about Architecture role question

hello friends i read many articles and find out these roles Software architecture, Business architecture, Infrastructure architecture, Solution architecture, Application architecture. i just only want to know which role focus on scenarios for example how to manege role(Role management) or defining and describing organization post in automation system and which role after recieve that scenario only just focus on designing layers and services and using design patterns(like GOF and...) and using which technology like wcf services and using wssf to design server side app and wcsf to design client app. i want to be at place of second role as i described. which role that i must placed into?

thank you
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