Final answer:
The company has several options for real-time system integration software, including designing and building custom software, purchasing pre-built software, or combining both approaches.
Step-by-step explanation:
The options for real-time system integration software in this scenario include:
- Design and build integration software that automates ETL for weekly data transfers: This option involves creating custom software that automates the process of extracting, transforming, and loading data from the purchasing system into the e-commerce system on a weekly basis.
- Buy real-time system integration software from a software provider and implement it: This option involves purchasing pre-built integration software that can facilitate real-time data transfer between the purchasing system and the e-commerce system.
- Two of the above options are correct: In this case, both designing and building integration software and buying pre-built software can be valid choices depending on the specific needs and requirements of the company.