This is why the authors have collaborated to identify a selected set of criteria to use in establishing "best practice" examples. These are not necessarily "advanced practices" or "difficult to learn" methods. They are basic approaches that address issues and questions commonly of concern to enterprise IT departments.
These criteria are intended to address the fact that most installed security systems and devices, and many new security devices, are not fully network-ready. They were not designed to co-exist on a network with the many types of non-security systems and devices to be found on an enterprise network.
Some security system products lack desirable features. Some have mistakes in their implementation of IT standards and protocols. Some violate a network standard or protocol severely. Some correctly follow standards and protocols to a "T", but can't be managed in the way that IT groups want or need to manage networked devices. It is quite a varied landscape that results from a physical security systems deployment.
Managing Networked Systems
With good reason, IT operations personnel have come to value the management protocols and capabilities that are built into their network devices. Their value becomes clear when you look at their operational benefits. Instead of 50 or 100 cameras, IT has hundreds or thousands of PCs and other devices to manage (including printers, scanners, wireless access points, network switches and routers, etc.). They use network management software to tell when something is offline-before an operational problem results.
Managing with Murphy in Mind
Physical security operations folks are used to the "Murphy's law" scenario in which a new card reader is installed, and the one card that doesn't work at it belongs to the CEO or another high-level executive, who is trying to escort the board of directors into the building and out of a rainstorm. Is there an equivalent case in the IT world? There are many. Here is a story about printing a critical report.
About 20 minutes prior to a critical meeting, a senior executive instructs an executive assistant to print an important confidential report that she has just received. The assistant discovers that he can't print it because the printer seems to be offline. But when the assistant walks over to the printer, everyone else seems to be printing to it without any trouble! What gives? The assistant, fearing a reprimand for being late with the report, copies the report to a USB drive and takes it to a friend in a different department whom he saw at the printer retrieving a document. This is a violation of the executive's specific instructions (as well as company policy) about the handling of that type of confidential material.
After delivering the printed report to a frustrated boss, well after the meeting has started, the assistant calls an IT support person make sure that the document is not being retained in any buffer or storage area in the printer. The result: job stress for the assistant, lost work time, violations of confidential information protection, and an unhappy senior executive who looks to peers to have been lax in preparing for the critical meeting.
Avoiding "Murphy" Consequences
The way that IT folks prevent that kind of scenario from happening includes monitoring the health of workstations, servers, printers and other network devices. By being alerted to an offline or malfunctioning network switch or other device (in this example, a device on the network between the assistant's computer and the printer), the problem can be remedied quickly and trouble prevented. With thousands or tens of thousands of computers and network devices to manage, high-risk systems or products (those with a likelihood of labor-intensive maintenance or troubleshooting) are avoided like the plague-at least when those who have to support the technology are listened to.
The comparatively small scale of physical security system deployments (independent from enterprise IT infrastructure) has allowed a much more lax approach for deploying security systems than IT can accept or tolerate.
The comparatively small scale of physical security system deployments has allowed a much more lax approach than IT can accept or tolerate. Now that the size of networked security systems is scaling up in most organizations, the lax approach is no longer feasible, especially in today's budget-constrained operating environment.