No doubt software plays an important role in imp rovement of our lives. Great demand of software makes software architecture more co mplex. Flaws in any software have direct impact on diverse fields of life (such as business, science, engineering etc). The main reason of any software failure is due to poor software architecture or quality attributes. This paper focuses on factors that affect the quality of software architectures and highlighted the major reason of the defects through

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... re and survey. In the light of this survey a technique is proposed to improve the quality o f any software architecture. The proposed architecture is Enhanced-Pattern driven architecture (EPDA). This architecture focuses on the improvement of design phase in any architecture. Th is will also help in resolving lots of problems wh ich arise due to usage of different traditional architectural styles. Engr. Muhammad Fahad Khan: is a PhD Scholar in the Department of Co mputer Engineering at University of Engineering and Technology Taxila, Pakistan. He has received his Master degree in Co mputer engineering fro m university of Engineering and Technology Taxila, Pakistan in February, 2010. He graduated fro m University of Engineering and Technology Taxila in Software Engineering in September 2007. His areas of interest are Video Su mmarizat ion, Co mputer v ision, Software Designing, Design Patterns, Software Requirements Analysis and Mobile application development.