Logic Composer is a service that adopts the integration platform as a service (iPaaS) model. Logic Composer connects the backend as a service (BaaS), function as a service (FaaS), and software as a service (SaaS) services provided by the underlying systems to upper-layer business applications. It supports visualized orchestration, scheduling, and service hosting to provide capabilities of API integration, message integration, and data integration for upper-layer business applications.
Logic Composer is a managed service. The running of a workflow you created is divided into two parts. One part is workflow scheduling. During workflow scheduling, Logic Composer parses the content of the workflow, judges the running sequence of nodes, and then determines the follow-up status and actions of the workflow based on the input and output of the workflow or nodes. The other part is the execution of specific operations. For some specific operations (such as JavaScript inline code), user-defined code is supported to implement customized business logic. The runtime environments of such code belong to respective Alibaba Cloud accounts. The runtime environments of tenants are isolated to ensure the security of the running process.