Chapter 1. A framework to improve performance of e-commerce websites -- Chapter 2. Identification of user preference for multi-criteria reporting in business intelligence: a case study on banking business -- Chapter 3. Botnet threats to E-commerce web applications and their detection -- Chapter 4. Secure framework for E-commerce applications in cloud environment -- Chapter 5. E-commerce business model -- Chapter 6. Search optimization to select an item across E-commerce platforms: app development quickcompare -- Chapter 7. E-commerce and its software -- Chapter 8. Security issues in E-commerce -- Chapter 9. Secure payment modes technology for E-commerce applications -- Chapter 10. Design methodology for effective user interface design for E-commerce applications -- Chapter 11. Electronic commerce and decision support systems: theories and applications -- Chapter 12. Application of opinion mining in E-commerce -- Chapter 13. Applications of social graphs: author, email, telephone using graph mining techniques.