UMass Lowell Mathematics Department offers bachelor's, master's and doctoral programs in applied, computational, statistics, & teaching.

Use customizable shapes to craft UML diagrams that visually represent software architecture, business processes, and other complex systems.

GitHub is where people build software. More than 150 million people use GitHub to discover, fork, and contribute to over 420 million projects.

In this paper, we present the formal semantics of sequence diagrams. The semantics of a sequence diagram is interpreted as a consecutive execution of steps in UTP. The semantics clearly captures the ...

The modeling, simulation and verification of real-time systems can be unified and the efficiency of system development can be improved if the UML timing diagram model can be translated into the timed ...

This repository provides UML diagrams (Use Case, Class, Sequence, Activity), Data Flow Diagrams (DFD), and Excel sheets to help visualize and document software architectures, workflows, and system ...