What is SDLC?
SDLC is a software development life cycle that based on different steps that are important to create any good software. Every software organization follows these steps to create an efficient software.
SDLC consists of four phases that are as follows:
1. Analysis
2. Design
3. Coding
4. Testing
Mistake in any phase will be leads to entire software error.
Let’s take an overview of these phases
Analysis
What is analysis?
Analysis is a process in which Analysis team finds what are the requirements of the customer. And they make sure that it is possible to fulfill all these requirements.
How analysis is used?
Analysis is the first part of SDLC. As analysis are the requirements and contract between customer and software organization, these requirements are important to create design of the software.
Where analysis is used?
Analysis is used in software designing and development. Designers first read analysis that helps them what to do and how to do.
Without analysis no Software design can be created.
Why analysis is used?
Analysis is used to find out what customer wants from software organization. Without analyzing customer requirements software will be leads to so much mistakes, that will cause problems between customer and software organization.
Design
What is designing??
Designing is a process of writing requirements of customer in diagram form. Diagrams can be of many types.
• Use case diagram
• Entity relationship diagram
• Class Diagram
• Data flow diagram
• And many others…
Why designing is important?
Designing is very important task in SDLC. Because programming needs proper information that can be understand by understanding diagrams.
How we can design diagrams?
We can create diagrams by using many softwares that are available in market. Some popular softwares are Microsoft visio and Star UML.
Where designing is used?
Programmer needs information to create any software. Programmer can’t write any software without information. Even if you want a software that can sum two numbers, then you have to tell the programmer. Programmers collect required information from the diagrams designed by designers.
Coding
What is coding?
A set of instructions given to the compiler to fulfill customer requirements is known as coding.
Coding is done by programmers. Programmers use different tools for coding like
• Dev C++
• Net beans IDE
• Java JDK
• Android Studio
• etc
Why coding is important?
Coding is the main part of SDLC. Because in this part actual software is created. In this part requirements are converted in software form.
How to code?
Coding need skills. Coding is done using different softwares like
• Java
• C++
• Ruby
• Python
Where coding is used?
Coding is used in software creation. No software can be created without coding. Coding can be done by using many languages like java C++ python and many other languages etc.
Testing
What is testing?
Testing is a process of checking software whether it fulfills customer requirements or not, whether it contains any further errors or not. If any error exits then it will be resolved.
How to test software?
Generally there are two methods of testing.
1. Dynamic
2. Static
Dynamic testing also called automatic testing. It is done using softwares like JUNIT and SELINIUM.
Static testing is manual testing and is done by source code of the software.
Why testing is important?
If we don’t test software and hand over it to customer then there may exits some problems likewise calculation problems. So in this case customer will be angry with you.
Where testing is used?
Software testing is used in reducing errors like output of the program that don’t fulfill the requirements of the customer. In this case testing will be used to remove these errors.
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