With the new trend of shifting from traditional architectures towards Service-Oriented Architectures (SOAs) today, the need to model integration becomes increasingly apparent. This study analyzes two main approaches for SOA integration modeling: using Unified Modeling Language (UML) and Service-oriented architecture Modeling Language (SoaML); having as a fundament a literature study, an evaluation between the two is made, based on a defined set of criteria. The results show where SoaML brings added advantages to UML and why it may be worth being used on a large scale. Abstract-With the new trend of shifting from traditional architectures towards Service-Oriented Architectures (SOAs) today, the need to model integration becomes increasingly apparent. This study analyzes two main approaches for SOA integration modeling: using Unified Modeling Language (UML) and Service-oriented architecture Modeling Language (SoaML); having as a fundament a literature study, an evaluation between the two is made, based on a defined set of criteria. The results show where SoaML brings added advantages to UML and why it may be worth being used on a large scale.