The Secure Installation component provides the means to securely install applications on the ZDMP platform. This component acts on behalf of the user when they request an installation of a zApp through the ZDMP Marketplace (the trustworthy Marketplace developed for hosting zApps). It allows a secure downloading process from the Marketplace, and the policies the zApp is requesting (eg access to databases). A given zApp is not directly installed in the ZDMP platform unless it passes the review of the IT administrator. By leveraging the Security Command Centre UI, the IT Administrator can then accept or reject the policies a given zApp is requesting. Once approved, the IT administrator can then install the zApp (deploying it into the Application Runtime). Additionally, through the Security Command Centre UI the IT administrator can install a Certificate Authority (CA), as well as issue a client certificate for any of the installed CAs.