In this paper we present two software applications, one for simulation and design, and another for implementing Luenberguer Linear and High Gain observers. We show the interfaces and present a complete description of the software. The observers were designed for a system of tanks in cascade connected by a channel. We present the mathematic model proposed for this system and the changes that we made in it to ensure the compliance of theory design conditions observers. Further, we make a brief presentation over theory design of observers with us work and basic concepts for their implementation. The most relevant aspects for the programming algorithms used for simulation, design and implementation of observers are studied. The software used for platforms design was Matlab® and LabVIEW®, and report of results for implementation was made in a file, .lvm. This kind of file can process with Matlab® or Excel®.