18 SUBTRACTION ANALYSIS ON A STANDALONE CLUSTER FORMATION
149
150 Ch. 7 Service-Oriented Discovery and Analysis: Implementation Mechanisms
Portfolio
Service
Retirement
Account
Service
Business
Account
Service
SEP-IRA
Account
Service
Traditional
IRA
Account
Service
Atomic
Composite
Composite
Atomic
Atomic
Individual
Account
Service
Portfolio
Service
Business
Account
Service
Atomic
Composite
Atomic
Individual
Account
Service
Solution
Atomic
EXHIBIT 7.19 SUBTRACTION ANALYSIS EXAMPLE
Subtraction Analysis Benefits Service Analysis Best Practices
Aligns service structures with
business requirements and strategies
Eliminates irrelevant functionalities
from atomic services, composite
services, and service clusters
Utilize subtraction analysis to
remove irrelevant business
functionalities
Optimizes performance Subtraction analysis should also be
utilized for technical challenges
Aligns services group contributions
with business and technical
requirements
Work with clusters to evaluate
collective contributions of services
EXHIBIT 7.20 SUBTRACTION ANALYSIS BENEFITS AND BEST PRACTICES
increase the reusability factors of the untouched services. In fact, limiting their operational scope
may achieve the opposite results.
Exhibit 7.20 identifies the subtraction analysis benefits and the service-oriented analysis
best practices. Note that the subtraction operation is chiefly recommended for functionality
redundancy and service performance optimization.
Pages:
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279