Software controls many everyday electronics, like computers and smart phones, and is increasingly embedded in safety-critical systems like medical devices, transportation systems, and autonomous vehicles. Although difficult to detect, software errors can lead to loss of property, or even life.
Every researcher has nightmares about running across prior work that anticipates--or worse, invalidates--their own contributions. A thorough literature survey is essential to getting a good night’s sleep! A careful survey will also allow you to absorb research techniques and ideas from your peers.