International Journal of Web Applications Aleksandar Atanaskovic, Biljana Stosic, Natasa Males-Ilic 12 4 2020 https://doi.org/10.6025/ijwa/2020/12/4/127-134 https://www.dline.info/ijwa/fulltext/v12n4/ijwav12n4_3.pdf E-learning is an integral component in the educational systems. The web based e-learning applications use many interactive platforms which are unique. The traditional print based books cannot able to provide such facility. In the digital signal processing, processing of digital signals is a basic exercise. We in this work have introduced a framework for the NI application in the system based teaching. We also selected a few example in the area of digital filtering for this work. We have used live digital communication for the description of the learning process.