Years ago, IT Company Zenithal launched a Human Resources (HR) Management Software, and has delivered it to a dozen small-medium sized companies. HR Management Software (HRMS) is an application that companies keep the essential personal information and leave-time planning of all employees. It also has a basic performance module. HRMS is usually integrated to main ERP software and Active Directory of the companies. Corporate customers of Zenithal are generally happy about the software. However, Zenithal HRMS was not completely designed according to SOA principles, and each installation of the software involved customized integrations. Many services related to software are not exposed to outside. As the new IT manager of Zenithal, you want to re-code the HR Management Software in SOA principles, even in micro-services. However, Zenithal CEO is reluctant about this endeavor. What you tell to CEO to convince him/her