Waterfall Model in SDLC system development life Cycle this model is used to developed software according to the requirement of the Users.... in any business this model is using commonly
These PPT presentation help to understand waterfall model in SDLC. The Waterfall model is the earliest SDLC approach that was used for software development. There are five steps in the waterfall model.
The waterfall model is a sequential (non-iterative) design process, used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of conception, initiation, analysis, design, construction, testing, production/implementation and maintenance.
SDLC - Software Development Life Cycle
and Waterfall Model :
The SDLC aims to produce a high quality software that meets or exceeds customer expectations, reaches completion within times and cost estimates.
These PPT presentation help to understand waterfall model in SDLC. The Waterfall model is the earliest SDLC approach that was used for software development. There are five steps in the waterfall model.
The waterfall model is a sequential (non-iterative) design process, used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of conception, initiation, analysis, design, construction, testing, production/implementation and maintenance.
SDLC - Software Development Life Cycle
and Waterfall Model :
The SDLC aims to produce a high quality software that meets or exceeds customer expectations, reaches completion within times and cost estimates.
Learn how and what is Spiral Model. This was made during 3RD Year. From Eastern Visayas State University - Main Campus, Tacloban City, Leyte, Philippines
CREATED BY:
Aguilar, Fatima Joy
Arpon, Benedict Julius Steven
A waterfall model is a sequential design process, used in software development processes, in which progress is seen as flowing steadily downwards( like a waterfall) through the phrases of Conception, Initiation, Analysis, Design, Construction, Testing, Production/Implementation, and Maintenance.
The waterfall development model originates in the manufacturing and construction industries which are highly structured physical environments in which after-the-fact changes are prohibitively costly, if not impossible. Since no formal software development methodologies existed at the time, this hardware-oriented model was simply adapted for software development.
Learn how and what is Spiral Model. This was made during 3RD Year. From Eastern Visayas State University - Main Campus, Tacloban City, Leyte, Philippines
CREATED BY:
Aguilar, Fatima Joy
Arpon, Benedict Julius Steven
A waterfall model is a sequential design process, used in software development processes, in which progress is seen as flowing steadily downwards( like a waterfall) through the phrases of Conception, Initiation, Analysis, Design, Construction, Testing, Production/Implementation, and Maintenance.
The waterfall development model originates in the manufacturing and construction industries which are highly structured physical environments in which after-the-fact changes are prohibitively costly, if not impossible. Since no formal software development methodologies existed at the time, this hardware-oriented model was simply adapted for software development.
SDLC-Software Development Life Cycle fundamentals /basics
The Presentation provides fundamentals of SDLC . The intent is to provide the high level overview to the readers .Details on teh SDLC process , Frameworks are provided.
Feedback for improving the contents are always welcome !
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1. WATERFALL MODEL IN SYSTEM
DEVELOPMENT LIFE CYCLE (SDLC)
The waterfall model of the software life
cycle which 1st put forward by Royce in
1979. It become popular in the 1970s.
However, when Boehm brought attention to
it. there are many variants of the waterfall
model depending on the organization the
use the model and the specific projects.
Presentation by Management Study Online (MSO)
2. SEQUENTIAL WATERFALL
MODEL
The Above figure depicts Linear-Sequential Waterfall model.
Another variant of the waterfall model is the one in which each phase's
results flow into the next and the process. Ideally process in an orderly
fashion. this can be illustrated from the next figure.
3. FIG 2 : WATERFALL MODEL
In the waterfall model "With feedback the process is
structured as a cascade of phases where the output
of one phase constitute the input to the next one.
4. 1. FEASIBILITY STUDY
Feasibility study is study about finding out the Problems. in this
phase feasibility is an evaluation and analysis of the potential of
proposed which is based on extensive investigation and research to
support to process in decision making.
Aims
Work out on overall understanding of the problems.
Generate Different Solution for solving the Problem.
Find out the Solution among alternative which is suitable and best.
Analysis each and every alternatives solution in terms of :
What are the Resources Required
What are the Cost of Development
How much time taken in development etc
5. 2. REQUIREMENT ANALYSIS AND SPECIFICATION
In this phase Developer understand the exact
requirements of the customers. after the knowing
requirement of the customers. developer need to
gathering information and analysis it.
Aims
Requirement gathering and analysis
Analysis the collected data.. is relevant or not
Requirement specification
Find out if any requirement is not completed. and solve it.
6. 3. DESIGN AND
SPECIFICATION
In this design phase developer transform the Gathered
requirement specification data into a particular format
and bring it in a structure format.
Aims
Design phase transforms requirement specification data into a
Programming language structure.
Bring all gathered customers requirement in a particular format
for developing the software.
7. 4. CODING AND MODULE
TESTING
In this Phase developer start developing this software.
now in this phase developer start coding using
programming language according to the requirement of
the customers.
Aims
Convert software design into source code.
Dividing in module if software have many function.
Testing each module after the coding. if developer test
individual module is working correctly or not.
8. 5. INTEGRATION AND SYSTEM TESTING
In this phase after the developing every module and its
testing developer integrate all module and made one
software/system. "For example: developer divided one
software into 4 module and after the developing of
module 1, 2, 3, and 4 developer integrate all module
each other and developed one software" after the
integration he test whole software and test each and
every functions of the software.
Aims
Integrate all module in a system.
Ensure that the developed system functions working according to
the requirement of the customers as specified in the document.
9. 6: DELIVERY
In this phase of waterfall model after the complete
development of the software. developer distribute and
provide software to users for fulfilling users needs and
Desire.
10. 7. MAINTENANCE
Corrective Maintenance:
Corrective maintenance is kind of maintenance in which correct
errors which are not discovered during the projects development
phase.
Perfection Maintenance:
Perfection maintenance in also a kind of maintenance in which
developer improve implementation of the system.
and developer try to enhance the Facilities and Functions of the
system.
Adoptive Maintenance:
As per the Environment Software must be maintenance. (For
example:- A software which is developed for Window xp in 2005
but Now peoples are using Window 7 or 8. in this case developer
maintain his software and develop according to window 7 and 8
supporting).
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