Which of the following activity is not included in Software requirement Engineering process
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A brief discussion about the four basic process activities.The process activities
Requirements EngineeringSoftware specification or requirements engineering is the process of understanding and defining what services are required and identifying the constraints on these services. Requirements engineering processes ensure your software will meet the user expectations, and end up with a high-quality software. It’s a critical stage of the software process as errors at this stage will reflect later on the next stages, which definitely will cause you higher costs. At the end of this stage, a requirements document that specifies the requirements will be produced and validated with the stockholders. There are four main activities (or sub-activities) of requirements engineering:
Of course, the activities in the requirements process are not simply executed in a strict sequence, but, they are interleaved. For example, analysis activity continues during the specification as new requirements come to light.
Software Design And ImplementationThe implementation phase is the process of converting a system specification into an executable system. If an incremental approach is used, it may also involve refinement of the software specification. A software design is a description of the structure of the software to be implemented, data models, interfaces between system components, and maybe the algorithms used. The software designers develop the software design iteratively; they add formality and detail and correct the design as they develop their design. Here’s an abstract model of the design process showing the inputs, activities, and documents to be produced as output. The software design process — From Software Engineering, 9th edition, Chapter 2, by Ian SommervilleThe diagram suggests that the stages of the design process are sequential. In fact, they are interleaved. Feedback from one stage to another and rework can’t be avoided in any design process. These activities can vary depending on the type of the system that needs to be developed. We’ve shown four main activities that may be part of the design process for information systems, and they are:
These activities lead to a set of design outputs. The detail and representation vary based on the system being developed. For example, in critical systems, detailed design documents giving a precise and accurate description of the system must be produced. These outputs may be graphical models of the system, and in many cases, automatically generate code from these models. Software Verification And ValidationSoftware validation or, more generally, verification and validation (V&V) is intended to show that a system both conforms to its specification and that it meets the expectations of the customer. Validation may also involve checking processes, such as inspections or reviews at each stage of the software process, from defining the requirements to the software development. Testing, where the system is executed using simulated test data, is an important validation technique. The stages of testing — From Software Engineering, 9th edition, Chapter 2, by Ian SommervilleTesting has three main stages:
Normally, the component development and testing processes are interleaved. Programmers tend o make up their own test data and incrementally test the code as it’s developed. In some other cases, tests are developed along with the requirements before the development starts. This helps the testers and developers to understand the requirements and reveals requirements problems. When a plan-driven software process is used, testing is driven by a set of test plans, which are created from the system specification and design. How the test plans are the link between each phase of the development life cycle and its associated phase of testing can be demonstrated by a software process model called “V-model”. Testing phases in a plan-driven software process — From Software Engineering, 9th edition, Chapter 2, by Ian SommervilleSoftware MaintenanceRequirements are always changing, even after the system has been put into its operating environment. The flexibility of software systems is one of the main reasons why software is being used in large, complex systems. Historically, there has always been a split between the process of software development and the process of software evolution (software maintenance). However, this distinction is increasingly irrelevant, and it makes much more sense to see development and maintenance as a continuum. Rather than two separate processes, it is more realistic to think of software engineering as an evolutionary process where software is continually changed over its lifetime in response to changing requirements and customer needs. What are the activities included in requirement engineering process?Requirements Engineering Process consists of the following main activities: Requirements elicitation. Requirements specification. Requirements verification and validation.
What is requirement engineering process in software engineering?Requirements Engineering (RE) determines the requirements of software according to the needs of customers. Requirements engineering process includes requirements elicitation, requirements modeling, requirements analysis, requirements verification & validation, and requirements management.
Which of these is not an activity of Requirement Analysis and specification?Traceability is not considered in Requirement Analysis.
How many steps are include in requirement engineering process?The process of requirements engineering happens in five steps.
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