class BusinessModel:
    """
A business model is the framework and strategy through which a company generates revenue and creates value for its customers. The specific characteristics of a business model will depend on the industry, market, and target audience of the company.

Some common features of a business model include:

Value proposition: the unique benefit that the company offers to its customers
Revenue streams: the sources of revenue that the company relies on to sustain its operations
Cost structure: the expenses and investments required to develop, produce, and deliver the company's products or services
Key partnerships: the collaborations and relationships with other companies or organizations that are critical to the success of the business
Channels: the methods through which the company reaches its target customers and delivers its products or services
Customer segments: the specific groups of customers that the company aims to serve and satisfy
Key activities: the core operations and processes that the company performs to deliver its products or services    
    """
    def __init__(self, value_proposition, revenue_streams, cost_structure, key_partnerships, channels, customer_segments, key_activities):
        self.value_proposition = value_proposition
        self.revenue_streams = revenue_streams
        self.cost_structure = cost_structure
        self.key_partnerships = key_partnerships
        self.channels = channels
        self.customer_segments = customer_segments
        self.key_activities = key_activities
        
    def adjust_value_proposition(self, new_proposition):
        self.value_proposition = new_proposition
        
    def adjust_revenue_streams(self, new_streams):
        self.revenue_streams = new_streams
        
    def adjust_cost_structure(self, new_structure):
        self.cost_structure = new_structure
        
    def adjust_key_partnerships(self, new_partnerships):
        self.key_partnerships = new_partnerships
        
    def adjust_channels(self, new_channels):
        self.channels = new_channels
        
    def adjust_customer_segments(self, new_segments):
        self.customer_segments = new_segments
        
    def adjust_key_activities(self, new_activities):
        self.key_activities = new_activities
