Abstract. Code "clones" are similar segments of code that are frequently introduced by "scavenging" existing code, that is, reusing code by copying it and adapting it for a new use. In order to scavenge the code, the developer must be aware of it already, or must find it. Little is known about how tools--particularly search tools--impact the clone construction process, nor how developers use them for this purpose. This paper lists five outstanding research questions in this area and proposes sketches of designs for five empirical studies that might be conducted to help shed light on those questions. Keywords. code clone, clone detector, code search, reuse, scavenging, empirical study
Thomas R. Dean, Massimiliano Di Penta, Kostas Kont