Have anyone implemented esri in cognos? if you have any ideas please let me know
We've looked at it, but not leapt into it yet. You can do it a variety of way. ESRI bought a company, SpotOn, that provides studio-level integration and looks rather nice. But of course it does involve spending some not insignificant amounts of cash. Since that can be difficult to acquire here, we are going to try just using javascript. We plan to give this a try on an upcoming project, but only have sample code and nothing we have yet written or deployed ourselves. ESRI has some fairly extensive APIs, our internal ESRI admin was very helpful and you may want to visit with him/her.