By Rami Mounla Optimistic Concurrency Control Copyright 2010 FUJITSU LIMITED

Outline Introduction Buzzwords The problem Solutions Resources Questions Copyright 2010 FUJITSU LIMITED 1

Buzzwords OData JSON ATOM RESTful WCF on Windows Azure LINQ Copyright 2010 FUJITSU LIMITED 2

The Problem Handling concurrency control in CRM 2011 User 1 User 2 User 1 Potential to lose data Copyright 2010 FUJITSU LIMITED 3

Optimistic Concurrency Control Solutions First Solution JavaScript RESTful JSON Second Solution Plugins Third Solution JavaScript WCF services Copyright 2010 FUJITSU LIMITED 4

Prerequisites Visual Studio IDE CRM 2011 SDK (not the beta version) Windows Identity Foundation Windows Azure tools for Visual Studio JSON script Code snippets (optional) Copyright 2010 FUJITSU LIMITED 5

Solution 1 JavaScript using JSON Pros Entity independent Following the recommendations User interaction Fast Cons Minimal Intellisense Tedious when logic is complex When to use Simple business logic User interaction Copyright 2010 FUJITSU LIMITED 6

Solution 2 JavaScript and Plugin Pros Intellisense Good for complex logic Forces failure Standard Cons Dependent on updated attributes No user interaction When to use Complex business logic Either pass or fail Asynchronous Copyright 2010 FUJITSU LIMITED 7

Solution 3 JavaScript and Azure WCF Pros Good for integration User interaction.NET strength Cons XDomain script can be difficult Can be slow Security issue Non standard When to use Complex logic with intellisense Integration with other systems Copyright 2010 FUJITSU LIMITED 8

Resources CRM 2011 SDK 5-C B7E1-F23CEAA83B C B7E1-F23CEAA83B69 JSON Windows Identity Foundation f-e830-40b8-a5fe-ae7a864c4d76&displaylang=en f-e830-40b8-a5fe-ae7a864c4d76&displaylang=en Windows Azure Tools for Visual Studio CRM 2011 VS Snippets concurrency.html concurrency.html Copyright 2010 FUJITSU LIMITED 9

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