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Scenario-based approaches are often used for Software Requirements Specification (SRS). Since scenarios are usually written in natural language, they may be ambiguous and, sometimes, inaccurate, which impair requirements quality. One of the major factors for this problem is because interactions among scenarios are seldom represented explicitly. As such, the importance of correctness, consistency and...
Determining quality of a conceptual model has always been a challenge for researchers. Various quality attributes and their measures have been proposed in the research. These measures are usually qualitative and lack quantitative aspect which makes it difficult to discuss quality objectively. In our research, we have studied the existing quantitative metrics and have found that many of these metrics...
Cloud computing deals with accessing services and resources in distributed environments needed to perform functions with dynamically changing needs. The cloud provides a virtualization of resources that maintains and manages itself. The DIME Network Architecture was introduced as a new approach to handle dynamic aspects of cloud computing, i.e., self-repairs, auto-scaling, live-migration, end-to-end...
Modeling is the basis for data management of uncertainty. The Specificity in the uncertainty of the data in the k-anonymity privacy protection model is found, namely, its uncertainty is caused by human with generalization, the probability that each instance after generalization is reduced to the original tuple is equal. The past modeling approaches of uncertainty data are not suitable for this kind...
This position paper presents a lightweight approach for knowledge modeling centered around the notion of distinction. Concept models are represented using UML class diagrams. Distinctions between concepts are established by using attributes and stating properties of the attributes using the @L-is calculus on words. This calculus relies on simple laws to manipulate relationships between words. We show...
This paper extends Valiant's work on VP and VNP to the settings in which variables are not multiplicatively commutative and/or associative. Our main result is a theory of completeness for these algebraic worlds. We define analogs of Valiant's classes VP and VNP, as well as of the polynomials permanent and determinant, in these worlds. We then prove that even in a completely relationless world which...
A business viewpoint on the system distinguishes a "source" model and a "target" model. The "source" model must reflect the system (and its environment) that currently exists and is under investigation. Requirements for systems reflect business ownerspsila, managerspsila and userspsila needs related to the "target" model. Consistency between the "source"...
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