During the years, softgoals have enjoyed much attention in the requirement engineering (RE) community for handling non-functional requirements (NFRs). As pointed out by RE researchers in recent years, softgoal may not be the right concept for non-functional requirements since it also captures early functional requirements (FRs) that are vaguely defined, e.g., “increase profit”. Alternatively, q...

The main agenda of Requirements Engineering (RE) is the development of tools, techniques and languages for the elicitation, specification, negotiation, and validation of software requirements. However, this development has traditionally been focused on functional requirements (FRs), rather than non-functional requirements (NFRs). Consequently, NFR approaches developed over the years have been f...

Despite the importance of capturing a precise and complete set of requirements in the requirements engineering stage, there are few tools that adequately support requirements analysis in the process of capturing quality related requirements (non-functional requirements). This paper presents ElicitO, a requirements elicitation tool aimed at empowering requirements analysts with a knowledge repos...

Requirements speci cations for high assurance secure systems are rare in the open literature. This paper presents a case study in the development of a requirements document for a multilevel secure system that must meet stringent assurance and evaluation requirements. The system is secure, yet combines popular commercial components with specialized high assurance ones. Functional and non-functio...

Requirements specifications for high assurance secure systems are rare in the open literature. This paper examines the development of a requirements document for a multilevel secure system that must meet stringent assurance and evaluation requirements. The system is designed to be secure, yet combines popular commercial components with specialized high assurance ones. Functional and non-functio...

The goal oriented requirements analysis approaches have been introduced to compare non-functional requirements (NFR), such as safety and security. Several approaches to manage goal attributes have also been proposed to evaluate NFR goals quantitatively. In this paper, the quantitative weighted softgoal is proposed based on the Softgoal Interdependency Graphs (SIG) that helps engineers evaluate ...

Requirements traceability helps to ensure that a requirements specification is aligned with the intended stakeholders’ needs. Such alignment should involve the consideration of why such needs arise, in terms of what problems the stakeholders are faced with, and what kinds of software system may help alleviate or eliminate the problems. However, little work can be found on requirements traceabil...

NFRs are important since the system architecture greatly depends on the NFRs [20]. Mostly NFR Literature has considered only for key challenges and issues related to NFR. In context of such a need a roadmap for important issues is required. In this paper survey has been presented on interesting ongoing work in the field of non functional requirements and tried to figure out the approaches and m...