Informatika No. 40 – 2012 . No. 40 ISSN 1419-2527 (Print) ISSN 2559-9593 (Online) informatika@gdf.hu . . GÉZA BOGNÁR FOREWORD page 2 MIROSLAV ROZLOŽNÍK DO WE ALWAYS NEED TO SOLVE OUR PROBLEMS EXACTLY? page 3 SÁNDOR KOPÁCSI – JÁNOS NACSA – ÁDÁM KISARI SYNCHRONIZED ROBOT CONTROL FOR INCREMENTAL SHEET FORMING IN THE CYBERSPACE page 8 MIKLÓS BIRÓ HISTORICAL PERSPECTIVE ON THE STATE OF SOFTWARE PROCESS IMPROVEMENT page 14 ELEMÉR KÁROLY NAGY INTRODUCTION TO JOINABLE SCHEDULES page 19 J. BERKE – V. KOZMA-BOGNÁR – L. D. KOVÁTS – P. BURAI – T. TOMOR – T. NAGY – T. NÉMETH APPLIED INFORMATION TECHNOLOGY ON REMOTE SENSING DATA INVESTIGATION OF RED MUD CATASTROPHE page 24 PETÁKNÉ ANIKÓ BALOGH BENCHMARKING TOOLS ANALYSING THE ICT SECTOR FOCUSING ON HUNGARY page 29 ZOLTÁN VARGA – DÁNIEL PÁLOSI ECONOMIC VALUE OF HIGHER EDUCATION page 34 PAMULÁNÉ ÉVA BORBÉLY TURNING POINT IN COMPUTER INDUSTRY: IBM APPEARS ON THE MARKET page 39 GERGELY ENDRE TÓTH – GÁBOR FODOR – RAYMOND PARDEDE – LORÁND LEHEL TÓTH – GYÖRGY ANDRÁS JENEY – GÁBOR HOSSZÚ SURVEY OF THE CLUSTERING METHODS page 45 .