IT systems should be designed as “black boxes” to reduce interdependencies so that a change or a failure in one component does not cascade to other components. The more loosely system components are coupled, the larger they scale.
Baron, Joe; Baz, Hisham; Bixler, Tim; Gaut, Biff; Kelly, Kevin E.; Senior, Sean; Stamper, John. AWS Certified Solutions Architect Official Study Guide: Associate Exam (Kindle Locations 10612-10614). Wiley. Kindle Edition.
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