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Requirements Trade-offs During UML Design

Publiceringsår: 2004
Språk: Engelska
Sidor: 282-291
Publikation/Tidskrift/Serie: Proceedings 11th Annual IEEE International Conference and Workshop on the Engineering of Computer Based Systems
Dokumenttyp: Konferensbidrag
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.


Designs almost always require trade-offs between competing

design choices to meet pervasive system dependability

requirements (e.g., security, performance and fault tolerance

system goals). In some cases, dependability requirements

are realized by functionality that cross-cuts designs.

Aspect-Oriented Modeling (AOM) methods allow developers

to localize such cross-cutting functionality in design

modeling views called aspects. Aspects can be composed

with other design views to obtain an integrated view of a design.

This paper presents a technique that extends such

methods to cover dependability requirements that are not

directly realized by functional structures in a design. Performance

goals provide examples of such requirements. We

also present a trade-off mechanism to rank feasible solutions

with respect to requirements priorities between different

dependability requirements. The paper applies this

technique to an example that has performance, fault-tolerance,

and security requirements.


  • Computer Science


  • Software Engineering-lup-obsolete

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