Proper documentation is created in this phase, which acts as a guide for the software product. Testing After the source code is written, it is tested by the test engineers either manually or by using tools like JIRA, Jenkins, Selenium, etc.
The code may be free from bugs, but it should pass all the test cases also. The testers frame the test cases and test the software accordingly. There are different types of testing such as accessibility testing, functional testing, black box testing, load testing, integration testing, interactive testing, security testing, white-box testing, etc.
Deployment and Delivery The software is deployed in increments into the marketplace or ground reality. Depending upon the enterprise, the deployment process begins either manually or automatically using Application Release Automation ARA tools to the production environment. These tools are mostly linked with the continuous integration tools to facilitate successful incremental releases of the working software. In this phase, the functioning software is delivered wholly to the production environment if the increments are successful.
Otherwise, the increments are rolled back and fixed and then deployed again. Monitoring and Maintenance Once the software product is delivered, it is constantly monitored to look out for defects and issues that the user might encounter. The user feedbacks and reviews are analyzed. The respective teams fix the defects or improvise the software products. The bug fixes may not flow through the entire cycle, but a well-planned process is carried out so that the fix doesn't introduce other problems.
This practice is also known as regression. I hope this blog post gave you a clear idea of the 8 stages of the Software Development Life Cycle. The tasks in each stage may be performed together, or are independent. A successful SDLC would require cooperation and smart work across all the teams. This helps to speed up the software product development process by automating, otherwise manual processes. Irrespective of the best practices adopted, understanding the user's requirements and queries is the key to optimizing the whole software product development process.
We believe in providing quality content to our readers. If you have any questions or concerns regarding any content published here, feel free to contact us using the Contact link below. The result of this phase is a working software product and a Source Code Document.
After a development team completes programming software, it's time for the Quality Assurance QA team to step in. The QA team tests the software to measure its quality. During this phase, the software undergoes different kinds of tests:. Software developers fix any bugs that come up at this stage, and then the QA team tests the software or its component again.
Quality assurance is an ongoing process that continues until the software is entirely free of bugs and meets the requirements. The tested version of the software is shipped to the market for beta testing. The support team collects feedback from the first users, and if any bugs come up during this stage, software developers fix them. After that, a new, improved version is rolled out. The deployment stage also includes further software maintenance and its constant strengthening. Software development life cycle may also entail ideation or initial planning , preceding requirements collection, and maintenance as the final stage.
Software development life cycle models allow you to effectively plan and follow a software development process step-by-step, making it as predictable as possible. Each model comes with its own approach to the software development process. No matter which model you choose, the phases of SDLC will remain the same.
Below, we take a look at the two most common methodologies. With the Agile approach, software developers can quickly adapt to the market situation, as this model allows them to make changes to the product at any stage of the software development process. This approach perfectly suits projects with varying requirements. What does Agile software development life cycle look like? This method lets you build products using short cycles "sprints" , where each sprint ends with a working product with a limited number of features.
Each sprint includes design, development, testing, and deployment. The benefit of this approach is that product owners can see the results of each short cycle, provide their feedback, and make corrections if needed.
At the beginning of the next cycle, software developers revise the previous version of the product and present it for the next round of feedback. As such, the Agile software development life cycle is known as a continuous process. As two utterly different approaches to software development, Agile and Waterfall are suitable for different kinds of projects. The Waterfall model is a good solution for projects with stable and defined requirements, whereas Agile is best suited for projects with varying requirements.
Waterfall promotes a rigid approach to software development as compared to Agile's flexible approach. This model doesn't suggest implementing any changes within the software development process.
SDLC provides a series of steps to be followed to design and develop a software product efficiently. SDLC framework includes the following steps:. This is the first step where the user initiates the request for a desired software product. He contacts the service provider and tries to negotiate the terms. He submits his request to the service providing organization in writing. This step onwards the software development team works to carry on the project. The team holds discussions with various stakeholders from problem domain and tries to bring out as much information as possible on their requirements.
The requirements are contemplated and segregated into user requirements, system requirements and functional requirements. The requirements are collected using a number of practices as given -. After requirement gathering, the team comes up with a rough plan of software process. At this step the team analyzes if a software can be made to fulfill all requirements of the user and if there is any possibility of software being no more useful.
It is found out, if the project is financially, practically and technologically feasible for the organization to take up. There are many algorithms available, which help the developers to conclude the feasibility of a software project. At this step the developers decide a roadmap of their plan and try to bring up the best software model suitable for the project.
System analysis includes Understanding of software product limitations, learning system related problems or changes to be done in existing systems beforehand, identifying and addressing the impact of project on organization and personnel etc.
The project team analyzes the scope of the project and plans the schedule and resources accordingly. Next step is to bring down whole knowledge of requirements and analysis on the desk and design the software product. The inputs from users and information gathered in requirement gathering phase are the inputs of this step. The output of this step comes in the form of two designs; logical design and physical design. Engineers produce meta-data and data dictionaries, logical diagrams, data-flow diagrams and in some cases pseudo codes.
This step is also known as programming phase. The implementation of software design starts in terms of writing program code in the suitable programming language and developing error-free executable programs efficiently.
Errors may ruin the software from critical level to its own removal. Early discovery of errors and their remedy is the key to reliable software. Software may need to be integrated with the libraries, databases and other program s. This stage of SDLC is involved in the integration of software with outer world entities. This means installing the software on user machines.
At times, software needs post-installation configurations at user end. Software is tested for portability and adaptability and integration related issues are solved during implementation. This phase confirms the software operation in terms of more efficiency and less errors.
0コメント