Operations Management Case Study Ericsson
Ericsson is one of the main worldwide telecommunication company offering products and services for mobile phones, multimedia and network solutions. ( (Petersen & Wohlin, 2010). It appears that most of the researches and theories are based on arguments against the waterfall approach with little empirical evidence. However, a research by Petersen, Wohlin, & Baca, (2009) tried to address this issue of existing literature that is more on personal views and experiences but not on empirical evidences. This research used a case study approach on the guidelines of Yin(2009) on the company Ericsson AB, an ISO(International organization for standardization) certified company for telecommunication in Sweden, for identifying issues in waterfall model in large scale development used at the company by comparing it with what was stated in the literature. 4.1.2 The Traditional Model Used 8 Figure 4.1- Model used at Ericsson (Petersen, Wohlin, & Baca, 2009) (Waterfall model used at the site) …show more content…
The requirements were stored in requirement repository and the project was finished when the product was released after one or two years (Petersen & Wohlin, 2010). After each phase the requirement documents have to pass through ‘Quality door checklist’ as shown above. These phases were the same used in the waterfall approach such as requirements, design and implementation, testing, release and maintenance but the difference was the documents had to pass through a quality check identified as a stage gate model after every phase. This however caused certain
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