It's like working to a deadline on a design project - you need to have all relevant data by a given date in order to proceed to the next stage.
Oge ọrụ na-atụ yiri usoro ọrụ na-arụ ọrụ; Otú ọ dị, ọ dị mkpa ka e debe ibe gị na peeji nke dị iche iche na usoro ọ bụla ka i wee nwee ike ibipụta akwụkwọ ziri ezi na-aga n'ihu.