Among the existing body of research focused on business models are studies by Osterwalder (2010), Slywotzky (2002), Yamada (2012), and Matsubara (2014). However, these involved the qualitative classification of company business models. This study quantifies business models and uses data analysis to clarify the key factors that change the business model of a company. Moreover, it uses data to analyze business models in the manufacturing industry and proposes an approach to such business models.

In workplaces developing map database for car navigation systems, the issue of specification changes occurs frequently. Geographical conditions, traffic restrictions, and various other conditions differ in each part of the world, making it difficult to identify all specification changes in advance. Moreover, specification changes occurring in one project may affect other projects developed around the same time. This paper looks at how to manage and run software development projects with many specification changes to achieve greater stability. This paper suggests a change point management and solution for determining how to adjust the initial development schedules and allocate development staff each time a specification changes, to ensure the stabilization of the project as a whole.