This chapter defines a project as a unique product or service that is time-limited and ends when its objectives are achieved or abandoned. It discusses that project success is traditionally defined by being on time, within budget and delivering the promised scope, but more effectively by a satisfied customer. A project has constraints of cost, scope, quality, risk, resources, and time that can be grouped into the triple constraints of time, scope and cost. The chapter also covers that project management requires expertise in various applications and skills in understanding the project environment and managing it through interpersonal, communication, leadership and problem-solving skills.