Software difficulties Difficulties: understanding highly complex business domains large teams of engineers over multiple phases of a project spanning many months time-to-market pressures complicated assortment of infrastructure technologies variety of middleware acquired from many vendors There are two important ideas: Service-Oriented Architectures Software Product Lines Tian Zhang at Nanjing Univ.Tian Zhang at Nanjing Univ. 4 Software difficulties „ Difficulties: ‰ understanding highly complex business domains ‰ large teams of engineers ‰ over multiple phases of a project spanning many months ‰ time-to-market pressures ‰ complicated assortment of infrastructure technologies ‰ variety of middleware acquired from many vendors ‰ … … „ There are two important ideas: ‰ Service-Oriented Architectures ‰ Software Product Lines