three. Abstraction: DFDs abstract away the implementation specifics and focus on the data stream and procedures within a procedure. They supply a substantial-level overview and omit unneeded technological info. tech supportcomputer authorities (youtech guidance specialiststhing — techsupport experts generallycomputer techniciangood tech supportmany sleepless nightsinstalled Home windo... https://angelorvviy.blogocial.com/ivey-case-studies-an-overview-74102087