Lean Portfolio Management (LPM) is one of the seven core competencies of the Lean Enterprise, each of which is essential to achieving Business Agility. Each core competency is supported by a specific assessment, which enables the enterprise to assess their proficiency.
It describes how a SAFe portfolio is a collection of Value Streams for a specific business domain in an Enterprise. Each value stream delivers one or more Solutions that help the enterprise meet its business strategy. These value streams develop products or solutions for external customers or create solutions for internal operational value streams.
One SAFe portfolio can typically govern the entire solution set for a small-to-medium-size organization. Large enterprises often require multiple portfolios, usually for each line of business, business unit, or division.