Reston, Virginia-based GSI-Danet Inc has announced a new family of Open Systems Interconnection products for software development, with the OSI Product Development Support System, Osipro. The company claims Osipro assists designers through software development by analysing communications software and testing for Open Systems conformity before modules are integrated into the final product. The Danet GmbH-owned company says the tools, written to run under Unix, can diagnose incorrect Open Systems communications and protocol behaviour using diagnostic levels that are selectable independently for each layer; Osipro also enables development test and system integration personnel to define and sequence software tests. Functions are carried out through a Unix-like user interface, and prices start at $32,000.