项目集管理和项目组合管理之间的区别

1.项目管理：
项目管理，顾名思义，是一种管理，以协调的方式管理项目、活动和类似项目，以获得单独管理无法获得的收益。

2. 投资组合管理：
项目组合管理，顾名思义，是一种管理不同的项目、项目群以实现主要战略目标的管理。

项目集管理和项目组合管理之间的区别：

Program Management	Portfolio Management
It mainly focuses on management of program.	It mainly focuses on management of each and every project within organization.
Its main focus is on strategy and implementation and complete all projects that are necessary.	Its main focus is to bring all programs together i.e. coordinate among various programs simply to ensure that it is moving towards reaching goal.
It is simply management of work within each projects to ensure that right work is moving between right projects.	It is simply management of one or more portfolios i.e. return of investments of individuals to achieve strategic objectives of organization.
Goal of program management is to make best use of resources for completion of project and reduce friction that in turn increase efficiency and performance.	Goal of portfolio management is to identify, prioritize project on basis of benefits each project will provide and then authorize projects i.e. give permission for completion of projects.
It only manages similar projects.	It manages dissimilar projects.
Program management has smaller scope and objective than portfolio management.	Portfolio management has bigger scope and objective than program management.
Program management also focuses on management of budget and check risk but only at program level.	Portfolio management not only focuses on budget and risk of various programs but also focuses on future projects and overall organization goal.