Imagine starting your day off receiving budget approval for new loss prevention equipment to protect your high-shrink departments in ten different stores. You are thinking of unrolling this technology to other departments based on the performance in shortage reduction, but how do you measure it? Do you measure the stores equally even though there were different starting days for installation? Does the technology perform differently across markets? Across different departments? What measurements will you rely on to assess the technology’s effectiveness? Does it have diminishing effectiveness over time?