Posts

Since TM1 is a memory-based OLAP engine, one of the most important considerations in developing  efficient planning models is to utilize the least amount of memory that is available on the server. As time goes on the model will likely grow in size and consume more resources. This usually happens when you add additional elements the cube’s dimensions and archive fewer elements . As the cube reaches its memory limit, users may experience issues like poor application performance, longer server start times, crashes, and other similar problems. Also, adding new elements can multiply memory use further because rules may act upon the elements added and take up even more of the server’s available resources. Read more

Last month’s article described the overall approach for best practice model design using the 4 layer architecture. In this month’s article, I’ll describe some advanced issues which arise during model design, and how best to deal with them. Given the limitless and complex situations that can come up during modeling, these techniques may or may not apply to your specific situation. Read more

For those starting out with Cognos 8, or even those who have worked with it for quite a while, Framework Manager model design can seem like a daunting or even overwhelming task. With so many options available, it can be hard to know what to consider during design, and how to promote stability and sustainability.

This is the first in a two-part article that will focus on the best practices, organization and overall methodology of Framework model development. As is often the case with complex tools, even developers who have worked with Cognos for a while can be confused on at least some of the concepts and considerations of model design. The focus of this first article will start from the beginning, and describe an overall 4 layer approach, detailing the purpose and reason for each of the four layers. Next month’s article will describe advanced best practices, and other tips. Read more