When a scuba diver breathes compressed air a certain amount of the gas will be absorbed into the blood and tissues.When the pressure is reduced (upon ascent) the gases will start to dissipate from the tissues.If decompression occurs too fast, super saturation occurs and the diver will suffer the painful symptoms of the "bends". Every dive leaves some excess of nitrogen in the body.All this excess will not leave the body until at least twelve hours have passed after the dive.If a "repetitive dive" is made within twelve hours of a "previous dive", the diver needs to figure in the excess nitrogen time required for his repetitive dive. The following tables (originally portions of the 1963 US Navy Diving Manual) can be used to determine whether or not decompression is required on a second dive immediately after a previous dive.NOTE: if the second dive is not made immediately, the surface interval time could be used in reducing the need for decompression.We shall assume an immediate second dive. The procedure for doing this is as follows:STEP 1:calculate repetitive group designation based on previous dive depth and time,STEP 2:calculate residual nitrogen time based on repetitive group designation and projected depth of repetitive dive,STEP 3:calculate equivalent single dive time (sum of residual nitrogen time and projected time of repetitive dive),STEP 4:determine if decompression is required based upon the projected depth of the repetitive dive and the equivalent single dive time.

A local company needs an order-entry system to be developed so that it can effectively manage the increasing growth in customer base and related orders. In a recent discussion with a consultant, the company was told about two-tier and n-tier architectures, but it is unsure what the best option for its system is. The company knows that it needs to be able to support code reusability, and it seeks to be able to eventually use the database in a data warehouse.Assignment GuidelinesAddress the following in 3–4 pages:Discuss the distributed system design plan that focuses on the following with regard to an n-tier system:PresentationBusiness logicData layer Give 2 design solutions for the systemBuild a case as to why you recommend one solution over the other.Be sure to reference all sources using APA style.*Below is more descriptions on what is expected in this assignment.TYPE: Individual ProjectDUE DATE: Sun, 03/27/16POINTS POSSIBLE: 125DELIVERABLE LENGTH:  3–4 pagesDESCRIPTION: 0" class="ng-scope" style="margin-bottom: 10px;">OBJECTIVES:Design and implement the business logic layer for an N-tiered systemDesign and implement the data layer for an N-tiered systemDesign and implement the user interface tier for an N-tiered system