Improving business processes by applying Lean Six Sigma methodology

Ključna zadaća poduzeća je zadovoljstvo svih dionika i korisnika, a jedan od načina na koji to mogu postići je kontinuiranim poboljšanjem poslovnih procesa. Na raspolaganju je mnoštvo alata, tehnika i metoda kojima se ono postiže. Pristup kojim se rad bavi, Lean Six Sigma (LSS), jest kombinacija Lean proizvodnje i Six Sigme. Uspješna provedba LSS-a ne ovisi o veličini organizacije kao ni o grani poslovanja, već o pravilnoj pripremi organizacijske kulture, usklađivanju metode s poslovnom strategijom te o pravilnoj primjeni tehnika i alata. Primjenom jednog od najučinkovitijih metoda rješavanja problema, DMAIC ciklusa, prvo se identificiraju uzroci problema i njegov opseg, a zatim se, koristeći dostupne alate, pronalaze najefikasnija rješenja te procedure održavanja rješenja. Rezultat su smanjeni troškovi propuštenih poslovnih prilika, gubitci proizvoda, brži procesi, kvalitetniji proizvodi i usluge te povećana produktivnost, što je vidljivo iz konkretnih podataka analiziranih studija slučaja u radu.The key task of the company is the satisfaction of all stakeholders and users, and one of the ways to achieve this is by continuously improving the business process. There is a lot of tools, techniques and methods by which it is achieved. The approach that the paper refers to, Lean Six Sigma (LSS), is a combination of Lean production and Six Sigme. The successful implementation of the LSS does not depend on the size of the organization as well as on the branch of business, but on the proper preparation of organizational culture, the alignment of the method with the business strategy and the proper application of techniques and tools. Using one of the most effective problemsolving methods, the DMAIC cycle first identifies the causes of the problem and its scope, and then, using available tools, finds the most efficient solutions and solution maintenance procedures. The result is reduced costs of missed business opportunities, reduced product losses, faster processes, better products and services, and increased productivity, as can be seen from specific data from case study analysis