When is testing started in the sdlc

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SDLC is a process which follows in Software Projects to develop a product in a systematic way and to deliver a high-quality product. By following proper SDLC process, Software companies can react well to the market pressure and release high-quality software.

This process involves different stages of SDLC right from the requirement stage to deployment and maintenance phase. These SDLC phases we will see later section of this post. Requirement gathering and analysis is the most important phase in the software development lifecycle. Requirement phase is the first step of the SDLC. Once the requirement gathering and analysis is done the next step is to define and document the product requirements and get them approved by the customer. SRS consists of all the product requirements to be designed and developed during the project life cycle.

The outcome of this phase is the Software Requirement Specification. It describes how each and every feature in the product should work and how every component should work. Here, only the design will be there and not the code The outcome from this phase is High-Level Document and Low-Level Document which works as an input to the next phase.

Developers of all levels seniors, juniors, freshers involved in this phase. This is the phase where we start building the software and start writing the code for the product. When the software is ready, it is sent to the testing department where Test team tests it thoroughly for different defects. They either test the software manually or using automated testing tools depends on the process defined in STLC Software Testing Life Cycle and ensure that each and every component of the software works fine.

Once the QA makes sure that the software is error-free, it goes to the next stage, which is Implementation. The outcome of this phase is the Quality Product and the Testing Artifacts.

Once when the customers start using the developed system then the actual problems will come up and needs to be solved from time to time. Fixing the issues found by the customer comes in the maintenance phase.

There are various Software Development Life Cycle models in the industry which are followed during the software development process. These models are also referred to as Software Development Process Models. Waterfall Model is a traditional model. Every next phase is begun only once the goal of the previous phase is completed. This methodology is preferred in projects where quality is more important as compared to schedule or cost.

This methodology is best suitable for short term projects where the requirements will not change. The spiral model works in an iterative nature. It is a combination of both the Prototype development process and the Linear development process waterfall model. A high-quality product results in lower maintenance costs in the long run.

The stability of an application or software is a must to entice new users. Apart from that, consistently reliable products also help keep existing clientele. Validating every module of software or application is a must to ensure product precision and accuracy. Since software testing itself is an elaborate process, testers carry it out in phases. Complexities can pop up if testing lacks organization. The complexities may include unresolved bugs, undetected regression bugs, or in the worst case, a module that skipped testing because the deadline got closer.

Each phase of the STLC has a specific goal and deliverables. It involves the initiation, execution, and termination of the testing process. Your valuable software testers have to view, study, and analyze the available specifications and requirements. Certain requirements produce outcomes by feeding them with input data. These requirements are testable requirements.

Testers study both functional and non-functional requirements. After that, they have to pick out testable requirements. Activities in this phase include brainstorming for requirement analysis and identifying and prioritizing test requirements. They also include picking out requirements for both automated and manual testing.

There are a few things you have test even if not explicitly mentioned. These things are universal and should always be tested. But in the requirement analysis phase it about knowing more specific details about the product. You need to learn how the product should be in its ideal state. This phase generates as deliverables a detailed requirements report, besides analysis of test automation feasibility.

Another important deliverable generated in this phase is a requirements traceability matrix. For instance, having traceability in the software development process means that the organization should be able to trace each commit in its codebase back to its original requirements. The RTM—requirements traceability matrix—is a document that allows the organization to connect various artifacts back to their requirements. When it comes to software testing, you want to be able to trace back testing activities to their original requirements.

That way, you reduce waste, by ensuring that every testing activity is connected to a requirement that generates value for the customer.

The second step is test planning, and the QA team creates this plan after analyzing all the necessary testing requirements. They outline the scope and objectives after understanding the product domain. The team then analyzes the risks involved and defines time schedules and testing environments to create a strategy. After that, management finalizes the tools and assigns roles and responsibilities to individuals. An approximate timeline is also defined by which the testing of each module should be completed.

The most important delivery generated in this step is the test plan, which is a document describing the motivation and details of the testing activities for a given project.

Based on the test plan, testers design and develop test cases. Test cases should be extensive and should cover almost all the possible cases. All the applicable permutations and combinations should be gathered. You can prioritize these test cases by researching which of them are most common or which of them would affect the product the most.

Next comes the verification and validation of specified requirements in the documentation stage. Also, the reviewing, updating, and approval of automation scripts and test cases are essential processes of this stage. This phase also includes defining different test conditions with input data and expected outcomes. So, the main deliverables produced in this phase are the actual test cases organized in their test suites.

Testing activities need certain environmental factors—such as servers, frameworks, hardware, and software—for executing developed test cases. Software and hardware configuration, along with test data setup, are the main components of this phase. Hence it is important that your test environment covers all the environments that the user would use.

The working of features also differ based on software and hardware requirements. Research on environments used by end-users would help you prioritize your test environments. The main deliverable in this stage is a complete strategy for test environment management.

An application is ready for testing once the team is done with all the previous phases. According to the test plan, the testers execute test cases.

They also identify, detect, and log the defects, thus reporting the bugs. The team is also responsible for comparing expected results with the real outcome. If any bugs are found, they need to be documented to pass it on to the development team for a fix.