It’s quite right that nobody can be perfect; we can reach up to the limits of perfection because at every instance there is a scope of improvement. So how can one comply with the fact of doing perfect research but we can at least hope to reach the limits of perfection by the indulging exactitude in the content recording, observing facts, analyzing and finally shaping up the study to arrive at some consensus.
Research is a study to observe record and analyze any issue so as to derive a solution/theory/alternative to resolve it properly or to understand the core problem. Research is something that initiates from imperfection and ends up with a solution to that imperfection. It’s a continuous never ending process because the final results can even initiate another research. It is a step by step procedure to reach the final stage: