Patterns are higher-order designs that can be reused across projects and types of computer systems. Analysis Patterns: Reusable Object Models defines over 70 patterns, beginning with some from the business world, such as the Party and Accountability patterns, which define the players in organizations and whom they report to. Many of the other patterns are drawn from the health care industry and mainly show patterns of doctor-patient interactions.The patterns for financial markets will probably be accessible for the majority of readers. Author Martin Fowler defines a Transaction pattern (and related patterns) as well as several patterns for the Accounting of Objects. He moves on to modeling stock markets with Portfolio, Quote, and Scenario patterns, which define how a price for a stock is determined for a given moment. Interestingly, he establishes patterns for Forward Contracts (for derivatives) as well as Options, and so takes on a complicated area in today's financial markets.Fowler's considerable design experience in these fields is beneficial, as he is able to define each pattern in both text and software engineering diagrams. Only rarely does the author provide implementations of these designs and those that are furnished are done in Smalltalk, which makes this book more suitable for those who have experience in object design.