sad2 - chapter4

7/30/2019 SAD2 - chapter4

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CHAPTER IV

SYSTEM DEVELOPMENT

I. SYSTEM OVERVIEW

SYSTEM PROGRAMMING LANGUAGE USED

OPERATING SYSTEM

II. SYSTEM DESIGN SPECIFICATIONS

The online system allows the users to explore the companys website which has

a variety of links that provide necessary information about the company. The homepage

contains a short background about the company and in addition to the companys short

background; users can also view the company profile where they can read a short

history of the company.

If the user does not want to be a member, he/she can still navigate the site freely.

The user can view the service request form but the system prompts the user to create

an account if he/she attempts to submit the service request form. If the user wants to

request for a service repair, he/she must create an account and login to their account.

The user must first register an account if they do not have an account yet and if

theyd wish to request for a service repair. Upon registering a new account, the users

must fill up all the related information about himself/herself where every transaction of

customers are stored in the systems database.


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They should also fill up the information in the service request form where they

can select their preferred schedule for the service repair. After that, the users must

submit the service request form and make payment. The users will wait 24 hours for

confirmation of his/her service request. The system will generate a summary of the

transaction so that the user will be able to recall what they had requested.

The administrator is the one to monitor all the user-related processes by logging-

in to the system. The admin have all the access to view, add, update and delete

customers transactions. The admin is the one to change the status of the schedule if

the users desired date and time is pend ing, approved, or reschedule.


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FUNCTIONAL DECOMPOSITION DIAGRAM

Figure 4.0

Functional Decomposition Diagram Client

Figure 4.0 shows the general and specific tasks that a user can execute in the

webpage. The user views the homepage and select which of the links he/she views

next. In the links provided are about the companys profile, contact us, and location. The

user can also view the services offered that contains the category of appliances. After

viewing the appliances, he/she gains access to the service request form. The user can

submit the service request form if he/she is already a member. Otherwise, the user

needs to register an account first.


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Figure 4.1

Functional Decomposition Diagram Administrator

Figure 4.1 shows the general and specific tasks that the administrator can

execute in the webpage. The administrator must login their username and password to

view, add, update, and delete data from the system s database. The administrator is

also the one to update the status of repair of the appliance if it is approved, pending, or

reschedule.


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III. DATABASE ENVIRONMENT (PHYSICAL DESIGN)

The systems database environment is Structured Query Language. SQL is a

special-purpose programming language designed for managing data in relational

database management systems. SQL is a database language that is used to retrieve,

insert, delete and update stored data. MySQL is the most used open source relational

database management system that runs as a server providing multi-user access to a

number of databases. MySQL also provides relevant and real time information related

to the system.

TABLES

Table 1.0

Customer Account Table

Table 1.0 shows that the customerid is the primary. The fields username and password

are used to log in to the companys website.


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Table 1.1

Registration Table

Table 1.1 shows that customerid is the primary key. The field username indicates your

preferred name when logging in to the companys website. The firstname and lastname

fields describe the full name of the customer. The gender, address, contact and email

are the fields that show some of the customers information.

Table 1.2

Schedule Table

Table 1.2 shows the customers preferred date which is the field scheduled_date and

time field named time, and it also contains 1 basic field about the appliance, the

appliance_no. The field schedule_no is the primary key in this table and customer_id is

the customers id based from the id of the customer who is logged on.


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Table 1.3

Admin Account Table

Table 1.3 shows that admin_id is the primary key. The adminusername and

adminpassword is the field that is used in order for admins to log in to the companys

website.

Table 1.4

Reserved Appliance Table

Table 1.4 shows that appliance_id is the primary key. The field customer_id is id of the

customer making the request. The appliance_type describes what appliance needs to

be repaired, the model_type is the type of model the appliance is and the field

description describes the damage of the appliance. Fields model_no, warranty_no and

serial_no describes the model, warranty and serial number of the appliance. The field

quantity describes the quantity of the appliance that needs to be repaired. The amount

field contains the price of the repair.


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Table 1.5

Appliance Table

Table 1.5 shows that the category_id is the primary key. The appliance table contains

the field category_image that the admin uploads when adding a service and the field

category_name describes the type of appliance.

Table 1.6

Model Type Table

Table 1.6 shows that model_id is the primary key. The field category_id contains the

data from the appliance tables category_id. The field model_type describes what type

of model the appliance is and the field amount describes the price of its checkup/repair.

The field model_image contains the image of the appliances model type.

Table 1.7

Receipt Details Table


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Table 1.7 shows the transaction details of the customer, the field modeofpayment

describes what kind of payment the customer choose; paypal, credit card or over the

counter. This table also shows that receipt_id is the primary key and customer_id and

schedule_id is from the table registration and schedule accordingly. The field

totalamount contains the total amount of the repair.

Table 1.8

Summary Schedule Table

Table 1.8 shows the summary of information requested by the customer and the field

summary_id is the primary key. It also contains the field schedule_id from the table

schedule, appliance_id from reservedappliance and customer_id from the table

registration. The fields date and time are also from the table schedule. The field

total_amount contains the total amount of the repair. The field service_status describes

if the customer has already paid the service and has been visited by the technician/s or

still pending.


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OBJECT DATA MODEL

What is odm? Define? Or short meaning lang.

Figure 4.2

Object Data Model

Figure 4.2 shows tables relationship with other tables using the primary o f and

foreign key of each table.


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PRESENTATION OF THE SYSTEM COMPONENTS

HOMEPAGE

Figure 4.3

Homepage

Figure 4.3 shows the homepage of the proposed online service request system

for AC Appliance Service Provider. Provided are the links for the companys profile, the

services they offered, and the contact page. As seen in the upper part of the homepage

under the companys name, the user can directly login to the webpage using his/her

username and password. If the user is not yet a member, he/she can click the link

where he/she can register an account.


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USERNAME AND PASSWORD

Figure 4.4

Login Module

Figure 4.4 shows the login page of the website. The users can enter their

username and password if they already have an account. The login page allows the

user to gain access to the websites service request form. If the user doesnt have an

account, he/she cannot gain access to the service request form. The user can click a

link to register an account if he/she wants to process a request for service repair.


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COMPANY PROFILE

Figure 4.5

Company Profile

Figure 4.5 shows the company profile of the Whirlpool Corporation. This page

shows a short description about the company and the history of the business. The user

can also read about the companys vision mission and goals provided in the next page.


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SERVICES

Figure 4.6

Services Offered

Figure 4.6 shows the different appliance categories of the Whirlpool Corporation.

These are the common appliances that are always in need of repair when they are

damaged. The user clicks the link of the appliance that they wish to have a service

repair request and the service request form will appear.


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CONTACT PAGE

Figure 4.7

Contacts Page

Figure 4.7 shows that the user views the contact person, address, contact

numbers, and email address of the company. The contact page provides the users

source of information on the company.


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REGISTRATION FORM

Figure 4.8

Registration Form

Figure 4.8 shows the information that the user needed to fill up in order to

acquire the service request form. Every data entered by the customer in the registration

form is essential for record and retrieval purposes. The user must accept the terms and

conditions before submitting the registration form.


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APPLIANCE DETAILS PAGE

Figure 4.9

Appliance Details Page

Discuss briefly


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SCHEDULE DATE AND TIME

Figure 5.0

Schedule Date and Time

Discuss briefly


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REPORTS GENERATED

Figure 5.1

Summary of Service Request

Discuss briefly


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NETWORK LAYOUT DESIGN

SYSTEM ENVIRONMENT AND ITS ESTIMATED COSTS

HARDWARE PLATFORM

HARDWARE (EXISTING)

Processor

ASUS H55M-E32 Motherboard

2GB DDR3 Memory

320GB Sata Hard Disk Drive

SAMSUNG 24x Sata DVD+/- RW

Aerocool VS-9 Casing w/ PSU

LOGITECH PS2 Keyboard

LOGITECH PS2 Optical Mouse

AVR 500W

SAMSUNG-G 17 HW173 LCD Monitor

TOTAL : FREE (EXISTING)


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SOFTWARE PLATFORM

SOFTWARE PRICE

Microsoft Windows 7 Professional P 7,000

Microsoft Office 2007 P 4,000

PHP FREE

MySQL FREE

TOTAL P 11,000

WEB HOSTING / ISP PRICE

Web Hosting P 50 per month

PLDT myDSL P 999 per month

TOTAL P 1, 049 per month

PEOPLEWARE PLATFORM

PEOPLEWARE SALARY

Technical ExpertiseThe staff of the company will betrained to operate the onlinesystem.

MaintenanceThe owner of the company willhelp in maintaining the website.

TOTAL NO COST


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TOTAL COST OF THE PROJECT

OPERATIONAL FEASIBILITY

On the Operation aspect of the project proposal, the existing manual service

request of the company is tiresome for customers and staffs. In manual based system,

customers describe so many things about the repair and their information whereas the

staff just schedules their request untimely. In the proposed system, customers will be

pleased with its hassle-free service request, checkboxes of the possible described

damage/s and choices for their preferred date and time. There will be no workforce

reduction and the gathering of data and store process will be the same as the manual

system but scheduling appointments will be more efficient as to the system will entertain

the desired number of clients only. The proposed system will be more convenient since

it will be done online and the system will make service request easier for clients.

TECHNICAL FEASIBILITY

On the Technical aspect of the project proposal, the company has the necessary

software, hardware and network resources. The service center will train some staff in

order to maintain the system. The existing hardware and software will be reliable since

the proposed system doesnt need high requirements for it to work. The online service

request system has a simple interface and it is user friendly. The employees and clients

will benefit from its efficient processing of data and scheduling.


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SCHEDULE FEASIBILITY

On the scheduled aspect of the project proposal, the management has not yet

established a concrete time table for the project because we are still on the

development stage of the proposed system and the process is still on-going. The

system must meet all the requirements given and the project manager must ensure that

all tasks must be accomplished on time.

TOTAL COST

Initial Cost:

Software P 11,000

Hardware FREE (EXISTING)

TOTAL P 11,000

Monthly Expenses:

Web Hosting / ISP P 50 per month

TOTAL P 50 per month

TOTAL COST OF THE PROJECT

Total Initial Cost P 11,000

Total Monthly Expenses P 50 per month

TOTAL P 11,050


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SYSTEM IMPLEMENTATION


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SYSTEM FLOWCHART

START

END

USER VIEWS

HOMEPAGE

SELECT

OPTIONS

VIEWHOME?

VIEW

WASHING

VIEW

SERVICES?

VIEW

COMPANY

VIEW

OVEN?

LOGOUT

REGISTRATION

LOGIN

USERS VIEW

SERVICES

USERS VIEW

COMPANY PROFILE

USERS VIEW HOME

PAGE

VIEW

AIRCON?

VIEW

MICRO-

WAVE?

ALREADY

A

MEMBER?

VIEW

REFRIGE-

RATOR?

A

A

A

A

B

USER

LOGGED

IN?B

c

C

USERS VIEW

WASHING MACHINE

USERS VIEW

MICROWAVE

USERS VIEW AIRCON

USERS VIEW

REFIRGIRATOR

USERS VIEW OVEN

A

A

A

A

A

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