$\_\_\_\_\_\_\_\_\_$ help businesses become more efficient by integrating functional business processes into a single information system that spans all business areas.

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Part $1$

A$.$

Quality control applications$($QCA$)$

B$.$

Customer service applications$($CSA$)$

C$.$

Human resource systems$($HRS$)$

D$.$

Data display systems$($DDS$)$

E$.$

Enterprise resource planning$($ERP$)$ systems