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Data & Intelligence

IBM Cognos TM1 Performance Modeler vs. Architect/Perspectives


Creating a dimension is similar in IBM Cognos TM1 Performance Modeler and IBM Cognos TM1 Perspectives/Architect. However, there are some differences you should be aware of.

Dimension Typing

In Cognos TM1, dimensions can be created either by using the Dimension Editor (right click on Dimensions and select Create New Dimension)…


…or by program code (using the function DimensionCreate).

Either way, you only need to provide a name for your new dimension.

When using Cognos TM1 Performance Modeler, you have the ability to create dimensions of specific types (to fulfill the unique requirements in your model). Supported types include:

  • Calculation
  • Time
  • Version
  • Hierarchy and
  • Generic
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Keep in mind that dimension types are intended to simplify the modeling process and that all of the functionality they provide can be implemented by creating a dimension using Architect or Perspectives (with perhaps some supporting TM1 rules or other scripting).

Here is a brief description of the supported dimension types:

Calculation dimensions

Calculation dimensions can contain formulas (calculations) that perform mathematical and other operations on the data in your cube.

Time dimensions

Time dimensions contain time members, such as financial accounting periods or the dates of sales transactions.

Versions dimensions

Version dimensions contain data from various iterations (versions) of a slice or view of data in your cube.

Hierarchy dimensions

A hierarchy dimension contains a representation of the reporting structure of your data. This dimension can also determine the workflow of your application.

Generic dimensions

Generic dimensions contain general members, such as lists of departments, products, or customers. You should take a note that Generic dimensions can be used when you do not know which type you really need as dimension types can be changed at a later.

Dimension Attributes

One really useful feature Performance Modeler provides is all dimension management can be accomplished in a single window (no need to open separate windows to manage attributes or set element properties).

For those of you who have done your share of modeling, the ability to (right-click) and add a new attribute (and values for the attributes), set weightings, create “Pick Lists” and calculation rules, etc. from a single “view” is simply awesome.


Model on and Enjoy!

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Jim Miller

Mr. Miller is an IBM certified and accomplished Senior Project Leader and Application/System Architect-Developer with over 30 years of extensive applications and system design and development experience. His current role is National FPM Practice Leader. His experience includes BI, Web architecture & design, systems analysis, GUI design and testing, Database modeling and systems analysis, design, and development of Client/Server, Web and Mainframe applications and systems utilizing: Applix TM1 (including TM1 rules, TI, TM1Web and Planning Manager), dynaSight - ArcPlan, ASP, DHTML, XML, IIS, MS Visual Basic and VBA, Visual Studio, PERL, Websuite, MS SQL Server, ORACLE, SYBASE SQL Server, etc. His Responsibilities have included all aspects of Windows and SQL solution development and design including: analysis; GUI (and Web site) design; data modeling; table, screen/form and script development; SQL (and remote stored procedures and triggers) development and testing; test preparation and management and training of programming staff. Other experience includes development of ETL infrastructure such as data transfer automation between mainframe (DB2, Lawson, Great Plains, etc.) systems and client/server SQL server and Web based applications and integration of enterprise applications and data sources. In addition, Mr. Miller has acted as Internet Applications Development Manager responsible for the design, development, QA and delivery of multiple Web Sites including online trading applications, warehouse process control and scheduling systems and administrative and control applications. Mr. Miller also was responsible for the design, development and administration of a Web based financial reporting system for a 450 million dollar organization, reporting directly to the CFO and his executive team. Mr. Miller has also been responsible for managing and directing multiple resources in various management roles including project and team leader, lead developer and applications development director. Specialties Include: Cognos/TM1 Design and Development, Cognos Planning, IBM SPSS and Modeler, OLAP, Visual Basic, SQL Server, Forecasting and Planning; International Application Development, Business Intelligence, Project Development. IBM Certified Developer - Cognos TM1 (perfect score 100% on exam) IBM Certified Business Analyst - Cognos TM1

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