IT portfolio management is the application of systematic management to the investments, projects and activities of enterprise Information Technology (IT) departments. Examples of IT portfolios would be planned initiatives, projects, and ongoing IT services (such as application support). The promise of IT portfolio management is the quantification of previously informal IT efforts, enabling measurement and objective evaluation of investment scenarios.
Debates exist on the best way to measure value of IT investment. As pointed out by Jeffery and Leliveld, companies have spent billions of dollars on IT investments and yet the headlines of mis-spent money are not uncommon. Nicholas Carr (2003) has caused significant controversy in IT industry and academia by positioning IT as an expense similar to utilities such as electricity.
IT portfolio management started with a project-centric bias, but is evolving to include steady-state portfolio entries such as infrastructure and application maintenance. IT budgets tend not to track these efforts at a sufficient level of granularity for effective financial tracking.
The concept is analogous to financial portfolio management, but there are significant differences. Financial portfolio assets typically have consistent measurement information (enabling accurate and objective comparisons), and this is at the base of the concept's usefulness in application to IT. However, achieving such universality of measurement is going to take considerable effort in the IT industry (see, for example, Val IT). IT investments are not liquid, like stocks and bonds (although investment portfolios may also include illiquid assets), and are measured using both financial and non-financial yardsticks (for example, a balanced scorecard approach); a purely financial view is not sufficient. Finally, assets in an IT portfolio have a functional relationship to the organization, such as an inventory management system for logistics or a human resources system for tracking employees' time. This is analogous to a vertically integrated company which may own an oil field, a refinery, and retail gas stations.
IT portfolio management is distinct from IT financial management in that it has an explicitly directive, strategic goal in determining what to continue investing in versus what to divest from.
At its most mature, IT portfolio management is accomplished through the creation of three portfolios:
Information Technology portfolio management as a systematic discipline is more applicable to larger IT organizations; in smaller organizations its concerns might be generalized into IT planning and governance as a whole.
Jeffery and Leliveld (2004) have listed several benefits of applying IT portfolio management approach for IT investments. They argue that agility of portfolio management is its biggest advantage over investment approaches and methods. Other benefits include central oversight of budget, risk management, strategic alignment of IT investments, demand and investment management along with standardization of investment procedure, rules and plans.
Jeffery and Leliveld (2004) have pointed out a number of hurdles and success factors that CIOs might face while attempting to implement IT portfolio management approach. To overcome these hurdles, simple methods such as proposed by Pisello (2001) can be used.
-Plan- - - - - build retire - - - - Maintain
Other implementation methods include (1) risk profile analysis (figure out what needs to be measured and what risks are associated with it), (2) Decide on the Diversification of projects, infrastructure and technologies (it is an important tool that IT portfolio management provides to judge the level of investments on the basis of how investments should be made in various elements of the portfolio), (3) Continuous Alignment with business goals (highest levels of organizations should have a buy-in in the portfolio) and (4) Continuous Improvement (lessons learned and investment adjustments).
There is no single best way to implement IT portfolio approach and therefore variety of approaches can applied. Obviously the methods are not set in stone and will need altering depending upon the individual circumstances of different organizations.
The biggest advantage of IT portfolio management is the agility of the investment adjustments. While balanced scorecards also emphasize the use of vision and strategy in any investment decision, oversight and control of operation budgets is not the goal. IT portfolio management allows organizations to adjust the investments based upon the feedback mechanism built into the IT portfolio management.
The first mention of the portfolio concept as related to IT was from Richard Nolan in 1973: "investments in developing computer applications can be thought of as a portfolio of computer applications." 
Further mention is found in Gibson and Nolan's Managing the Four Stages of EDP Growth in 1973. Gibson and Nolan proposed that IT advances in observable stages driven by four "growth processes" of which the Applications Portfolio was key. Their concepts were operationalized at Nolan, Norton & Co. with measures of application coverage of business functions, applications functional and technical qualities, applications age and spending.
McFarlan  proposed a different portfolio management approach to IT assets and investments. Further contributions have been made by Weill and Broadbent, Aitken, Kaplan, and Benson, Bugnitz, and Walton. The ITIL version 2 Business Perspective and Application Management volumes and the ITIL v3 Service Strategy volume also cover it in depth.
Various vendors have offerings explicitly branded as "IT Portfolio Management" solutions.
In peer-reviewed research, Christopher Verhoef has found that IT portfolios statistically behave more akin to biological populations than financial portfolios. Verhoef was general chair of the first convening of the new IEEE conference, "IEEE Equity," March 2007, which focuses on "quantitative methods for measuring, predicting, and understanding the relationship between IT and value."
High ^ |---------------------------------------------------------------| |Strategic | Turnaround | Impact |---------------------------------------------------------------| of IS/IT |Critical to achieving |May be critical to | applications |future business strategy. |achieving future | on future | (Developer) |business success | industry | | (Entrepreneur) | competitiveness |Central Planning | | | |Leading Edge/Free Market | |---------------------------------------------------------------| |Critical to existing business |Valuable but not critical | |operations |to success | | (Controller) | (Caretaker) | | | | |Monopoly | Scarce Resource | |_______________________________| ______________________________| |Factory | Support | |<---------------------------------------------------------------Low High Value to the business of existing applications.
MappIT is a free tool used to map and analyze IT SEC Portfolio assets (systems, business processes, infrastructure, people, skills, roles, organization, spending...) and their lifecycle. It was launched in its first version in February 2012.
IT portfolio management is an enabling technique for the objectives of IT Governance. It is related to both IT Service Management and Enterprise Architecture, and is seen as a bridge between the two. ITIL v3 calls for Service Portfolio Management which appears to be functionally equivalent.
A project is managed with a clear end date in mind, and according to a set scope and budget. It has a single easily definable tangible output. E.g. a list of deliverables, a new system or an improved process. The Management of Portfolios (MoP) standard of AXELOS defines a project as "... a temporary organization, usually existing for a much shorter time than a programme, which will deliver one or more outputs in accordance with a specific business case. A particular project may or may not be part of a programme."
A program is a collection of two or more projects sharing a common goal. Program managers control dependencies and allocate resources across projects. The MoP and Management of Successful Programmes (MSP) standards define a programme as "... a temporary, flexible organization created to coordinate, direct and oversee the implementation of a set of related projects and activities in order to deliver outcomes and benefits related to the organizations's strategic objectives. A programme is likely to have a life that spans several years."
A portfolio is a group of related initiatives, projects and/or programs that attain wide reaching benefits and impact. MoP definition: "An organization's portfolio is the totality of its investment (or segment therof) in the changes required to achieve its strategic objectives. ...focus is on the change initiatives that are delivered via formalized project and programme management methodologies."
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