The Information Server Launchpad Web Page is not localised

Answer

Whilst the page has not been globalised/localised it is possible to configure certain messages and url's such that is possible to display another language.

If you got to InformationServer/ASBServer/bin and issue the command to below display all keys concerning the launchpad and these can be used to customise to launchpad web page. Here I will customised some but not all, you will have to do the rest, I used google to the translations and make no claim for them to be correct.

To display keys

./iisAdmin.sh -d -k com.ibm.iis.launchpad.*

To set keys

./iisAdmin.sh -s -k -value <value>

From the display command some of the values

com.ibm.iis.launchpad.welcome=Welcome to IBM InfoSphere Information Server
com.ibm.iis.launchpad.infocenter.help.name=IBM InfoSphere Information Server documentation
com.ibm.iis.launchpad.infocenter.help.text=The documentation for the InfoSphere Information Server product modules and components is in IBM Knowledge Center.
com.ibm.iis.launchpad.infocenter.help.url=http://www.ibm.com/support/knowledgecenter/SSZJPZ_11.5.0
com.ibm.iis.launchpad.help.more=Learn more...

You can change these using

./iisAdmin.sh -s -k com.ibm.iis.launchpad.welcome -value "Bienvenue dans IBM InfoSphere Information Server"
./iisAdmin.sh -s -k com.ibm.iis.launchpad.infocenter.help.name -value "Documentation IBM InfoSphere Information Server"
./iisAdmin.sh -s -k com.ibm.iis.launchpad.infocenter.help.url -value https://www.ibm.com/support/knowledgecenter/fr/SSZJPZ
./iisAdmin.sh -s -k com.ibm.iis.launchpad.infocenter.help.text -value "La documentation des modules et des composants du produit InfoSphere Information Server se trouve dans IBM Knowledge Center."
./iisAdmin.sh -s -k com.ibm.iis.launchpad.help.more -value "Apprendre encore plus..."

Stop and start the Websphere Application Server.