No, he asked him to do 80% of what he would normally do (something like 95%) because the last 20% usually takes the same amount of the effort. Development exam

No, he asked him to do 80% of what he would normally do (something like 95%) because the last 20% usually takes the same amount of the effort. Development example: cover 80% of the possible file types an application might need to ingest. If users start asking for one of the 20% of filetypes then you can add said filetype later on. Mowing the lawn: it's fine to skip the absolute edges of the lawn. You can come back with a strimmer later on to tidy up.