10. The system of claim 9 , wherein said product is a software application product, wherein to obtain, said programmed processor is further configured to: store, at the memory storage device, features data relating to said software application, the feature data spanning at least one or more software application versions released over time; automatically extract said stored feature related data of said product, said stored feature data comprising one or more of: an application description and version release logs relating to said released software application product versions; and implement natural language processing (NLP) applied to said application description and version release logs to identify said one or more structured features, said structured features comprising: umbrella features (UF) and low-level features each release version introduces, improves or deletes.
10. The system of claim 9 , wherein said product is a software application product, wherein to obtain, said programmed processor is further configured to: store, at the memory storage device, features data relating to said software application, the feature data spanning at least one or more software application versions released over time; automatically extract said stored feature related data of said product, said stored feature data comprising one or more of: an application description and version release logs relating to said released software application product versions; and implement natural language processing (NLP) applied to said application description and version release logs to identify said one or more structured features, said structured features comprising: umbrella features (UF) and low-level features each release version introduces, improves or deletes. 11. The system of claim 10 , wherein to build said behavior evolution model, said programmed processor is further configured to: utilize description information and structure of a source code of said application to evaluate or refine or both evaluate and refine, the identified one or more structured features.