Requirements for a COTS software component: A case study

Autor: Ljerka Beus-Dukic, Andy Wellings
Rok vydání: 1998
Předmět:
Zdroj: Requirements Engineering. 3:115-120
ISSN: 1432-010X
0947-3602
DOI: 10.1007/bf02919971
Popis: The goal of the GUARDS project is to design and develop a generic fault-tolerant computer architecture that can be built from predefined standardised components. The architecture favours the use of commercial off-the-shelf (COTS) hardware and software components. However, the assessment and selection of COTS components is a non-trivial task as it requires balancing a myriad of requirements from end-users and the preliminary architecture design. In this paper, we present the requirements and assessment criteria for a specific COTS software component, the operating system kernel. As an interface specification constitutes a major compatibility criterion for the selection of COTS components in GUARDS, a particular emphasis is placed on operating system conformance to the POSIX 1003.1 standard. We discuss the general lessons learned from the assessment process and raise a number of questions relevant to the assessment of any COTS software component.
Databáze: OpenAIRE