The Wolverine story . . .

Wolverine Software was founded in 1976 by James O. Henriksen.


Wolverine's first product, GPSS/H for IBM mainframes, was introduced in 1977. The first commercial installation of GPSS/H was made at General Motors Manufacturing Development. GPSS/H was a powerful replacement for IBM’s GPSS/V, the then current standard for the GPSS language. In the years that followed, Wolverine continued to expand and improve GPSS/H well beyond GPSS/V, replacing it as the standard for GPSS.


Following the introduction of GPSS/H for IBM mainframes, Wolverine developed versions of GPSS/H for the VAX (1983), Unix workstations (1986), and the IBM PC. PC versions include Personal GPSS/H (August 1988), Student GPSS/H (April 1989), and  GPSS/H Professional (April 1990, originally released as GPSS/H 386).

In 1989, Wolverine introduced Proof Animation, a new, state-of-the-art, general purpose animation package. Proof is general-purpose in two ways. First, it has a small, but powerful command language which can be applied to a wide variety of applications. Second, it can be used with almost any simulation language, as well as with any other software that can produce standard ASCII output files. Versions of Proof include Proof Animation (the entry-level package), Proof Professional (an "unlimited" version), and Student Proof Animation. Proof's Demo Maker option, provides the capability for producing royalty-free demos. Run-Time Proof is an "execute-only" version of Proof.

Wolverine's newest product, SLX, is a general-purpose simulation language designed for modelers who need flexibility and extensibility, plus the traditional Wolverine emphasis on blazing speed, even when running large, complex models. SLX offers a layered approach to simulation modeling. A modeler can choose different levels of programming detail, ranging from a powerful kernel layer that lets one build a custom simulation language to upper layers consisting of user-friendly "simulators". SLX’s kernel provides powerful building blocks, and its extensibility mechanisms make it easy to move up to higher levels of abstraction.

Wolverine’s general-purpose products are used in many different application areas, including manufacturing and material handling, computers and communications, transportation and distribution, process manufacturing, military logistics, white collar work flow, health care, and mining. Wolverine also provides books, training, and simulation consulting services to a wide range of customers.

In addition to their use in diverse commercial applications, Wolverine products are used to teach simulation in engineering, operations research, computer science, and management departments of colleges and universities around the world.