Final answer:
The cornerstone that emphasizes the importance of positive communication by focusing on capabilities before limitations is Transparency. It plays a crucial role in creating and maintaining trust, ensuring clear and honest interactions with customers.
Step-by-step explanation:
The cornerstone that reflects the value of communication to the customer, focusing on what can be done rather than what cannot, is Transparency. Transparency ensures that communication is clear, honest, and forthright, allowing for the establishment and maintenance of positive relationships with customers. Providing information about services that can be delivered before discussing limitations or challenges adheres to the value of transparency, which is essential for building trust and ensuring that customers are well-informed.
In practice, this means offering clean, accurate, and precise work and documentation, and always being open about the capabilities and services one can offer. It is about giving customers the information they need to make informed decisions, emphasizing affirmative solutions and options available to them.