Leisure Life E-Commerce Bookstore

LEISURE LIFE
Presented By :
Sanzida Akter
Sumaita Hussein
Online Bookstore

Definition :
 It is an online book shopping site.
 By which user can put details of books and user can search it, can be a member of
this site, buy books .
 User can view online book detail from anywhere through internet and purchase it .

Advantages of buying book online :
 There are various factors which influence a person’s online experience.
 Huge variety at one place.
 Easy to operate website design and hassle-free shopping.
 Books are properly categorized which reduces time and effort.
 Reviews give you an idea about which books are worth reading.
 Used books will be exchanged between users which saves more money.
 Another main factor is that it reduces the need of going to a physical store or a
book shop which requires time investment as you have to walk through various
sections and read the synopsis or the blurb.

Objectives :
 The main objectives of this project are :
 User friendly navigations.
 Maximize search options-
 1.by author’s name
 2.by book’s title
 3.by subject
 Help user by providing contents of books for reading.
 User Interaction.

 https://www.rokomari.com/book
 http://www.uofastore.com
 https://www.brown.edu/campus-
life/support/bookstore/featured-recommended
 http://www.harvard.com/shelves/used_books/
 http://www.uwbookstore.com/home.aspx
 http://papertree.com.bd/cart/

Features We Like In Benchmark
Websites

Leisure Life E-Commerce Bookstore

Modules :
 Home
 Books
 My Account
 Shopping Cart
 About

Books :
 Browse our shelves
 New Books
 Used Books
 Reviews

My Account :
 Sign Up
 Sign In

Shopping Cart :
 No. of items
 List of Books with price
 Total Amount
 Payments
 Remove from cart

SWOT ANALYSIS
Strengths :
 Use of Internet as a Storefront for Books services.
 Customer Convenience.
 Less Investment & fewer workforces for starting the venture.
 Target market.
 Minimum physical assets & less overhead charges on warehouses.
 Cost effectiveness to the customers.
 Post sales service of informing customers about new products & new auctions .

SWOT Analysis :
Weakness :
 Supply of Books out of stock.
 Dependent on external delivery services of courier services.
 Need Constant maintenance of website.

SWOT Analysis :
Opportunities :
 Online Bookstore.
 Just a click away.
 To develop relationship with Publishers to offer exclusive editions..
 Collaborations with public sectors to provide rare & antique books.

SWOT Analysis :
Threats :
 Local Bookshop vendors.
 Price competition/war.
 Increase in the Transportation costs by the courier company.
 Low consumer confidence to buy using online systems.
 Monopoly in Online business held by some players.

Design of The Webpages via Mockups

Context Diagram
The Context Diagram shows the system under consideration as a single high-level
process and then shows the relationship that the system has with other external
entities.
 It has 3 main components.
 Processes (circle)
 External Entities (rectangle)
 Data Flows (curved or straight line with arrowhead indicating flow direction

Creating Context Diagram Rules
a. Start by placing a single process symbol in the center of the page. The symbol
represents the entire information system, and you identify it as process 0.
b. Next, place the external entities around the perimeter of the page, and use data flows
to connect the entities to the central process.
c. Do not show any data stores in a context diagram because data stores are internal to
the system.
d. Place the external entities around the central process and label them.
e. Create labeled input and output data flows between the external entities and the
central system.

Data Flow Diagram
A Data-Flow Diagram (DFD) is a graphical visualization of the movement of data
through an information system.
 A DFD is process centric and depicts 4 main components.
 Processes (circle)
 External Entities (rectangle)
 Data Stores (two horizontals, parallel lines or sometimes and
ellipse)
 Data Flows (curved or straight line with arrowhead indicating
flow direction)

DFD Diagram Symbol Functions
Functions of each component:
 Process: An activity or function performed for a specific business reason.
 Data flow: A single piece of data or a logical collection of data
 Always starts or ends at a process
 Data store: A collection of data that is stored in some way
 Data flowing out is retrieved from the data store
 Data flowing in updates or is added to the data store
 External entity: A person, organization, or system that is external to the system
but interacts with it.

Data Flow Diagram Rules
 Each process must have a minimum of one data flow going into it and one data flow
leaving it.
 Each data store must have at least one data flow going into it and one data flow
leaving it.
 A data flow out of a process should have some relevance to one or more of the data
flows into a process.
 Data stored in a system must go through a process.
 Filing systems within an organisation cannot logically communicate with one
another unless there is a process involved.
 All processes in DFD must be linked to either another process or a data store.

USE CASE DIAGRAM
Use case diagrams describe what a system does from the standpoint of an external
observer. Or A use case diagram is a collection of actors, use cases, and their
communications. The emphasis is on what a system does rather than how.
Use case diagrams are closely connected to scenarios. A scenario is an example of what
happens when someone interacts with the system.
 The Symbols are:
 Use Case Actor Communications

Use case Diagram Functions
 A use case is a summary of scenarios for a single task or goal. Use cases are ovals.
 An actor is who or what initiates the events involved in that task. Actors are simply
roles that people or objects play. Actors are stick figures.
 Communications are lines that link actors to use cases.

Use Case Diagram Descriptive form
 Components required:
 Use case number and name
 Primary Actor
 Stakeholders and Interests
 Preconditions
 Success Scenario
 Alternate Scenario
 Post-conditions

Use Case : Buy Books
 Primary Actor: Customer
 Stakeholders and Interests:
Admin: Wants to sell books with maximum profit. Wants to increase their
revenue and sales and have more customers.
Customer: Wants to purchase books at a cheaper price with fast service and
minimal effort. Wants receipt/invoice if future return of product is necessary.
Supplier: Wants to supply books to admin with maximum profit.
Government Tax Agencies: Wants to collect tax from every sale.
 Preconditions: The website must be authenticated; security/piracy of customers
have to be maintained.

Successful Scenario
1.Customer could easily register.
2.Customer finds their required books.
3.Customer can successfully add the products to the cart.
4.Customer gives in their address and selects the payment method.
5.Customer successfully completes their purchase and receives a purchase invoice on
their email.
6.Customer receives their books/product successfully.
7. Customer details along with their purchase details get stored in the database.

Alternative Scenario
System fails:
1.Customer can’t register or server too busy to load.
2.Customer can’t find the required books.
3.Customer can’t add the products to the cart.
4.Customer gives in their fake address or information and doesn’t provide the correct
payment method.
5.Customer can’t complete their purchase and doesn’t receive a purchase invoice on their
email.
6.Customer don’t receive their books/product.
7. Customer details along with their purchase details doesn’t get stored in the database
due to failed system or busy server.

Post Conditions
Transaction and Customer Details is saved in Database. Tax is correctly calculated. Accounting and
inventory updated. Invoice is generated. Customer Receives their Product

Activity Diagram
An activity diagram visually presents a series of actions or flow of control in a system
similar to a flowchart or a data flow diagram. Activity diagrams are often used in
business process modeling. They can also describe the steps in a use case diagram.
Activities modeled can be sequential and concurrent. In both cases an activity diagram
will have a beginning and an end.

Activity Diagram Rules
 rounded rectangles represent actions;
 diamonds represent decisions;
 bars represent the start (split) or end (join) of concurrent activities;
 a black circle represents the start (initial state) of the workflow;
 an encircled black circle represents the end (final state).

Class Diagram
The class diagram is a static diagram. It represents the static view of an
application.
 The class diagram describes the attributes and operations of a class and also the
constraints imposed on the system. The class diagrams are widely used in the
modelling of object oriented systems because they are the only UML diagrams
which can be mapped directly with object oriented languages.
 The class diagram shows a collection of classes, interfaces, associations,
collaborations and constraints. It is also known as a structural diagram.
 The purpose of the class diagram is to model the static view of an application.

ER Diagram
An entity relationship diagram (ERD) shows the relationships of entity sets stored in a
database. An entity in this context is a component of data. In other words, ER
diagrams illustrate the logical structure of databases.

ER Diagram Rules
 Identify the entities : The first step in making an ERD is to identify all of the
entities you will use. Draw a rectangle for each entity you can think of on your
page. Keep them spaced out a bit.
 Identify relationships : Look at two entities, are they related? If so draw a solid
line connecting the two entities.
 Describe the relationship : How are the entities related? Draw an action diamond
between the two entities on the line you just added.
 Add attributes. : Any key attributes of entities should be added using oval-shaped
symbols.
 Complete the diagram : Continue to connect the entities with lines, and adding
diamonds to describe each relationship until all relationships have been described.

Swimlane Diagram
 A swim lane (or swimlane diagram) is a visual element used in process
flow diagrams, or flowcharts, that visually distinguishes job sharing and
responsibilities for sub-processes of a business process. Swim lanes may be
arranged either horizontally or vertically.

Swimlane Diagram Rules
 Construction - A swimlane diagram incorporates standard symbols to display
information .Each time a new actor is identified, a new column or row should be added.
A circle signifies the starting and ending of an event in the process (also known as initial
state and final state).
 A rectangle (in BPMN or UML diagrams, these may be rounded)[8] represents an activity in
the process.
 A diamond represents a decision that must be made.
 Arrows indicate the flow of the process.
 A cylinder represents stored data.
 Verbiage –
 Initial state and final state (circles) should state what is being performed.[9]
 The name of the action (rectangle) should describe its purpose. In activity diagrams, these
generally should start with a verb.

Class-responsibility-collaboration(CRC)
 CRC cards are usually created from index cards. Members of a brainstorming
session will write up one CRC card for each relevant class/object of their design.
The card is partitioned into three areas:
 On top of the card, the class name
 On the left, the responsibilities of the class
 On the right, collaborators (other classes) with which this class interacts to fulfill
its responsibilities

CRC Rules
 Find classes. Finding classes is fundamentally an analysis task because it deals
with identifying the building blocks for your application.
 Find responsibilities. You should ask yourself what a class does as well as what
information you wish to maintain about it. You will often identify a responsibility
for a class to fulfill a collaboration with another class.
 Define collaborators. A class often does not have sufficient information to fulfill
its responsibilities. Therefore, it must collaborate (work) with other classes to get
the job done. Collaboration will be in one of two forms: a request for information
or a request to perform a task.
 Move the cards around. To improve everyone's understanding of the system, the
cards should be placed on the table in an intelligent manner. Two cards that
collaborate with one another should be placed close together on the table

Sequence Diagram
 Sequence diagrams describe interactions among classes in terms of an
exchange of messages over time. They're also called event diagrams.
 A sequence diagram is a good way to visualize and validate various runtime
scenarios. These can help to predict how a system will behave and to discover
responsibilities a class may need to have in the process of modeling a new
system.

 Class Roles or Participants
Class roles describe the way an object will behave in context.
 Activation or Execution Occurrence
Activation boxes represent the time an object needs to complete a task.
Sequence Diagram Components

Sequence Diagram Components
Messages
Messages are arrows that represent
communication between objects.
-Lifelines
Lifelines are vertical dashed lines that indicate the object's
presence over time.

Types of Messages in Sequence Diagrams
 Synchronous Message
 Asynchronous Message
 Reply or Return Message
 Self Message
 Create Message
 Delete Message
 Found Message
 Lost Message

State Diagram
 A state diagram is a type of diagram which describes the
behavior of systems.
 State diagrams are used to give an abstract description of
the behavior of a system. This behavior is analyzed and
represented as a series of events that can occur in one or
more possible states.

Symbol description
 State defines current condition of an event or activity. State diagram is ofen used
to describe state changes triggered by events.
 Start state symbol signals the first step of a process.
 End state symbol stands for the result of a process.

Symbol description
 Transition takes operation from one state to another and represents the response to a
particular event. A single transition comes out of each state or activity, connecting it to
the next state or activity.
 You also have Decision, History and Constraint in the UML model element.

Website Link
https://leisurelife.000webhostapp.com

Leisure Life E-Commerce Bookstore

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Editor's Notes