Sevice-Oriented Architecture (SOA) as information system architecture guidance has gain some attention lately, and enterprises begin to look for a way to embrace it to achive the promised benefits. This paper discuss the implementation of Service-Oriented Analysis and Design (SOAD) and Zachman's Framework for Enterprise Architecture (ZFEA) combined methodology to enable SOA adoption within enterprise in more approachable way. The methodology used was Service-Oriented Analysis and Design (SOAD) of IBM which stars with implementation of ZFEA to gain understanding of enterprise, followed by technical and non-technical requirements identification, then walk throuth sevice identification, service classification, up to the service exposure decision. The combined methodology is implemented in PT Kliring Berjangka Indonesia (persero), a government owned financial service company in Indonesia, to find service candidated within transaction registration process in the clearing and settlement business process. The implementation resulted in six service candidates found that designed to answers all the functional and non-functional requirements within the problem domain. Keyword: ZFEA, SOA, SOAD, Service Candidate, Service Identification