Here is an excerpt from a “classic” article written by Michael Porter for Harvard Business Review and the HBR Blog Network. To read the complete article, check out the wealth of free resources, obtain subscription information, and receive HBR email alerts, please click here.

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I. Operational Effectiveness Is Not Strategy

For almost two decades, managers have been learning to play by a new set of rules. Companies must be flexible to respond rapidly to competitive and market changes. They must benchmark continuously to achieve best practice. They must outsource aggressively to gain efficiencies. And they must nurture a few core competencies in race to stay ahead of rivals.

Positioning—once the heart of strategy—is rejected as too static for today’s dynamic markets and changing technologies. According to the new dogma, rivals can quickly copy any market position, and competitive advantage is, at best, temporary.

But those beliefs are dangerous half-truths, and they are leading more and more companies down the path of mutually destructive competition. True, some barriers to competition are falling as regulation eases and markets become global. True, companies have properly invested energy in becoming leaner and more nimble. In many industries, however, what some call hypercompetition is a self-inflicted wound, not the inevitable outcome of a changing paradigm of competition.

The root of the problem is the failure to distinguish between operational effectiveness and strategy. The quest for productivity, quality, and speed has spawned a remarkable number of management tools and techniques: total quality management, benchmarking, time-based competition, outsourcing, partnering, reengineering, change management. Although the resulting operational improvements have often been dramatic, many companies have been frustrated by their inability to translate those gains into sustainable profitability. And bit by bit, almost imperceptibly, management tools have taken the place of strategy. As managers push to improve on all fronts, they move farther away from viable competitive positions.

Operational Effectiveness: Necessary but Not Sufficient

Operational effectiveness and strategy are both essential to superior performance, which, after all, is the primary goal of any enterprise. But they work in very different ways.

A company can outperform rivals only if it can establish a difference that it can preserve. It must deliver greater value to customers or create comparable value at a lower cost, or do both. The arithmetic of superior profitability then follows: delivering greater value allows a company to charge higher average unit prices; greater efficiency results in lower average unit costs.

Ultimately, all differences between companies in cost or price derive from the hundreds of activities required to create, produce, sell, and deliver their products or services, such as calling on customers, assembling final products, and training employees. Cost is generated by performing activities, and cost advantage arises from performing particular activities more efficiently than competitors. Similarly, differentiation arises from both the choice of activities and how they are performed. Activities, then are the basic units of competitive advantage. Overall advantage or disadvantage results from all a company’s activities, not only a few.

Operational effectiveness (OE) means performing similar activities better than rivals perform them. Operational effectiveness includes but is not limited to efficiency. It refers to any number of practices that allow a company to better utilize its inputs by, for example, reducing defects in products or developing better products faster. In contrast, strategic positioning means performing different activities from rivals’ or performing similar activities in different ways.

Differences in operational effectiveness among companies are pervasive. Some companies are able to get more out of their inputs than others because they eliminate wasted effort, employ more advanced technology, motivate employees better, or have greater insight into managing particular activities or sets of activities. Such differences in operational effectiveness are an important source of differences in profitability among competitors because they directly affect relative cost positions and levels of differentiation.

Differences in operational effectiveness were at the heart of the Japanese challenge to Western companies in the 1980s. The Japanese were so far ahead of rivals in operational effectiveness that they could offer lower cost and superior quality at the same time. It is worth dwelling on this point, because so much recent thinking about competition depends on it. Imagine for a moment a productivity frontier that constitutes the sum of all existing best practices at any given time. Think of it as the maximum value that a company delivering a particular product or service can create at a given cost, using the best available technologies, skills, management techniques, and purchased inputs. The productivity frontier can apply to individual activities, to groups of linked activities such as order processing and manufacturing, and to an entire company’s activities. When a company improves its operational effectiveness, it moves toward the frontier. Doing so may require capital investment, different personnel, or simply new ways of managing.

The productivity frontier is constantly shifting outward as new technologies and management approaches are developed and as new inputs become available. Laptop computers, mobile communications, the Internet, and software such as Lotus Notes, for example, have redefined the productivity frontier for sales-force operations and created rich possibilities for linking sales with such activities as order processing and after-sales support. Similarly, lean production, which involves a family of activities, has allowed substantial improvements in manufacturing productivity and asset utilization.

For at least the past decade, managers have been preoccupied with improving operational effectiveness. Through programs such as TQM, time-based competition, and benchmarking, they have changed how they perform activities in order to eliminate inefficiencies, improve customer satisfaction, and achieve best practice. Hoping to keep up with shifts in the productivity frontier, managers have embraced continuous improvement, empowerment, change management, and the so-called learning organization. The popularity of outsourcing and the virtual corporation reflect the growing recognition that it is difficult to perform all activities as productively as specialists.

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Here is a direct link to the complete article.

Michael E. Porter is the Bishop William Lawrence University Professor at Harvard Business School. He has served as an adviser to governments and campaigns around the world on the advancement of social policy and economic policy, including Mitt Romney’s presidential campaign. His latest paper is The Role of Business in Society. He is an academic adviser to the Leadership Now Project.