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Learn how to use a spreadsheet to compare new or used cars based on price, features, fuel economy, safety and more. Find useful websites and resources for car shopping in pandemic times.
If it’s a one-for-one comparison (say $3.49 vs. $3.09 for a pound of boneless, skinless chicken breast), it’s easy: Just record whichever store has it cheaper in the column on the right-hand side.
Learn about the history, technology and business models of comparison shopping websites, which help shoppers filter and compare products based on price, features, reviews and other criteria. Find out the major websites and their regional focus in different markets.
A cost estimate is the approximation of the cost of a program, project, or operation. Learn about the different types and classes of cost estimates, such as order of magnitude, preliminary, and definitive, and how they are used in various fields and industries.
Learn about the project management triangle, a model of the constraints of project management: time, cost and scope. Find out how to balance these constraints, use different approaches and tools, and see examples and references.
Learn about the process, history and challenges of predicting the amount of effort required for software projects. Compare different estimation approaches, such as expert, formal, parametric, size-based and combination-based methods, and their accuracy and applicability.
Cost–benefit analysis (CBA), sometimes also called benefit–cost analysis, is a systematic approach to estimating the strengths and weaknesses of alternatives.It is used to determine options which provide the best approach to achieving benefits while preserving savings in, for example, transactions, activities, and functional business requirements. [1]
A cost-plus contract is a contract that pays a contractor for its allowed expenses, plus a fee or profit. Learn about the history, types, usage, advantages and criticism of cost-plus contracts, especially in the U.S. government and defense sectors.