Notes

• Object may have several interfaces, each of which is a view point on the methods that it provides.
• Software process: related activities that leads to the production of the software
• specification functionality and constraints are defined
• development
• validation validate to ensure that software does what customer wants
• evolution evolve to meet changing customers needs.
• plan-driven process activities are planed in advance, progress is measured against this plan.
• agile process planing is incremental,
• requirements are developed incrementally according to user priorities.
• move towards a solution in a series of steps, backtracking when realizing a mistake
• Component is a collection of objects that operate together to provide related functions and services.
• Pattern is a way of reusing the knowledge and experience of other
• is a description of the problem and the essence of its solution.
• a well tried solution to a common problem
• Frameworks are often implementation of design patterns
• inversion of control, framework objects, not application specific objects, are responsible for control in the system.
• framework objects invoke "callback method" that is linked to user-provided functionality.
• framework rely on inheritance and polymorphism.
• COTS "commercial off the shelf" is a software system that can be adapted to the need of different customers without changing the source code of the system "just extensive configuration".

ie: read from software engineer sommerville.