Scaling for E-Business

3.5. From CBMGs to CSIDs

The previous sections introduced CSIDs as a way of describing the flow of e-business functions. In this section we discuss the steps to be followed to go from CBMGs to CSIDs.

1.	Obtain the static CBMG as described in Chapter 2.
2.	From the static CBMG, build a list of all e-business functions.
3.	For each e-business function, determine the software servers (e.g., web server, application server, database server, authentication server) involved in its execution. Document the relationship between e-business functions and servers in a matrix as illustrated in Table 3.3.
4.	Determine the flow of messages between the client and servers and build a CSID for each e-business function. Figure 3.10 shows the mapping from a CBMG to ...