Analysts also said they were disappointed by the company 's $ 68 million pre-tax charge for weather-related and overhead costs on its Polar Tanker crude oil tanker program .
Still , analysts said they were disappointed by the company 's 68 million pretax charge for weather-related and test failure costs on its Polar Tanker crude oil tanker program .
- waterfall - v - prototyping - phased development (increments + iteration) - spiral - agile