Dependency graphs without circular dependencies form DAGs. There are no special dependencies or runtime frameworks required. They also help with managing things such as dependencies between other software repositories. This helps simplify the analysis of dependencies among variables. Keep repeating this until all dependencies on propositional variables have been eliminated. The client should have no concrete knowledge of the specific implementation of its dependencies. Module also includes Gantt chart for illustrating the projects stages and dependencies between tasks. It also lets extension developers easily encapsulate code and avoid fragile hard dependencies. OS/400 because such functions have few hardware dependencies. The interfaces are the types the client expects its dependencies to be. "Linked Gantt charts" contain lines indicating the dependencies between tasks. Some build dependencies can be determined automatically. It aimed to make a replacement for KDE that had no dependencies on proprietary software. More complex systems contain cyclical dependencies or interactions (feedback loops). There are tools to analyze software and find unwanted circular dependencies.