Moving from CIO to CEO, while still rare, is on the radar of many modern Chief Information Officers exploring future career paths - who are able to look to a few trail blazers who succesfully made the switch from running the technology function to the becoming Chief Executive. [See also: From CIO to CEO - CIOs who made the step up to become CEO]

One of those is Dawn Lepore, who as CIO of Charles Schwab boosted her stock with an ambitious move to the internet as CEO of from 2004 until it was sold to Walgreens in 2011. Lepore said that implementing technologies to drive strategic advantages, coupled with the willingness to accept additional responsibilities and challenges, are table stakes for CIOs who aspire to become CEOs.

Speaking recently to our sister title in the US, we look at some of the tips from the CIO turned CEO on how aspirational CIOs can step up to the top job.

From CIO to CEO - Take risks and react quickly

"To take any CEO job, things change so rapidly, the marketplace changes, competition changes, you have to show that you can take on something that you've never done before or that you don't know anything about," Lepore said. "You have to show that you're willing to take risks and deal with ambiguity."

Lepore's signature move was launching Charles Schwab's e-commerce business in 1998 after recognising that the internet was emerging as a new way for businesses to reach customers. "I thought that it was going to be the future if it works, and if it doesn't I'm going to be part of the past," Lepore says. "That made a big difference; and it's about making sure that people know that you have broader aspirations."

From CIO to CEO - Lead digital transformation

CIOs have similar opportunities today in leading digital transformations, essentially remaking their businesses to be online, mobile and highly responsive to customers' changing preferences. Walgreens' move to allow consumers to refill prescriptions from a phone and Gold's Gym emphasis on customer engagement through its website and loyalty program are just two examples of this digital shift.

From CIO to CEO - Get outside of IT

Apart from transformational IT projects, CIOs can raise their corporate profiles by accepting new, and often foreign responsibilities, says Lepore, who worked in technology, operations, administration, strategy roles during her career at Charles Schwab. Joining corporate boards, helps, too. Lepore says she broadened her business insight by joining multiple corporate boards, including eBay, Wal-Mart Stores, AOL and the New York Times. She credits her participation on these disparate boards with exposing her to how CEOs think and address challenges.

From CIO to CEO - Offer value to the board

But, she says, CIOs interested in joining corporate boards must be sure they have something unique to bring to the table. "Do you have great international experience or understand cyber-risk better than everybody?" Lepore says. "Whatever it is, understand what your strengths are and try to figure out what company can benefit from your expertise."

She says it's easier for CIOs to become CEOs of companies that are heavily based on technology, as their technical and business acumen should serve them well. For example, " was a retail company but it was completely technology-enabled," she says. Enterprise technology companies,which that sell to CIOs, are also good fits because the CIOs already know the customer to which the business is selling.

From CIO to CEO - Cultivate innovation

"How is your organization viewed both inside the company and outside the company? When startups call on a company, do they try to go around the CIO and the tech organisation and go right to the business because they're viewed as dinosaurs, or are you talking to entrepreneurs and venture capitalists to learn what's going on," Lepore said.

From CIO to CEO - Understand your company's business

CIOs must be able to engage in strategic discussions about the direction of your business and your competition. "If all you talk about is technology that is going to limit you."

From CIO to CEO - Get a coach

But only if you need it. Soon after she was promoted over her Charles Schwab peers to CIO in 1994, she learned that employees had begun calling her "the ice queen". Her boss advised her to "grow her leadership capabilities quickly". Lepore, who says she had grown accustomed to dealing in ambiguity working in technology, hired a coach to help improve her communication skills. "She helped me communicate and figure out who I was as a leader," Lepore said.

From CIO to CEO - Don't 'emotionally blackmail' your boss.

Telling your boss that if he or she cuts your budget you can't guarantee system uptime is a surefire way to land in the dog house. "How you deal with senior management at the company is going to be part of how you're judged as a business leader."

From CIO to CEO - Avoid technospeak

Don't engage in techspeak with your boss. Be wary of bewitching them with jargon, acronyms and, of course, Hadoop.