Writing Practice Part 1. Hello...I'm practicing my writing for my upcoming IELTS test. Any correction or feedback is very welcome. :-) The diagram shows how raw materials and manufactured components are being processed before they’re put up for sale. At the first stage they’re going through the same step which is being put into storage. At the same time the research team is running a research over the design where it will be used as part of production planning. After finding the right design for the product those raw materials and manufactured components will go through assembling process and later will be tested before it’s sent to packaging process and is being dispatched to sale. Before all the stages being processed a market research must be done in order to plan a good advertisement and packaging to help with the sale. The amount of sales itself will be used to help plan the next production and also to help find the right design and market for the next product. All the planning needed for the next production will also be kept into storage.