Project Portfolio: The set of projects in development at any point in time. These will vary in the extent of newness or innovativeness. (See Chapter 13 in The PDMA ToolBook 1 and Chapter 3 of The PDMA HandBook 2nd Edition.)
项目组合:产品开发流程中的一系列项目。它们会随着创新程度的不同而不同。
