This should be about 600 words with at least 3 APA7 references

This should be about 600 words with at least 3 APA7 references. 

Free of grammatical errors. I am still looking for some luck on this page. Most of my answers could have been a lot better, so don't pick this up if you can't answer. I will reject any mediocre solutions right away. 

Questions

• Discuss the advantages and disadvantages of the waterfall approach to system development.
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• What are the pros and cons in reference to an organization’s buy versus build decision? Explain why you would choose one method over the other.