Doorstop might be a bit more popular than Device42. We know about 1 link to it since March 2021 and only 1 link to Device42. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This, essentially, is how you will find every single environment, in my experience. The first thing I would do is use something like device42.com to discover my environment. They have a free trial, and the license cost for 1-100 servers is only $1500. That (or any similar tool) will give you a baseline of what you're working with in a centralized database. Using that, you can get a much better idea of what's going... Source: 12 months ago
Zooming into "requirements management" (and out of "developing test cases") there's a couple of Open Source projects that address specifically this important branch of software development. I like both approaches and I think they might be used in different situations. By the way, the creators of these two projects are having useful conversations on aspects of their solutions so you might want to try both and see... - Source: Hacker News / about 2 years ago
DCImanager - DCImanager is a platform for managing physical equipment. Connect any physical equipment to a single platform. Use the platform to manage your servers, switches, PDU as well as physical and virtual networks.
Reqflow - Reqflow is a free and open-source tool for traceability of requirements across documents, designed to analyse documents with speed and efficiency.
Cisco ACI - Application Centric Infrastructure (ACI) simplifies, optimizes, and accelerates the application deployment lifecycle in next-generation data centers and clouds.
rmtoo - rmtoo is a free and open source requirements management tool.
ManageEngine OpManager - Monitors routers, switches, firewalls, load-balancers, wireless LAN controllers, servers, VMs, printers, storage devices, and everything that has an IP and is connected to the network.
Requirements Quality Suite - The Systems Engineering Suite offers you the tools, processes and skills to Verification, Traceability, Reusability and Quality.