In maintenance field, prognostic is recognized as a key feature as the estimation of the remaining useful life of an equipment allows avoiding inopportune maintenance spending. However, it can be difficult to define and implement an adequate and efficient prognostic tool that includes the inherent uncertainty of the prognostic process. Within this frame, neuro-fuzzy systems are well suited for ...

The Unified Modeling Language has become a widespread notation for conceptual modeling, and it currently provides a number of extensibility mechanisms to tailor it to specialized modeling issues. Some extensions have been proposed to extend the UML for fuzzy modeling, but without explicitly considering strict additivity and semantic compatibility with the original specification. In this paper, ...

In this article the author presents JFK, which stands for Java Fuzzy Kit. JFK is an Application Programming Interface (API) that complies with both, a general structure of a fuzzy rule base and the necessary processing to compute the generalized principle of extension. A recurrent structure is found for a class of fuzzy expert systems, known as the Mamdani model. This leads to claim that a desi...

Effective software effort estimation is one of the biggest challenges in software engineering. One of these challenges occurs when it is required to estimate software effort in the early stages of the software life cycle, as software requirements in this stage are usually incomplete. As Unified Modeling Language (UML) model became more prominent in software requirements and design processes, so...

Database applications tend toward getting more versatile and broader to comply with the expansion of various organizations. However, naïve users usually suffer from accessing data arbitrarily by using formal query languages. Therefore, we believe that accessing databases using natural language constructs will become a popular interface in the future. The concept of Object-Oriented modeling make...

Fuzzy theory is suitable to capture and analyze the informal requirements that are imprecise in nature, meanwhile, XML is emerging as one of the dominant data formats for data processing on the internet. In this paper, we have developed a fuzzy object-oriented modeling technique (FOOM) schema based on XML to model requirements specifications and incorporated the notion of stereotype to facilita...

Geospatial data has become an integral part of many decision making processes specially related to socio-economic development. The geospatial information are often stored, maintained and processed by various diverse organizations in proprietary GIS systems. With increasing use in Internet and web services on line data sharing and accession has increased. Thus the major bottlenecks of integratin...