Through soft modeling of data collected from a survey of 83 Information Systems (IS) organizations in Singapore, this paper develops and tests a Partial Least Square (PLS) model that determines the impact of user knowledge, application quality, and maintenance control procedures on maintainer effectiveness. It was found that application quality has a very strong influence on maintainer effectiv...

Maintenance of a sensor part typically means renewal of the sensor in regular intervals or replacing the malfunctioning sensor. However optimal timing of the replacement can reduce maintenance costs. The aim of this article is to suggest a predictive maintenance strategy for sensors using condition monitoring and early failure detection based on their own collected measurements. Three different...

Maintenance of critical or/complex systems has recently moved from traditional preventive maintenance to Condition Based Maintenance (CBM) exploiting the advances both in hardware (sensors / DAQ cards, etc.) and in software (sophisticated algorithms blending together the state of the art in signal processing and pattern analysis). Along this path, Environmental Control Systems and other critica...

The maintenance of the domain ontology or a knowledge model after the appearance of changes in the studied domain is an essential stage. Several studies provide methodologies for the maintenance of ontology but only some of them deal with ontologies that are created from texts. Text mining techniques provide good results when the processing of texts is done for the purpose of modeling or classi...

The continuous alignment of organizational processes with an organizations’ business strategy is a key factor to its success. This paper reports on the application of the i* framework to support the continuous alignment of corrective software maintenance processes with the strategic goals of a Software Design Maintenance Organization at Ericsson Marconi Spa. Using the i* modeling framework, ali...

Loop-closure detection (LCD) in large non-stationary environments remains an important challenge robotic visual simultaneous localization and mapping (vSLAM). To reduce computational perceptual complexity, it is helpful if a vSLAM system has the ability to perform image change (ICD). Unlike previous applications of ICD, time-critical cannot assume offline background modeling stage, or rely on m...

We examine the problem of weaknesses in frameworks of conceptual modeling for handling certain aspects of the system being modeled. We propose the use of a flow-based modeling methodology at the conceptual level. Specifically, and without loss of generality, we develop a conceptual description that can be used for controlling the maintenance of a physical system, and demonstrate it by applying ...

Several advanced applications of database systems require the modeling, maintenance, and usage of large collections of views. Prime examples include mediator systems that provide access to multiple information sources, data mining and archeology, mobile databases, data warehouses, and decision support systems. Furthermore, some database vendors are considering the maintenance of materialized vi...

The most difficult part of system maintenance is diagnosing failures. System expertise is needed, but manuals cannot cover all the unique situations and in-house experts are difficult to retain because of today’s budgets. The resulting “expertise gap” has led to the development of “intelligent” diagnostic aids to compensate for the missing expertise. The first computer-assisted diagnostic aids ...

Domain-Specific Modeling Languages (DSMLs) are playing an increasingly significant role in software development. By raising the level of abstraction using notations that are representative of a specific domain, DSMLs allow the core essence of a problem to be separated from irrelevant accidental complexities that are typically found at the implementation level in source code. In addition to mode...