What is BDD? The role, Scope, and Benefits of BDD in Software Development
BDD stands for Behaviour Driven Development, which means a high level software project methodology. It uses the outside in technique in which the first we figure out the outside layer that defines the needs of the business. And then, the cycle moves to its next steps. It includes figuring out the requirements, features and at last fulfilling the given standards to release the final product. What does a company expect to benefit from BDD? Teams who are already using TDD and ATDD consider BDD to drive several benefits. They expect BDD to offer practical guidance on organizing the communication between different teams of developers, testers, and domain experts. Besides effective communication, tools targeting a BDD approach should automatically generate technical. And end user documentation from the BDD specifications. Here you will explore what BDD is according to software development, the role and scope of BDD, and how BDD benefits a software development company.
What is BDD ( Behaviour Driven Development)?
The most important part of the project is the development phase. BDD is a technique that enables you to make the process easier by breaking up the project into smaller tasks and then concluding solutions. Development is a pretty challenging and complicated phase of a project, and resultantly many teams tend to miss the key elements. This vital element of the development process is to fulfill the specific requirements of a business. To overcome these problems, top software development companies start their development project with a defined approach. The main goals and power of the software development cycle are based on a progressive and defined approach.
The first step in behavior driven development is to convert the given idea into a list of requirements between the outside and inside layers. Moreover, one important fact that is essential to remember while listing the requirements is that it should be so that everyone understands it. For ensuring that every team member gets the point, we accomplish flexibility with a story driven implementation. This story will act as a natural language that everyone understands and clearly describes the desired outcome. However, it’s fair to say that Behaviour Driven Development (BDD) is quite familiar to the TDD but differs in a way that focuses on the discussion among team members. Moreover, BDD leads TDD and ATDD with the following tactics:
- It applies the “Five Whys” principle to every proposed user story. Thus ensuring that purpose is clearly related to business outcomes.
- Defining “From the Outside in” means implementing those behaviors that contribute directly to the business outcomes.
- Explains the behaviors in a single notation that is directly accessible to project domain experts, testers, and developers. It ensures efficient collaboration between the team.
- Moreover, implementing these techniques all the way down to the lowest levels of abstraction of the software encourages us to pay attention to the distribution of behavior. Consequently, the progression of the project remains cheap.
Role of BDD – Development Cycle
BDD mainly aims to develop code through the interactions between the developers and users with the help of an approach outside in development. In practical terms, it is an idea to create examples that describe software behavior that the user evaluates. However, it is important to guide software development through BDD methodology. It is the responsibility of project managers to specify everyone with their duties and allow the development of the tool in question. The mock ups of the software development plan are also created in this phase to stimulate system modules before writing them. Furthermore, the use of these tests will help to create the opportunity for fast feedback before development.
The Scope of Behavior Driven Development
Before running a QA software test, BDD in the project requires the software developer and testers to answer the following detailed questions:
- Where to begin the process?
- What should be a part of the software test and what should not be tested?
- How often is it required to test?
- What to name the testing process?
- How do you find out the reason for test failure?
In simple words, BDD works on the unit and acceptance testing to avoid several common issues. However, most of the BDD suggests writing unit test names as complete sentences, starting with the conditional verb, i.e., “Should,” in the English language. In addition to this, it suggests that all the statements are written should be in clear business terms and order of business related values. At the same time, the user story in BDD software development and testing projects is an informal way of using natural language to describe the specifications of the software system. These software specifications are described from an end user view and are documented in the project’s index cards. Moreover, some teams use BDD frameworks for collaboration and communication between the software developers, the QA team, and business or nontechnical participants in the development project.
What are the Advantages of Behavior Driven Development?
Following are the reasons why most software development teams choose BDD as their preferred testing methodology.
1- Excellent Results
Through the BDD approach, developers have resulted in software design syncs with the exact business owner’s requirements, leading to suitable solutions.
BDD in software development projects allows excellent flexibility in new design integrations. Also, it makes the software architecture simpler and easier to manage. It makes the system so flexible that you can quickly adjust to new requirements without disturbing the proprietary stability and work balance.
3- Efficient Collaboration
The majority of the project development teams adopt BDD for efficient communication throughout the project. Excellent communication between the team makes feedback and tracking updates simple.
4- User Satisfaction
To improve business appraisal and help to gather more customers requires BDD to software satisfy user’s needs. Moreover, user focused development boosts customer loyalty and is necessary for brand reputation.
5- Deep Understanding
BDD ensures that both tech oriented and nontechnical team members also have insight into the project’s progression. To a great extent, common language makes it possible to involve everyone.
6- A Living Documentation
BDD is a real example of an all time usable description of the current system behavior. The results drawn from the system are the easiest project guidelines for developers involved. Furthermore, it validates the system before regulatory or third party changes.
7- Instant Iterations
BDD makes it easier for the team to work in rapid repetitions. At the same time, allowing the team to continuously break down user’s problems into several elements for fast development.
Principles of BDD:
- Enough is Enough: Advanced planning, analysis, and design have diminishing returns. We must not do less than what is essential to start, but put more than that when it’s time to finish.
- Delivering value to “Stakeholders”: For instance, if any team member is doing something that does not deliver value or increases your skills or ability to deliver outcomes. Then that specific member should quit that and do something different.
- Everything is behavior: Either at the level of code application or about testing and beyond, the team should use the same ideas and language to describe the behavior at any level.
At the end of the day, BDD (Behavior Driven Development) is about streamlining the entire software development process and delivering the required results. And the answer to what is BDD? It is not only a mere toolset, but it is a mindset. BDD teaches business analysts, testers, and developers effective ways to discover the requirements. Moreover, it can also help the developers to write higher quality code and ensure maintenance.
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