12fab62417720fa688488d 20210506221837593 ijaas:ijaas ch.ta.yeh@gmail.com WEB-FORM International Journal of ADVANCED AND APPLIED SCIENCES Int. j. adv. appl. sci. 2313626X 23133724 8 2021 8 2021 8 8 College of Computer Science and Engineering, University of Ha’il, Ha’il, Saudi Arabia Jalawi Sulaiman Alshudukhi Cloud computing exploits the software as a service model with distributed and interoperable services for the composition of software systems. Cloud-enabled systems that demand elasticity, scalability, and composition of services, etc., there is a need to capitalize on reusable solutions exploiting patterns and styles to architect cloud-based software. The objective of this research is to build and exploit a catalog of patterns that support reusable design knowledge to develop cloud-based architectures. We propose a three-step process with (i) pattern discovery, (ii) pattern documentation (building the catalog), and finally, (iii) pattern application (exploiting the catalog) to enable pattern-based architecting of cloud systems. We discovered seven patterns as generic and reusable solutions and demonstrate the pattern-driven architecture of the ECMC case study. Results suggest that pattern-based architecting enables the reuse of generic design decisions but lacks fine-grained architectural design. The solution is the first attempt towards establishing the catalog as a repository of patterns for architecture-based development of cloud systems. 8 2021 8 2021 9 19 10.21833/ijaas-crossmark www.science-gate.com false IASE www.science-gate.com 10.21833/ijaas.2021.08.002 http://www.science-gate.com/IJAAS/2021/V8I8/1021833ijaas202108002.html http://science-gate.com/IJAAS/Articles/2021/2021-8-8/1021833ijaas202108002.pdf