Companies in every sector are asking the same question: “What do my customers want?” When one of your teammates encounters a problem, they can review the buyer persona cards you've created, or refer to your project's persona when they need help making a decision based on client interests. User personas will assist you in setting your customer preferences and goals.
CRM is a customer-oriented business strategy where customer data is collected and used (for the benefit of both business and customers) using information technology. CRM is Customer Relationship Management. CRM system helps you build and manage strong relationships with your leads, opportunity, and existing customers. CRM software supports such efforts by increasing tracking, scaling, communicating, and developing such relationships.
Persona is a fictional character who shows common behaviors such as purchasing decisions, product use, customer contact points preference, lifestyle, and tastes in product/service use, etc. These kinds of specific behavior help to make your marketing process.
SaaS (Software as a Service) is a software service that enables end users to access and use applications on remote servers. Generally, CRM (customer relationship management), email applications, calendar management applications and project management programs (e.g. GitHub) can be mentioned as examples of these applications.