Maintaining many similar software products with huge similarities and some variations have been studied is Software Product Line Engineering (SPLE). Traditional software methodology lacks the notions to model and maintain those variability and commonality in all phases of standard known software methodology (e.g. from requirement phase up to the testing phase). This paper shows a proposed software methodology based on SPLE to ease the development and maintainability of similar software product. The paper focuses on the design and realizes the reusable artefacts to generate a family of software products systematically with case study example of Supply Chain Management in Manufacturing. This methodology utilized the commonly known UML diagram with the use of UML Profile of Delta Programming and some tools of code generator. © Published under licence by IOP Publishing Ltd.