What Is Modifiability?

Which one is not a functional requirement?

A non-functional requirement defines the performance attribute of a software system.

Types of Non-functional requirement are Scalability Capacity, Availability, Reliability, Recoverability, Data Integrity, etc.

Example of Non Functional Requirement is Employees never allowed to update their salary information..

What means software architecture?

A software architecture is a description of the subsystems and. components of a software system and the relationships between. them. ∎ Subsystems and components are typically specified in different.

Does every software project need testers?

While all projects will benefit from testing, some projects may not require independent test staff to succeed. … The answer depends on the size and context of the project, the risks, the development methodology, the skill and experience of the developers, and other factors.

What is the importance of software architecture?

Communication among stakeholders. Software architecture represents a common abstraction of a system that most if not all of the system’s stakeholders can use as a basis for mutual understanding, negotiation, consensus, and communication. Early design decisions.

Which one of the following model is not suitable for accommodating any change?

Discussion ForumQue.Which one of the following models is not suitable for accommodating any change?b.Prototyping Modelc.RAD Modeld.Waterfall ModelAnswer:Waterfall Model1 more row•May 18, 2020

What makes a good architecture?

Architectures must have both form and function and it is a good test of an architecture to measure its elegance. An architecture that is well designed will tend to be elegant and have a simplicity of form that will be obvious to those that take the time study it.

Do we need testers in agile?

You don’t need a tester if you’re not Agile Yet I’m having a hard time to qualify such a setting as “Agile”: Agile is about focusing on value, on the user and on the product. While the waterfall tester helps making sure the project is not a failure, the Agile tester helps a great product become an awesome one!

Why are quality attributes important?

Quality attribute requirements such as those for performance, security, modifiability, reliability, and usability have a significant influence on the software architecture of a system. Architects need to understand their designs in terms of quality attributes.

What is a quality attribute?

A quality attribute (QA) is a measurable or testable property of a system that is used to indicate how well the system satisfies the needs of its stakeholders. In other words, a quality attribute (aka as Non-Functional Requirements) is what makes a system good with respect to a specific stakeholder.

What can be stated with regards to performance?

Discussion ForumQue.What can be stated with regards to performance?a.Performance is an example of architectural and non architectural dependenciesb.Performance depends partially on how much communication is necessary between the componentsc.All of the mentionedd.None of the mentioned1 more row

Do we need QA?

QA-based testing is important, whether implemented as a support role for development teams or as an independent entity. It’s possible, though, that you only need a small team of testers, or a single tester per team.

What are the most important aspects of quality software?

The CISQ software quality model defines four important indicators of software quality:Reliability.Performance efficiency.Security.Maintainability.

What is an example of attribute?

An attribute is defined as a quality or characteristic of a person, place, or thing. Real life individuals and fictional characters possess various attributes. For example, someone might be labeled beautiful, charming, funny, or intelligent.

What quality attribute factors are applicable on software architecture?

Quality Attributes:System Qualities: availability, modifiability, performance, security, testability, usability, others.Business Qualities: time to market, cost and benefit, product lifetime, target market, roll-out schedule, integration, others.Architectural Qualities: conceptual integrity, correctness and completeness.

What is a good software architecture?

Accountable: good software architecture makes each team hold accountability for its corresponding business objective. … Autonomous: good software architecture should allow each team to move on largely independently without being blocked by others too frequently.

Why developers are not good testers?

Your developers, as good as they may be, write bugs in their software. They can’t find their own bugs. Even if they go testing each other’s code, they don’t have the kind of software breaking thinking & skills that QA do and just won’t find as many bugs.

What are the internal attribute of good software?

External Quality Characteristics: Correctness, Usability, Efficiency, Reliability, Integrity, Adaptability, Accuracy, and Robustness. Internal Quality Characteristics: Maintainability, Flexibility, Portability, Re-usability, Readability, Testability, and Understandability.

What is a quality attribute scenario?

A quality attribute scenario is a quality-attribute-specific requirement. It consists of six parts. · Source of stimulus. This is some entity (a human, a computer system, or any other actuator) that generated the stimulus.

What are software quality attributes?

Software Quality Attributes are: Correctness, Reliability, Adequacy, Learnability, Robustness, Maintainability, Readability, Extensibility, Testability, Efficiency, Portability. … The behavior over time for the fulfillment of a given specification depends on the reliability of the software system.

What is the main technique for achieving portable software?

The main technique for achieving portable software is to isolate system dependencies, which introduces overhead into the system’s execution, typically as process or procedure boundaries, and this hurts performance.

What is the role of software architecture?

Software Architects design and develop software systems and applications. … They act as high-level decision makers in the process, determining everything from design choices to technical standards, such as platforms and coding standards.