Application

IT Resource Sub Tower Definitions Examples Unit of Measure (standard)
Database Server-based database management systems (DBMS) such as Oracle.

MS SQL

Oracle on servers

Database Instances
Middleware Server Middleware - software that links databases and servers of different architectures, and the effort required to support it.

WebSphere, ColdFusion, JBoss, Apache.

Middleware Instances
Mainframe Database Mainframe-based database management systems such as DB2

DB2

Oracle on mainframe

Databases
Mainframe Middleware Mainframe Middleware - software that links databases and mainframes of different architectures, and the effort required to support it. IBM’s MQ Series Middleware Instances

Application Cost Pool Composition

IT Resource Sub Tower Internal/External Labor Hardware Software Outside Services Facilities & Power Telecom
Database Personnel for operational and second level support including administration, configuration, updates etc. N/A Database software N/A – tracked under Telecom cost pool N/A N/A
Middleware Personnel for operational and second level support including administration, configuration, updates etc. N/A Middleware software Managed services for server middleware N/A N/A
Mainframe Database Personnel for operational and second level support including administration, configuration, updates etc. N/A Database software Managed services for mainframe databases N/A N/A
Mainframe Middleware Personnel for operational and second level support including administration, configuration, updates etc. N/A Middleware software Managed services for mainframe middleware N/A N/A

Application Unit of Measure

IT Resource Sub Tower Unit of Measure (standard) Guidelines

Database

Mainframe Database

Database Instances A database instance is a logical database hosted within a DBMS installation. Note: Some cases a DBMS may host several database instances. System tables and other master data are not counted and only data provided to end-users and end-user applications are counted (including development and test dbs).
Mainframe Database Databases Number of Databases

Middleware

Mainframe Middleware

Middleware Instances Number of instances of middleware package.