The 9.4.4 version of Diana is provided as a free download on our website. This PC software is suitable for 32-bit and 64-bit versions of Windows XP/Vista/7/8/10. The following versions: 9.4, 9.3 and 9.2 are the most frequently downloaded ones by the program users. The program's installer files are generally known as Diana.exe, DianaIE.exe or diana_w.exe etc. Diana lies within Office Tools, more precisely Mind mapping. This software is a product of TNO DIANA BV.
From the developer:
DIANA (DIsplacement ANAlyzer) is an extensive multi-purpose finite element software package. The program's robust functionality includes extensive material, element and procedure libraries based on advanced database techniques, linear and non-linear capabilities and much more
You may want to check out more software, such as Cepstral Diane, Sheep Friends - Diana or The Legacy Forgotten Gates Collectors Edition, which might be related to Diana.