Computers cannot accurately asses how the skin and soft tissue will stretch after implantation. The computer will not correct or assist in the actual surgical procedure. All plastic surgeons or other physicians can purchase the program and they are immediately considered an expert.When considering size, use the following;Choice of Material - silicone feels more natural than saline implants. Silicone also looks more natural when walking or running in a bathing suit. However, for larger breasted woman who want a little oomph, the material type is not as important.Choice of Shape- tear drop versus round implants. For the average woman, the round implants are ideal. Why? Round implants will sag over time so that they resemble the tear drop (ideal shape). However, if the implants rotate a little, nothing bad occurs. In contrast, the tear drop shape implants can rotate and then they will look asymmetrical. In order to avoid this rotation, the implants have a textured coating that minimizes rotation but does not eliminate it. Also, the texture coat can result in an unnatural pleat in the implant when moving in certain directions. My bet is that round will be the way to go for a long time.Considerations for Size - implants come in different shapes and sizes. The three most common shapes are low, medium and high profile. This means that for a low profile implant - the implants are wider and less projecting than the other shapes for any particular volume. High profile implants are more projecting and narrower than the other shapes for a particular volume. The middle profile is somewhere in between. As for the look, low profile is more conservative while the high profile is more aggressive.When considering the proper implant for anyone, I consider the chest wall width, the shape of the breast and the patients desired result and final cup size. For instance, a thin woman may need a narrower implant to achieve a desired volume or projection. In contrast, a wider chested woman may need a low profile implant so that the implant do not appear too far apart. Another consideration is breast shape - a flat, wide breast would benefit from a more projecting implant while a narrower, more projecting breast (Tuberous breasts) may benefit from a wider implant.As for volume, the rice test performed at home, as well as trying on sizers in the doctors office can help to determine the desired overall volume. Keep in mind when performing the rice test, that whatever size you like, then add another 10% in volume. Also, the type of clothing you wear will determine how the augmentation looks. For instance, a large breast in a sweater will look too big in a bikini and conversely a perfect size in a bathing suit will look small in a sweater.In the end, find a board certified plastic surgeon. If you would like more information, please read my book " Cosmetic Breast Surgery - A Complete Guide From A to Double D".