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...

Wireless sensor networks are being increasingly used in several application areas, particularly to collect data and monitor physical processes. Non-functional requirements, like reliability, security or availability, are often important and must be accounted for in the application development. For that purpose, there is a large body of knowledge on dependability techniques for distributed syste...

Software quality requirements are essential part for the success of software development. Defined and guaranteed quality in software development requires identifying, refining, and predicting quality properties by appropriate means. Goal models of goal oriented requirements engineering (GORE) and quality models are useful for modelling of functional goals as well as for quality goals. Once the ...

Numerous monumental changes have been made in the existing web service selection to provide quality of services. The quality of service is a major bottle neck in the recent development. Hitherto various QoS based Web Service Selection Techniques exist. But these techniques lacks in functional and non-functional attributes. This paper consists with the following tasks; segregate various QoS base...

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...

Due to the superiority of functional requirements of equipment and systems over human requirements in the field of architectural and environmental design of industrial buildings, users have to adapt themselves to the conditions which might be followed by imposed biological and psychological pressures. The present study examines the components and environmental parameters influenced by building ...