Service'Oriented,Architecture Spring,2012 Provide,a,document,for,each,of,the,essays,below,in,either,DOC,or,PDF,format,that,is, single'spaced,,12'pt,font,including,appropriately,sized diagrams,and,code,samples., Provide,such,diagrams,and,code,samples,to,completely,clarify,your,essays.,Any, material,copied,directly,from,printed,or,web,content,must,be,referenced,properly, using,either,in'line,references,and/or,footnotes.,Sources,should,be,included,at,the, end,of,each,essay,in,bibliographic,format.,Plagiarism,will,not,be,tolerated,and,when, identified,will,result,in,a,grade,of,zero,for,the,entire,exam,(see,course,syllabus,for, 'Code,of,Conduct,and,Ethics)., Essay,One,(30,– 3,pages,minimum) Provide,a,detailed,description,of,the,term,SOA,including,a,discussion,of,the,various, layers,and,their,interrelationship,,service,composition,and,orchestration,of,such, services.,What,are,the,advantages,and,disadvantages,of,using,SOA,as,an,enterprise, solution,over,traditional,enterprise,solutions?,What,is,the,competitive,edge,in, utilizing,this,type,of,architecture?,Discuss,how,employing,SOA,in,'greenfield',and, 'brownfield',solutions,differ., Essay,Two,(40,– 4,pages,minimum) Define,the,terms,validation,and,transformation,as,they,pertain,to,XML,technologies. What,is,a,well'formed,XML,instance,document?,...,a,valid,instance,document?,,What, is,JAXB,and,why,is,it,important,to,applications,utilizing,XML?,Describe,marshaling, and,un'marshaling,of,XML,documents.,What,is,the,difference,between,SAX,,StAX, and,DOM,parsing?,How,does,JAXP,relate,to,these,parsing,techniques? Essay,Three,(30,– 3,pages,minimum) Provide,a,detailed,description,of,SOAP,and,REST,web,services,,their,XML, descriptors,and,their,message,exchange,patterns.,When,are,RESTful,web,services, useful,in,message'oriented,application,development?,When,are,SOAP'based,web, services,required,in,message'oriented,application,development?,Why,do,web, services,work,well,in,the,application,of,SOA,to,enterprise architecture?