System Analysis and Design

Running head: SYSTEM ANALYSIS AND DESIGN
System Analysis and Design
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SYSTEM ANALYSIS AND DESIGN1
Introduction
For conducting the requirement modelling for this assessment, the case study that is
considered for this is an online cab booking company known as QuickCabs. This cab booking
company provides customer service to book cabs and pay for the fares online. The customer
associated with the online cab booking company makes online payment for the service they take
from the company.
As a system analyst, proper business plan is to be made for developing the requirement
modelling of the system. This modelling will be used for developing the online site of
QuickCabs. The project is to be developed with the project management technologies and
methodologies that would help to complete the project successfully.
Methodologies
The SDLC approach of project development includes a process that is basically used by
software industries. This approach is used for designing the product, developing as well as
testing the software that are f high quality. The main process that SDLC provides is produce a
software of high quality that helps to meet the expectation of the customer or exceeds the
expectation of the customers (Abrahamsson et al. 2017). This approach also helps to complete
the project in time and within the estimated cost of the project. There are two types of models in
SDLC, predictive model and adaptive model. Both the models with their advantages and
disadvantages are explained in the section below:
Predictive model: This is the traditional model and is known as sequential model. This
model includes linear flow of development for the software application. This process includes a
set of finite stages that is to be completed fully before moving on the next step or process. The

SYSTEM ANALYSIS AND DESIGN2
approaches that are included in waterfall model includes requirements, design, execution, testing
as well as release of the project.
Advantages: This model is a structured model and this is very easy to follow. The
activities in this model are properly defined and includes careful planning of all the projects.
There are specific deliverables at all the stages included in the process.
Disadvantages: This approach does not all the developer to go back to the previous stages
once it has been completed. This project provides flexibility for adjusting the scope of the
project. This predictive model is more expensive compared to all other methodologies included.
Predictive model: This model is iterative model that have evolved through collaboration
between all the teams. This predictive model is a dynamic model as well as iterative model that
works in sprints and included defined duration for completing the project. This model provides
lightweight deliverables that reduces time for the software that is released (Lewis 2017). This
model also includes adaptive planning, early delivery of the project, continuous development of
the project, flexible responsiveness for the changes that are required.
Advantages: Provides software of high quality that includes many iterations for the
project. This model helps to deliver the project in least possible amount of time. This project
includes deep involvement of client and provides flexibility for completing the project. This
methodology includes high collaboration degree between the teams and between all the parties
involved in the project.
Disadvantages: This model mainly requires specialized developers to complete the
project. This project is to be maintained by experts and includes many set of skills for