For start-ups, the need to scale up can be costly; discuss how business model design can help overcome this. In addition, discuss the value of developing a ‘cell phone monthly subscription’ business model. Provide three examples of companies that use the “monthly subscription” business model. Please make sure that the coverage is beyond all textual descriptions. Please include as many technical specifics as possible. For examples: Diagrams, flow charts, management designs, analytical metrics, parameters, or other computing-related details would be beneficial. Algorithms and system specs would be appreciated. Text must be 400 words not including references.