The Software Development Life Cycle is a set of well-defined, tried and tested processes or phases that a project has to go through in order to be successful and delivered as per the expectation within the available resources. SDLC requires knowledge of various SDLC phases, tools and techniques that one has to implement as per the need of the project. If you are a beginner, intermediate or experienced professional who is looking out to make your career in SDLC, then this s article on SDLC interview questions is a perfect resource for you as it covers various basic to advanced concepts of SDLC like SDLC methods, i.e., waterfall, spiral, agile models, risk management, scope creep, Scrum, various types of testing, CMM, RAD and various scenario-based questions. This will help you prepare and ace your next interview to build a career in SDLC roles that will provide you with opportunities to manage and drive an entire project and team.
SDLC stands for Software Development Life Cycle is a set of structured processes and defined phases used for the development of High-Quality Software with defined budget, schedule and resources for meeting or exceeding the Customers expectations. SDLC covers all the phases of Software Development right from start to end. SDLC once defined, it is then documented and shared with the respective teams so as to keep track of the overall project.
Software Development involves various tasks that need to be completed in a well-defined and sequential manner for its successful completion as input of one phase serves as an output for the following phases, also there are multiple teams and people involved in the Software Development, Development of Software requires various inputs from different team which then becomes the output for a different stage/team hence to orchestrate the entire process smoothly we need to follow SDLC
For Example, A Software has to be developed and there are multiple teams working on the project, it is obvious that development cannot be done until requirement gathering is completed and testing cannot be done until development is completed, so to orchestrate the tasks of the team in a manner that each team is able to perform their tasks uninterrupted and with clear set of goals and inputs SDLC is required to be an essential part of the project.
Expect to come across this popular question in basic SDLC interview questions. DLC mainly has 6 Stages, namely:
During this phase all the necessary and relevant information is collected through the customer by meeting them face to face or virtually in order to understand the requirement of the customer, this information gathered will be used to design the product as per customer expectations. Any ambiguities should be addressed in this phase itself.
In this phase the requirements gathered are documented in SRS documents and architecture of the software is designed keeping in mind the customer requirements.
In this phase the software developer gets the SRS document, and the design is translated into source code. The Application is made executable/ functional in this phase as per customer requirements.
In this phase the software developed in released for testing by the testing team who verifies the application as per customer requirement and reports any issues or ambiguity which are then fixed by developers
Once the product is tested, it is deployed in the production environment or first UAT (User Acceptance testing) is done depending on the customer expectation.
In the case of UAT, a replica of the production environment is created and the customer along with the developers does the testing. If the customer finds the application as expected, then sign off is provided by the customer to go live.
After the deployment of a product on the production environment, maintenance of the product i.e., if any issue comes up and needs to be fixed or any enhancement is to be done is taken care by the developers.
There are various Software development Life Cycle Models in industry and each one of them has their own pros and cons. Following is the list of different software life cycle models in use:
SDLC has become as good as a foundation and a pillar for a building without which a building cannot be built, similarly a project cannot be built successfully if there is no proper SDLC defined for it. Below are a few points that highlight the importance of SDLC
The Waterfall model follows a linear approach to the software development life cycle (SDLC) in which progress flows in a single direction, like a cascading waterfall. In other words, each phase of the waterfall model must be completed before the next phase can begin, and there is no overlap or going back and forth between phases.
The Waterfall model consists of the following phases:
Requirements gathering: In this phase, the requirements for the software are defined and documented by meeting and discussion with the client.
One of the main advantages of the Waterfall model is that it is simple, straightforward, and easy to understand, as each phase has well-defined goals and deliverables. However, it is inflexible to changes and may not be suitable for projects that require flexibility or rapid changes
In terms of Software Development, a prototype is an early sample or model of a product that is used for the purpose of demonstration of a solution. It is mainly used during the design and development phases to visually and functionally for giving demos to the client/ customer so as to demonstrate functional working of the product to better understand the developed product.
The prototype can be used to gather feedback and make any necessary changes before the final product is developed. The prototype model in SDLC is an iterative process, where multiple prototypes are developed and refined until the final product meets the desired requirements.
The Incremental Model in SDLC builds the software into sets of small increments, each increment adds up the functionality to the previous functionality or produces a better version of the past increment. The incremental model is also known as the "evolutionary model" and is a hybrid approach that combines elements of both the waterfall and agile methodologies.
In this model, the application development cycle is divided into a series of small projects, called increments, that are completed one at a time. Each increment focuses on a specific subset of the system's requirements, and at the end of each increment, a working version of the system is delivered. This allows for early feedback and testing, which can be used to adjust the design and development of the system.
One of the key advantages of the incremental model it is more flexible than the waterfall model and changes or updates can be incorporated in each increment and the updated software can be demonstrated to the stakeholder to gather feedback and work on that feedback.
The Spiral model is a software development life cycle (SDLC) model that combines elements of both the Waterfall model and the Iterative model. It is called the Spiral model because it involves a series of iterations, or "spirals," that move the project through the various phases of the SDLC.
The Spiral model consists of the following phases:
The Spiral model is a more flexible and adaptive approach to the SDLC, as it allows for changes and adjustments to be made throughout the process. However, it can be more complex and may require more resources than other SDLC models.
The Big Bang model in Software Development Life Cycle (SDLC) is a process where the entire system is developed and delivered all at once, rather than in incremental stages. The development process begins with a comprehensive requirement gathering phase and ends with the delivery of a complete system.
The Big Bang model is also known as the "monolithic" approach, as the entire system is developed in one large project, rather than being divided into smaller, manageable chunks. This approach is often used for small projects or for projects that have well-defined, fixed requirements.
It's no surprise that this one pops up often in SDLC life cycle interview questions. Agile is a set of values and principles for software development that promotes adaptive planning, early delivery, and continuous improvement rather than finishing a phase completely before starting the next phase. The Agile methodology emphasizes flexibility, collaboration, and customer satisfaction. The Agile approach is typically used in the management of software development projects and is often considered to be an alternative to the traditional Waterfall model. Agile methodologies include Scrum, Kanban, and Lean software development, among others.
Waterfall and Agile are two different approaches to project management, and they have some key differences.
The Waterfall model is a linear, sequential approach to software development. It is characterized by strict planning, strict requirements, and a rigid schedule hence there is not much scope of change in waterfall model once a phase has been completed. The process is divided into distinct phases, such as requirements gathering, design, development, testing, and maintenance, and each phase must be completed before the next one can begin. This approach is best suited for projects where requirements are well understood, and the scope of the project is unlikely to change.
On the other hand, Agile is a flexible, adaptive approach to software development. Agile promotes adaptive planning, early delivery, and continuous improvement. The process is divided into small, incremental phases where various teams work on dedicated tasks, called sprints, and each sprint is focused on delivering a working product increment. Agile teams prioritize flexibility, collaboration, and customer satisfaction. The Agile approach is best suited for a project where requirements are uncertain and may change throughout the project.
The V-Shaped model is a software development life cycle (SDLC) model that is based on the Waterfall model. Like the Waterfall model, the V-Shaped model also follows a linear process, with each phase being completed before the next phase can begin. However, the V-Shaped model adds additional emphasis on testing at each stage of the process.
The V-Shaped model is considered to be a more rigorous and thorough version of the Waterfall model, as it includes more comprehensive testing at each stage of the process. However, it can still be inflexible and may not be suitable for projects that require a high degree of flexibility or rapid iteration.
A use case defines how a user can interact with a system in order to accomplish a specific goal. It typically includes a set of steps that a user goes through in order to complete a task. A user story needs actors, inputs, actions, and expected outcomes for each step.
A user story is a simple, informal description of a feature or change that a user wants in the system. It is typically written from the perspective of the user, and is used to capture the requirements for a specific piece of functionality. User stories are typically shorter and less detailed than use cases, and are used to provide a high-level overview of what needs to be built.
Unit testing, integration testing, and acceptance testing are all types of software testing that are performed at different stages of the development process to ensure the quality and functionality of a product or system.
Unit testing is a type of testing that is performed on individual units of code, such as functions or methods, to ensure that they are working correctly. Unit tests are typically automated and are run frequently, such as every time the code is changed, to catch any bugs or errors early in the development process. For e.g.: Testing whether user can login in the application by entering email and password
Integration testing as the name suggests is performed by integrating multiple sets of unit tests which together form the flow of the entire application. Integration testing is done to ensure that the Application works as expected when tested end to end right from the login screen to the last module. Integration testing is more complex and time consuming than unit tests. An Integration test may involve combination of automated and manual tests. An example of Integration testing would be testing an E-Commerce application right from creating account, login, order, payment, delivery status, feedback, and review etc.
Acceptance testing, also known as end-to-end testing, is a type of testing that is performed on the entire system to ensure that it meets the requirements and specifications of the client or customer. Acceptance testing is typically performed by the client or customer and may include testing the system in a real-world scenario to ensure that it is usable and functional.
A bug and a defect are often used interchangeably, but they can have slightly different meanings depending on the context.
A bug is a general term used to describe an error, flaw, failure, or fault in a computer program or system that causes it to produce an incorrect or unexpected result, or to behave in unintended ways. A bug can be caused by a variety of factors, such as a coding error, a design flaw, or a problem with the system's environment.
A defect, on the other hand, is a specific term used in the software development process to describe a deviation from the specified requirements or design of a product or system. A defect may be the result of a bug or an error in the design or implementation of a feature.
A project and a product are often related but they are different concepts.
A project is a temporary endeavor undertaken to create a unique product, service, or result. It is a temporary endeavor that has a defined start and end date, and it is undertaken to achieve specific goals and objectives. Projects are usually undertaken to achieve a specific outcome and are usually time-bound, and have a specific scope, budget, and resources.
A product, on the other hand, is a tangible or intangible object that is created as a result of a project or process. A product can be a physical good, such as a car or a piece of software, or it can be an intangible service, such as consulting or training. Products are created to meet a specific need or demand, and they are usually designed to provide value to customers or end-users.
A prototype and a proof of concept (POC) are both used to test and evaluate a new product or system, but they serve different purposes and are used at different stages of the development process.
A prototype is a working model of a product or system that is used to test and evaluate its design, functionality, and performance. A prototype can be a physical model or a computer simulation of the final product or system. It is typically created early in the development process and is used to test and refine the design before the final product is built.
A proof of concept (POC) is a demonstration of the feasibility of a new product, process, or technology. POC is a preliminary version of the final product or system that is used to test and evaluate its feasibility, performance, and scalability. POC is usually a minimalistic working version of the final product or system that allows us to test the most critical parts of the system, validate the assumptions and test the core functionality. It is typically created later in the development process, after the design has been refined, and is used to demonstrate that the product or system is viable and can be built.
Scrum is a specific Agile framework for managing and completing complex projects. It is based on the principles of transparency, inspection, and adaptation. Scrum is often used in software development, but it can be applied to any complex, innovative work. Scrum is a framework that provides a structure for managing work, but it also encourages self-organization, flexibility, and rapid learning within teams.
Standup, also known as daily Scrum, is a specific type of meeting that is used in Scrum. It is a brief, daily meeting where team members come together to discuss progress, obstacles, and plans for the upcoming workday. The standup is usually time-boxed to 15 minutes, and the team members are expected to stand during the meeting to keep it short and focused. The purpose of the standup is to keep the team aligned and to ensure that everyone is aware of the progress being made, so that any obstacles can be addressed, and plans can be adjusted as needed.
All Projects involve risks, some are foreseen, and some are unseen. A project needs to be managed and should have a risk management plan for each type of risk in order to mitigate and minimize the effect of the risk if it occurs during the course of the project.
The risk management process in SDLC typically includes the following steps:
Risk management is an ongoing process that should be integrated into the SDLC from the beginning of the project and throughout its lifecycle. By identifying and managing risks early, organizations can reduce the likelihood of project failure and increase the chances of a successful outcome.
How do you ensure that communication and collaboration are effective throughout the SDLC process?
Effective communication and collaboration are essential for a successful software development life cycle (SDLC) process. Here are a few best practices that can help ensure that communication and collaboration are effective throughout the SDLC process:
By following these best practices, teams can ensure that communication and collaboration are effective throughout the SDLC process, which will help to ensure that the project is completed on time and within budget.
Documentation is an essential part of the Software Development Life Cycle (SDLC) as it provides a record of the project's progress and a reference for future work. Proper documentation helps to ensure that the project is completed on time, within budget, and to the satisfaction of the stakeholders.
Here are some of the important reasons for documentation in the SDLC:
Overall, documentation is an important aspect of the SDLC as it helps to ensure that the project is completed successfully, provides a record of the project's progress, and serves as a reference for future work.
Requirement gathering is the process of identifying, documenting, and understanding the needs and expectations of the stakeholders for a software project. It is an essential part of the Software Development Life Cycle (SDLC) as it lays the foundation for the rest of the project.
Here are some of the important reasons for requirement gathering in the SDLC:
Overall, requirement gathering is an essential part of the SDLC as it helps to define the project's scope, identify the stakeholders, prioritize requirements, reduce rework, improve communication, and ultimately improve the quality of the final product.
Scope creep occurs when changes are made to the software requirement beyond one's control and to the state where it becomes difficult to complete the project within the time and budget agreed upon. Scope creep usually occurs when the changes are accepted without any analysis and without documenting the change request, hence changes that happen during the implementation of project should be properly analyzed and it should not be accepted without proper impact and change analysis.
The tools used in the software development life cycle (SDLC) can vary depending on the specific method or model being used. Some common tools used in the SDLC include:
Code review tools, such as Review Board, Crucible, and PullRequest, to review and improve the quality of code.
In Agile software development, a sprint is a fixed period of time, usually two to four weeks, during which a cross-functional team works to complete a set of deliverables. The duration of a sprint is determined by the specific Agile methodology being used, and the specific needs of the project and team.
In Scrum, which is one of the most widely used Agile methodologies, the ideal duration of a sprint is typically two to four weeks. This time frame allows the team to complete a significant amount of work, while also providing enough flexibility to adapt to changes or unexpected obstacles. The two-week sprint is the most common, but some teams use sprints of three or four weeks.
It is important to note that the ideal sprint duration will vary depending on the specifics of the project and the team. The duration of sprints should be evaluated regularly and adjusted as needed. The team should regularly review and assess the sprint duration, and make adjustments as necessary. Factors that can influence the ideal sprint duration include the size of the team, the complexity of the work, and the availability of resources.
One of the most frequently posed SDLC phases interview questions, be ready for it. SRS or Software Requirement Specification is a document produced at the time of requirement gathering process. It can also be seen as a process of refining requirements and documenting them.
SRS is a formal document that acts as a written agreement between the development team and the customer. SRS acts as input to the design phase and includes functional, performance, software, hardware, and network requirements of the project.
Feasibility Study is the process of analyzing all the aspects of the project before starting it. Feasibility Study involves collecting data, carrying out research/study to evaluate different aspects of the project such as time, budget, expertise, resources, complexity of the project that will help determine whether the project is doable within certain time and budget. Once the consensus is reached among the project team the project can be started with implementation
For example: If planning this project becomes tedious- due to numerous considerations- stakeholders’ expectations, etc., then a pre-feasibility study may be needed. In this case, stakeholders assess to determine if this project is feasible before actual development begins. If such an assessment seems daunting, then an informal survey via internal communication may also suffice. This assessment may reveal that stakeholders desire certain features that would make this project feasible but would prefer to participate in making those requirements known to those responsible for its development.
There are several types of feasibility studies that can be conducted, depending on the type of project and the goals of the study. Some common types of feasibility studies include:
In summary, the choice of model should depend on the specific characteristics of the project such as requirements, scope, schedule, team size, skills, and customer involvement. It is also important to consider the organization's culture and previous experience with different models.
Quality assurance (QA) is an essential aspect of the software development lifecycle (SDLC) and it is important to ensure that it is maintained throughout the process. Here are several ways to ensure that QA is maintained throughout the SDLC process:
Documenting the results of the testing phase is an important part of the software development lifecycle (SDLC) as it helps to ensure that the testing process is thoroughly documented and that any issues or defects that are discovered are properly tracked and addressed. Here are several ways to document the results of the testing phase:
Collaboration tools: Collaboration tools such as issue trackers and project management software can be used to document and track the progress of the testing phase, and to share the results with the development team and other stakeholders.
A design document is a written document that describes the design of a product, system, or process. It typically includes information such as the product's goals and objectives, a detailed description of its functionality, information about the target audience, and any constraints or limitations on the design. Design documents are used to communicate the design of a product or system to stakeholders, such as developers, project managers, and clients, and to serve as a blueprint for the development and implementation of the product or system.
A maintenance plan is a document that outlines the procedures and schedules for maintaining and updating a product, system, or piece of equipment. The purpose of a maintenance plan is to ensure that the product, system, or equipment is operating efficiently and effectively, and to prevent or minimize downtime due to problems or failures.
A typical maintenance plan includes the following information:
A project charter is a document that formally recognizes the existence of a project and provides a clear and concise statement of the project's objectives and stakeholders. The purpose of a project charter is to define the project's scope, objectives, and stakeholders, and to provide a framework for decision-making and problem-solving throughout the project.
A typical project charter includes the following information:
A project schedule is a document that outlines the specific tasks, milestones, and deadlines for a project. The purpose of a project schedule is to provide a clear and detailed plan for the project's execution and to help manage the project's resources and timelines.
A typical project schedule includes the following information:
A project manager and a product manager are both responsible for the development and success of a product or project, but they have different roles, responsibilities, and perspectives.
A project manager is responsible for the planning, execution, and closing of a specific project. They are typically focused on the technical aspects of a project, such as the budget, timelines, and resources, and they work to ensure that the project is completed on time, within budget, and to the satisfaction of the stakeholders. They are accountable for the successful delivery of the project and they make sure that the project is aligned with the company's goals and objectives.
A product manager, on the other hand, is responsible for the overall success of a product or product line. They are typically focused on the strategic aspects of a product, such as identifying customer needs, developing the product vision and strategy, and creating the product roadmap. They are responsible for the product's profit and loss, and for ensuring that the product is aligned with the company's goals and objectives. They make sure that the product meets the customer's needs and that it is competitive in the market.
A project budget is a document that outlines the financial resources that are required to complete a project, including the costs of labor, materials, equipment, and other expenses. The purpose of a project budget is to provide a clear and detailed plan for the project's financial management and to help ensure that the project is completed within the allocated financial resources.
A typical project budget includes the following information:
A project status report is a document that provides a summary of the current status, progress, and issues of a project. The purpose of a project status report is to keep all stakeholders informed about the project's progress and any issues that may arise, and it helps the project manager to identify and solve any problems that may occur.
A typical project status report includes the following information:
A project closure report is a document that summarizes the overall performance of a project, including its objectives, results, and lessons learned. The purpose of a project closure report is to formally document the completion of the project and to provide insight into the project's successes and failures. This report helps to ensure that the knowledge and experience gained from the project are captured and can be used to improve future projects.
A typical project closure report includes the following information:
A project manager plays a crucial role in the software development life cycle (SDLC) both by leading and coordinating the project team to ensure that the project is completed on time, within budget, and to the satisfaction of the customer and stakeholders. The specific responsibilities of a project manager in the SDLC can vary depending on the specific methodologies and frameworks being used, but some of the key responsibilities include:
The project manager plays a vital role in the SDLC by leading the project team, coordinating the various phases of the SDLC, and ensuring that the project is completed successfully and on time. They are also responsible for ensuring that the project is in alignment with the overall goals and objectives of the organization.
There are several best practices that can be followed to ensure the success of the software development life cycle (SDLC):
By following these best practices, organizations can ensure that their software development projects are completed on time, within budget, and to the satisfaction of all stakeholders.
In this type of question used your personal experience by giving an example of one of your projects. An example to answer this question is below:
Supercell used an Agile approach, specifically Scrum, to develop the game. The development team was divided into small, cross-functional teams, and each team was responsible for a specific aspect of the game such as art, design, and programming. The team used a Scrum framework, which included sprints, daily stand-up meetings, and a retrospective meeting at the end of each sprint. This allowed the team to quickly adapt to changes and deliver a working product increment at the end of each sprint.
In addition, Supercell had a strong focus on customer feedback and used it to improve the game throughout the development process. The team was constantly testing the game and gathering feedback from players, and this feedback was used to identify areas for improvement and make changes to the game.
The result of the Agile approach was that Supercell was able to quickly develop and release "Clash of Clans" in a short period of time, and the game quickly became a huge success, grossing over $1 billion in revenue. The Agile approach allowed the team to quickly adapt to changes and deliver a high-quality product that met the needs of the customers
Documenting the results of the testing phase is an important part of the software development life-cycle (SDLC) as it helps to ensure that the issues in software are properly documented with necessary descriptions and scenarios that will help the development team to fix the issues and also help to keep track of the status of the testing phase. Here are several ways to document the results of the testing phase:
Ensuring that software is ready for deployment at the end of the software development life-cycle (SDLC) process is a critical step to ensure the success of the project. Here are several ways to ensure that software is ready for deployment:
Document the deployment process: The deployment process should be thoroughly documented, including all the steps that were taken, the resources that were used, and the results of the deployment. This will be helpful for future reference and for troubleshooting.20) What is backlog in SDLC?
In software development, a backlog is a prioritized list of tasks or features that need to be completed as part of a project. It is a collection of items, such as user stories, bugs, or tasks, that the development team needs to work on. The backlog is usually maintained and prioritized by the product owner or project manager, and is used to guide the development team in their work.
How can you ensure that requirements are properly gathered and understood during the planning phase of the SDLC?
One way to ensure that requirements are properly gathered and understood during the planning phase of the software development life cycle (SDLC) is to use a formal requirement gathering process. This process should involve clearly defining and documenting the requirements, as well as obtaining feedback and approval from stakeholders. Additionally, involving representatives from different departments or teams, such as development, QA, and project management, can help ensure that all necessary requirements are identified and understood. It is also helpful to use techniques such as user stories, use cases, and requirements tracing to ensure that requirements are clearly defined, traceable, and testable.
Scope creep refers to the tendency for the scope of a project to expand beyond what was originally agreed upon. To effectively manage scope creep during the development phase of the SDLC, it is important to have clear and well-defined project requirements, which should be captured and approved by all stakeholders at the beginning of the project. This will provide a clear understanding of what is in and out of scope, and what the project goals are.
Here are a few additional steps that can be taken to effectively manage scope creep:
How can you ensure that testing is thorough and comprehensive during the testing phase of the SDLC?
How can you ensure that the software is properly deployed and transitioned to production during the deployment phase of the SDLC?
There are several ways to ensure that software is properly deployed and transitioned to production during the deployment phase of the software development life cycle (SDLC):
How can you ensure that the software is properly maintained and supported during the ongoing maintenance and support phase of the SDLC?
There are several ways to ensure that software is properly maintained and supported during the ongoing maintenance and support phase of the software development life cycle (SDLC):
Here are several ways to effectively manage and mitigate risks during the software development life cycle (SDLC):
Yes, I can describe a situation where I had to work with a remote team during the SDLC. The project was a web application development project, and the team was distributed across different time zones and locations. We used project management tools such as Trello and Asana to keep track of the tasks and progress. We also used communication tools like Slack and Zoom for daily standup meetings and regular check-ins. We had to ensure that everyone was on the same page, and that there was clear communication of the goals and expectations. Additionally, we had to be mindful of the time zone differences and schedule meetings and deadlines accordingly. Overall, it was a challenging but rewarding experience, and it taught me the importance of clear communication and organization in managing a remote team.
Yes, I can provide an example of a project where I had to implement a disaster recovery plan. The project was an enterprise-level software system for a financial services company. The system was critical to the company's operations, and it needed to be available 24/7. We implemented a disaster recovery plan to ensure that the system could be quickly restored in the event of a disaster such as a natural disaster, power outage, or cyber-attack.
Can you describe a situation where you had to balance competing priorities and meet tight deadlines during the SDLC?
Yes, I can describe a situation where I had to balance competing priorities and meet tight deadlines during the SDLC. The project was a mobile app development project for a retail company. The app was meant to be launched for the holiday shopping season, and the deadline was very tight.
To manage competing priorities, we used a prioritization matrix that helped us to identify the most important features of the app and allocate resources accordingly. This helped us to focus on the most important features and ensure that they were completed on time.
We also used an agile development methodology, which allowed us to make adjustments to the project plan as needed and adapt to changing priorities. This allowed us to manage competing priorities and ensure that the most important features were completed on time.
To meet tight deadlines, we broke down the project into smaller milestones and set intermediate deadlines for each milestone. This helped us to stay on track and ensure that the project was completed on time. Additionally, we closely monitored progress and made adjustments as needed to stay on schedule.
Furthermore, we have a good communication and collaboration with all team members, we used communication and collaboration tools like Slack, Zoom and Microsoft Teams to ensure that all team members were aware of the project's status and any changes that were made.
Overall, it was a challenging experience, but by using a prioritization matrix, an agile development methodology, breaking down the project into smaller milestones, closely monitoring progress, and good communication and collaboration, we were able to balance competing priorities and meet the tight deadline.
A burn down chart is a graphical representation of the amount of work remaining in a project over time. It is typically used in agile software development methodologies such as Scrum to track the progress of a project and identify any potential issues or delays.
The burn down chart typically has two axes: one for time (usually in days or weeks) and one for the remaining work (usually in story points or hours). The chart shows the remaining work over time, with a line that "burns down" as the work is completed.
The chart can be used to track the progress of the project and identify any issues that may arise. For example, if the line on the chart is not burning down as quickly as expected, it may indicate that the team is falling behind schedule. Additionally, if the line on the chart is not following the expected trajectory, it may indicate that the team is not completing the work as expected.
The burn down chart can also be used to identify trends and patterns in the team's performance, such as which days of the week the team is most productive, or which individuals are contributing the most to the project. This information can be used to improve the team's performance and increase the chances of project success.
It is important to note that the burn down chart is a tool to track progress, it should be accompanied by other metrics and methodologies to have a clear view of the project status.
Expect to come across this popular question in SDLC interview questions for experienced.
Overall, effective stakeholder communication and management in an Agile environment requires clear communication, stakeholder involvement, prioritization, collaboration, adaptability, and continuous feedback. The key to success is to keep stakeholders informed, involve them in the process, and respond to their needs and feedback throughout the project.
In Agile development, competing priorities are handled through the use of a prioritization technique called "backlog grooming." This process involves regularly reviewing and re-ordering the items in the product backlog, which is a prioritized list of features and requirements for the project. The backlog grooming session is usually led by the Product Owner and attended by other members of the development team. During the session, items in the backlog are discussed and prioritized based on their business value, dependencies, and feasibility. By prioritizing the backlog in this way, the team can ensure that the most important and valuable items are addressed first, while also taking into account any constraints or dependencies that may impact the development of those items. Additionally, during the sprint, the team should have a daily meeting to discuss and resolve any competing priorities that arise.
Scaled Agile Framework (SAFe) is a methodology for managing and executing large-scale software development projects using Agile principles. It is designed to help organizations implement Agile development at an enterprise level, by providing a framework and a set of best practices for coordinating and aligning the efforts of multiple teams working on a common project.
SAFe is based on the principles of Agile development, such as iterative and incremental delivery, adaptive planning, and rapid and flexible response to change. It also includes elements of Lean development, such as an emphasis on value and flow, and a focus on continuous improvement.
SAFe is organized around several key elements, including:
SAFe is a flexible framework and can be tailored to the specific needs of an organization. It is widely used in many industries like banking, healthcare, retail, e-commerce, etc.
Handling and managing technical debt in an Agile environment can be a bit challenging as Agile development methodologies focus on delivering working software quickly, rather than on long-term code maintainability. However, there are a few best practices that can help teams manage technical debt in an Agile environment:
High-level design (HLD) is a step in the software development process that follows the requirements gathering and analysis phase. It is used to create a detailed architectural blueprint of the system, including the components, interfaces, and relationships between them.
The purpose of HLD is to provide a clear and comprehensive understanding of the system's architecture, so that the development team can begin to implement the solution. It also helps to identify any potential design or architectural issues that need to be addressed before the system is built.
HLD typically includes:
It is important to note that HLD is different from low-level design (LLD) which is more detailed and implementation-specific. HLD is a bird-eye view of the system, while LLD is more focused on the implementation details.
The HLD is usually created by the technical lead, architect, or the senior developer, and it is reviewed by the stakeholders and the development team. It serves as the basis for the detailed design and implementation phases of the project.
Low-level design (LLD) is a step in the software development process that follows the high-level design (HLD) phase. It is used to create a detailed blueprint of the system, including the specific algorithms, data structures, and interfaces that will be used to implement the solution.
LLD is a more detailed representation of the system than HLD, and it is focused on the implementation details of the solution. It provides a clear understanding of how the system will be built, including the specific technologies and programming languages that will be used, as well as the data models, interfaces, and design patterns that will be employed.
LLD typically includes:
LLD is usually created by the developers, and it is reviewed by the technical lead, architect, or the senior developer. It serves as the basis for the implementation and testing phases of the project.
It is important to note that LLD is different from HLD, which is more high-level and architectural-focused. LLD is more focused on implementation details, while HLD is a bird-eye view of the system.
The Capability Maturity Model (CMM) is a framework that describes the key elements of an effective software development process. It is used to evaluate the maturity of an organization's software development process and identify areas for improvement. The CMM framework defines five levels of maturity, each representing a different stage of process maturity:
Scrum is an Agile framework for managing and completing complex projects. It is a flexible, iterative, and incremental approach to software development that allows teams to deliver working software in a short period of time, typically two to four weeks, called a Sprint.
Scrum is based on the following roles, events, and artifacts:
Scrum's key features are:
DDLC (Design-Driven Life Cycle) and SDLC (Software Development Life Cycle) are both methodologies for developing software systems, but they approach the development process in different ways.
SDLC is a structured, sequential process for developing software. It typically includes the following phases:
In SDLC, the design phase is separate from the implementation phase, and it is typically done before the implementation begins. The design is then used as a blueprint for the implementation process.
On the other hand, DDLC puts more emphasis on the design process and it is considered as the first priority. It is a design-first approach, where the design is developed and validated before moving on to the implementation and testing phases.
DDLC typically includes the following phases:
DDLC is a more flexible and iterative process than SDLC, where the design is continuously refined and validated through user feedback and testing. It allows for more flexibility and adaptability to changing requirements.
In summary, SDLC is a traditional, sequential approach that separates design from development, while DDLC is a more modern, design-driven approach that emphasizes the design process and allows for more flexibility and adaptability.
The Rapid Application Development (RAD) model is a software development methodology that emphasizes rapid prototyping and rapid delivery of working software. The goal of RAD is to speed up the development process by using pre-built components and tools, as well as iterative development cycles.
RAD typically includes the following phases:
RAD is often used when time-to-market is a critical factor, and it is particularly well-suited for developing systems with well-understood requirements. It allows teams to quickly prototype and validate a solution with the customer and get feedback, so that they can iterate on the design and improve it as they go.
RAD's key features are:
It is widely used in small projects, projects with well-defined requirements, and projects that require a quick delivery.
Software Development Life Cycle interviews offer positions that are mostly related to Managerial and Planning, Strategy Implementation. Professionals in SDLC positions are responsible for the smooth running of Projects that required strong Interpersonal Skills as well as they should be approachable and have Good Problem-Solving Skills. These qualities should reflect in your personality when you go for the interview. Here are some tips and tricks that will help you stand out from the crowd in SDLC interview questions and answers -
Software Life cycle interview questions are designed for a varied set of roles like previous SDLC interview questions for testers, SDLC interview questions for business analysts etc., hence you need to prepare for your interview based on the role that you appear for. Here are some points which will guide you in your preparation:
Prepare well with these SDLC interview questions and answers and ace your next interview at organizations like:
We firmly believe that these questions on the software development life cycle will help you confidently face your upcoming interviews. If you are looking for certifications in software development, then you can enroll in our Software Development certification.
SDLC interviews will mostly revolve around SDLC and STLC interview questions. The interviewer will try to assess your personality and way of approaching and solving a problem, your communication skills, and your leadership qualities. The interview will start with questions like Tell me something about yourself and your projects.
After the interviewer has an idea of you and your experience, he/she will then ask you SDLC basic interview questions, will try to find out how you have managed various projects by asking scenario-based questions and at the end the interviewer will conclude by giving you a chance to ask any questions related to the job role, organization ad will be happy to answer and your questions and doubts.
The software development life cycle is an essential part of a Software Development Project as it lays down the entire structure of how the project is to be executed and what are its phases. As we have already read in this blog SDLC has various models and each model has its own pros and cons and should be used as per the requirement and nature of the project.
Professionals looking for roles in SDLC have a huge demand as every software-based organization, be it small, mid, or large size needs these professionals for the management of their project. Every business and organization in software development or wants to develop software will focus on an optimized SDLC plan for its successful implementation and for this, they will require good Project/Program Managers, Scrum Master.
This blog will help you ace your interview by helping you prepare for interview questions on SDLC and STLC with answers whether you are looking for a fresher role or are an experienced professional we have curated this article for all levels of Interviews. Along with traditional Interview questions we have also prepared questions on trending topics like agile SDLC interview questions and role-specific questions like SDLC interview questions for testers. Learners must check out top Programming certifications offered by KnowledgeHut to upskill themselves in the field of software development. We wish you the best of luck for your upcoming interviews and may you excel in your career.