Johns Hopkins Institutions (JHI), Maryland's largest private employer, employs more than 45,000 full-time staff at Johns Hopkins Hospital and Health System, Johns Hopkins University, and several other hospitals and institutions. To improve data quality and reporting, JHI decided to use a centralized ERP system instead of several different business applications that were not fully integrated. With these different applications it was difficult to get a general idea of JHI's operations and performance. JHI faced technical difficulties in adopting an ERP system. To overcome these challenges, it chose BearingPoint's SAP applications.
IBM Power 570 servers as hardware platform. JHI also decided to use server clusters to make the system more fault tolerant and installed a storage area network (SAN) for high performance. The ERP system now provides a centralized method of gathering information for the entire organization.16
Answer the following questions: 

1. What was the main reason for using an ERP system at JHI? 

2. How has the ERP system that JHI adopted helped overcome the technical challenges? 

3. What has the ERP system achieved in JHI?