# Context Software systems are composed of one or more software architectural styles. These styles define the usage patterns of a programmer in order to develop a complex project. These architectural styles are required to analyze for pattern similarity in the structure of multiple groups of projects. The researcher can apply different types of data mining algorithms to analyze the software projects through architectural styles used. The dataset is obtained from an online questionnaire delivered to the world 's best academic and software industry. # Content The content of this dataset are multiple architectural styles utilized by the system. He attributes are Repository, Client Server, Abstract Machine,Object Oriented,Function Oriented,Event Driven,Layered, Pipes & Filters, Data centeric, Blackboard, Rule Based, Publish Subscribe, Asynchronous Messaging, Plug-ins, Microkernel, Peer-to-Peer, Domain Driven, Shared Nothing. # Acknowledgements Thanks to my honorable teacher Prof.Dr Usman Qamar for guiding me to accomplish this wonderful task. # Inspiration The dataset is capable of updating and refinements.Any researcher ,who want to contribute ,plz feel free to ask.