaction (O'Hara and Slavin, 2019). This diagram shows relationship between users and
different use cases involved. In other words, this diagram can help in identifying different types
of system users and functions used by them. Below use case diagram represent actors and use
cases of online retail store.
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Figure 1 use case diagram of online retail store
Above use case diagram consist of two main actors: first is Admin and second is a customer.
Admin has four main functions: maintenance of item details i.e. which item is available and
which is not, update items that are available for home delivery, create reports of ordered items.
Customer’s also have access to four main functionalities of the system that are: browsing of
online store, selecting items for shopping, place order of selected items and pay for them and
lastly provide feedback to online retail store about their shopping experience.
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