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amrameshreddy.blog.comAPPENDIX A■ ■ ■QuickReturns Ltd.QuickReturns Ltd. is the sample company we use throughout this book to explain the conceptsof the Windows Communication Foundation. This appendix contains the high-levelarchitecture that we created.The following is a simplified model of an equity trading market and participants. We havecombined some of the roles in order to simplify the perspective. This model is not meant toreplicate the real interorganizational structure; it’s just a basic representation for demonstrationneeds.The following are the primary participants along with a general description of what servicesthey provide or expect from other participants:Asset Manager: This is an individual providing portfolio management and issuing tradesto buy or sell stock through a market. Asset Managers make decisions about what specificsecurities to buy or sell in order to establish a portfolio that meets their client’s needs.Market Maker: This is an individual providing execution and market-making activities ona set of stocks listed on an exchange. Market Makers provide orderly market monitoringby maintaining two-sided displayed quotes, ensuring the quote is not inverted in thespread. They provide liquidity needs for investors. They clear and settle transactionsthrough the Depository.Exchange: This is an entity that provides an organized forum for Market Makers to publishmarket prices on listed securities. The Exchange provides execution services and systemsthat match, capture, record, and track security transactions amongst market participants.Depository/Securities Processing System: This is an entity that keeps track of open positionsfor all market participants on the listed securities. Generally, each participant wouldhave their own securities-processing system or subscribe to a corresponding service fromanother participant. However, for this example, the model is simplified, and the Depositoryprovides all the necessary needs.ramrameshreddyramrameshreddy425
amrameshreddy.blog.com426 APPENDIX A ■ QUICKRETURNS LTD.ramrameshreddy.blog.comMarket OverviewFigure A-1 shows an overview of how the example stock-trading market works.Asset ManagerGet QuoteTrade SecuritySettle TradeGet PositionFigure A-1. Market overviewServices and CollaborationramrameshreddyramrameshreddyThe following sections list each entity with the primary service they publish along with theprimary consumers of that service (in parenthesis).Asset ManagerExchangeExecute TradeDepositoryThe following are the specifics of the Asset Manager.Publish QuoteMarket MakerTrade SecuritySettle TradeGet Position
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amrameshreddy.blog.comTHE EXPERT’
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amrameshreddy.blog.comxii ■CONTEN
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amrameshreddy.blog.comxviii ■FORE
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amrameshreddy.blog.comxx ■ABOUT T
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amrameshreddy.blog.comxxviii ■INT
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