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Different methods are known for interpolating spatial data. Introduced a few years ago, the initial version of the Most Probable Precipitation Method (MPPM) proved to be a valuable competitor against the Thiessen Polygons Method, Inverse Distance Weighting and kriging for estimating the regional trend of precipitation series. Climate Analyzer, introduced here, is a user-friendly toolkit written in Matlab, which implements the initial and modified version of MPPM and new selection criteria of the series that participate in estimating the regional precipitation series. The software provides the graphical output of the estimated regional series, the modeling errors and the comparisons of the results for different segmentations of the time interval used in modeling. This article contains the description of Climate Analyzer, accompanied by a case study to exemplify its capabilities.

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In the context of climate change, this article tries to answer the question of whether a correlation exists between the precipitation and temperature series at a regional scale in Dobrogea, Romania. Six sets of time series are used for this aim, each of them containing ten series—precipitation and temperatures—recorded at the same period at the same hydro-meteorological stations. The existence of a monotonic trend was first assessed for each individual series. Then, the Regional time series (RTS) (one for a set of series) were built and the Mann–Kendall test was employed to test the existence of a monotonic trend for RTSs. In an affirmative case, Sen’s method was employed to determine the slope of the linear trend. Finally, nonparametric trend tests were utilized to verify if there was a correlation between the six RTSs. This study resulted in the fact that the only RTS presenting an increasing trend was that of minimum temperatures, and there was a weak correlation between the RTS of minimum precipitations and maximum temperatures.

Identifying security properties raises a laborious analysis within the design of a software system. Some tools help model security concepts, others test and validate results. The article introduces an introduction to the software used to design security systems, especially in the sphere of hierarchical security modelling encountered in organizations. An analysis of the design and modelling tools from the perspective of security requirements and the adjacent principles of interest is presented. As there is no clear separation between design errors and security deficiencies, there are some design practices that lead to a security breach. Obviously, some design methods generate more insecurity than others, which is why the tools are presented from the perspective of vulnerability modelling, cryptography, security protocols, and risk management. The use of security-oriented tools guarantees the availability of functionality, does not guarantee by this functionality the security itself, because they are specialized in certain areas of application and abstraction The aim of this paper is the ontology development for multiple personalized security system approaches in order to adapt a suitable domain ontology according to hierarchical security systems policies and to satisfy the future requirements of users and promote the use value. To answer at “How efficiency is the proposed Hierarchical Ontology?”, a domain ontology model is designed and a methodology for domain ontology adaptation is developed. Subsequently, a domain ontology adaptation system is implemented based on organizational security culture key factors. The article ends with the presentation of a few questions that an instrument designed for the hierarchical security of an organization needs to answer.