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Since the internal audit of the company is essential to supply information needed for the effective management and improvement of the competitive position, the purpose of this paper is to introduce an innovative strategic management tool for the assessment of internal organizational factors that overcomes some limitations of traditional appraisal methods, and also enables more comprehensive evaluation of the company?s internal environment. Although the classical Internal Factor Evaluation matrix (IFE matrix) is widely used, it has some constraints, such are lack of considering the ambiguity and vagueness of the internal factors. An original method - FSIF (Fuzzy Synthesis of Internal Factors) represents a systematic approach that incorporates fuzzy logic in order to better describe real situation. Proposed FSIF method well serves the needs of modern Management information system because it provides monitoring of internal development of an organization through time and also comparing different organizations taking into account various factors and weights.

The measurement and evaluation of R&D performance has always posed a very challenging task to managers, primarily because of the long gestation period and difficulties in identifying a tangible output. According to Wang and Hwang (2007) AbstractThis paper has twofold purpose. Firstly, an assessment method aimed to evaluate R&D strategic performance indicators is introduced. The proposed framework is based on fuzzy set theory which represents an adequate tool for quantitatively describing the vague and ambiguous nature of the R&D function. The second purpose of the paper is to analyze relevant R&D performance indicators in Magneti Marelli S.p.A. Serbia, a leading supplier in Serbian automotive industry. Specific findings of this empirical analysis are discussed and suggestions for further research are provided.

Odluke povezane sa nabavkom i kontrolom zaliha u procesu planiranja industrijske proizvodnje se često donose na osnovu nejasnih i nepreciznih informacija o faktorima koji utiču na inventarske troškove. U cilju minimiziranja ukupnih očekivanih inventarskih troškova i pravovremenog zadovoljenja potražnje na tržištu u uslovima neizvesnosti i nesigurnosti, klasične metodologije inventarske kontrole se mogu nadograditi sistemima kontrole baziranim na fazi logici. U ovom radu je kao podesan okvir za tretiranje nejasnih stanja prilikom donošenja inventarskih odluka predstavljena upotreba lingvističkih fazi promenljivih koje se u modelu fazifikacije i defazifikacije obrađuju putem fazi ako-onda pravila odlučivanja. Predloženi fazi model sadrži dve ulazne veličine: zahtevi za proizvodom i količina raspoloživih delova potrebnih za proizvodnju tog proizvoda. Ove ulazne promenljive su predstavljene fazi skupovima koji sadrže pet jezičkih termina. Pored ulaznih promenljivih, model uključuje obradu podataka pomoću ako-onda pravila odlučivanja kao i jednu izlaznu veličinuinventarsku akciju koja sugeriše dodatno naručivanje delova, smanjivanje postojećih delova ili ne preduzimanje inventarske akcije. Izlazna promenljiva je fazi skup koji sadrži sedam jezičkih termina. Sve lingvističke promenljive su predstavljene fazi trougaonim brojevima i delovima fazi trapezoidnih brojeva. Za defazifikaciju (u cilju dobijanja "običnog" broja) korišćen je metod aritmetičke sredine maksimalnog intervala izlazne veličine (MMM). Na kraju, izlazna veličina (čija je vrednost data u procentima) se povezuje sa odgovarajućom inventarskom akcijom.

Introducing basic mathematical concepts is often seen as a challenge for preschool teachers but with the improvement of multimedia technologies, potential difficulties can be overcome and the quality of educational activities can be significantly improved. In that sense, the availability of a non-commercial, dynamic, open-source mathematical software package – GeoGebra can encourage preschool teachers to explore a wide range of mathematical concepts with children through an integrated approach to learning. This paper presents the procedure of creating a dynamic illustration in GeoGebra as a tool in the process of developing the mathematical concept of the cardinality of a set in children. The case study was conducted in the preschool institution “Svitac” in Sremska Kamenica. Anecdotal records showed that introducing carefully designed application games (activities in GeoGebra), with an emphasis on analyzing, concluding, creative and critical thinking, to 4-6 year-olds represents an effective way to learn new concepts about the number and properties of the elements of a set.