1. A method comprising: in an automated operation performed using one or more computer processor devices configured to perform the automated operation, updating a web application and a corresponding client application by distributing configuration data in common to a web server managing the web application and to a client device on which the client application is installed, the configuration data comprising a single configuration file that is usable both by the web application and by the client application to similarly configure, without creating a new application, corresponding programmatic modules of the web application and the client application respectively, configuration of each of the corresponding programmatic modules comprising updating of the respective programmatic module to implement for the respective application of which it forms part at least one of: programmatic changes to one or more existing functionalities, and programmatic addition of one or more new functionalities.