Referring to the case study by Cabrera , Corpus , Maradiegue and lvarez (2020):

IMPROVING QUALITY BY IMPLEMENTING LEAN MANUFACTURING, SPC, AND HACCP IN THE FOOD INDUSTRY: A CASE STUDY J.L. Cabrera1, O.A. Corpus1, F. Maradiegue1 & J.C. lvarez1*

Link:

Improving quality by implementing lean manufacturing, SPC, and HACCP in the food industry: a case study (scielo.org.za)

What were the main solutions/ approaches implemented in the case study? How did the author justify rationally the use of these approaches and how did they connect them with the problems and their causes? Illustrate the underlying concepts, purpose and procedures related to the SPC and Lean.

please provide with an Explained anawer and APA references.