... Practices Module 9 is the second of two modules that focus on the data access layer (DAL). In Module 8, The Nontransactional Data Access Layer, ” you learned about data retrieval. In this module, ... outcome of the transaction. Operation of CRM The first step in the operation of the CRM is the client component’s creation of the CRM Worker. The client component then begins using the CRM Worker. ... Module 9 is the second of two modules that focus on the DAL: Module 8, The Nontransactional Data Access Layer and Module 9, The Transactional Data Access Layer. ” The DAL is an application’s...